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I'SN                                                                                            06EC61
                                                                                                Ea
                         Sixth Scmcster B.E. D€grec Examinatior, Jun./July 2Oll
                                                Digital Communication

                                       Note: l. Ahsuet irhr FIVEfu 4o6tions, selectidz
                                                d b6t rtYO qLenionslron each pan
                                             2. Misihg ddtd b. saitablt asmed.
     €                                                    PART   -A
          t a.        Bnefly explain lLe    v   ious b6ic sis.nl procc$ine operado.s   i,   a digilal conmuni@tion
                      syslem.                                                                           (06   Mfk)
                b.    Consider lhe messag€ siglal c(0 = A@s(2rf.o . Plor dE slectnm oi the discEt€-time
     !               sisDl ss (t) dedved hy smpli.c et) for the sanplitr8 Bles: i) f! = 4 , n) fi = 3i. 06 M!&)
                c.   A lov pds sigal st) is sdpled !o eet s(t) Bitrs nar iop smpling Eerhod. obiah rhe
                     expr$ion for rhe suplins sisnal s(t) &d its speclm. E€nce sh6w Inat flal lop sdplins
!P:                  leadsto mplihld€ dislortion md explai. how n is mrecled     dui.glt.drtudol
i,                                                                                                      (03   Mrrk)
          2 a.       Explain lhe $ree basic nDdioN of a regeneralive rcpealer h a PCM slsrm, with a btock
E3                   diasru of the regeneralir€    reFater,                                     (06 Mrrk)
?t              b.   Five ne$aee sigmts s(r), s,(r), sr(r), sio and g(r) havins bandyidih! 2 KHz, 2 (I.tz,
6i                   2 KHz, 3 (Irz md I ruz       e
                                                 to h€ rresmitEd on a tine divisioD nnndd.x.d bsis using a
9?                   .ommon cnmet. Seru! a ehene for ac@ndishins this nurrid.xins eqnirmat qirh
                     @h D.ssaAc sisnaL smpl€d at its Nytuist Ele, Iind d1e Bini(M tEsmission ba widlh
Ei              c.   Ddive m €xpE$ion for the ourput sig@lro-q@tiation noise 6iio of a ejfom quntiar
E!
F5                   in lero oI srep size ol the q@ti4r. Hocq show thar for a onkead t !e ;ifom
                     .udns Lhc sNR h (SNIR,"           7.2rdB qheR .a 'js4r:hDba ot bns pci lmph.
                                                      -rM
;:
;!
'E!
                     A delta nodulator systea is designed to op€nte ai loiiiD$ the Nlq,isl6te to. a sisnal
                     with a 1O (Hz bodwidlh, Detmi," th" .uxi.,r4rsNR fo. u r-rer, iO,r .in,.ioia
                     bsbins m slope over load mi.                                               (0,r Mrk)
                b.   Wilh a rea! block diasm, *plain how e oDtic ibe         jsr.dJbr rne trdsnission ol
                                                                                                        (03   M.*n
                     Corsidd a mdom binary sequerce theE birs ffi siatistically ild@edenl d €qudly
::                   likiy. Detemine fie porer speclul ddiry for the NRZ potr fo*t ..q,"*nturioo or the
                     binary sequence. Iiol the powr spectla.                                  (osM k)
                     A  @mputer puts ont binary data at rhe nre of 64 Iiilobns p6 sg@d. Ihe ouhut is
!i
dT                   tdsined uing a bee bdd     bilary ?AM systeE tlur is desiened 6 tuve a raised cosioe
                     spectruD. DehiDe tle trmni$ion bmdwid6 EquiEd for @ch ofrte following roll or
                     radoErl)a-0.0 ird=0.5iii)d=0.75 iv)d-t.o                                      @5M.rk)
2                    The bioary dala 001 r 0l I I0l e alplied to rhe input of a duobinary
                                                                                          lBor with pi€code!.
                     Co$mrt lhe pre. ode, outp( duobnry coder ourout tud.om,pcdoeI*Fer ouFur.o-
                     (ir ilioal br O, rii) itrirla bn L Supoo"e Lh.r d@ b ercr d;rg rt6 ision, lt; ket
                     prcdu.d by scond dieit k redu*d ro Bo. Consrtuci {re rcw l@iw ulput. Wiite lhe
                     n4essary equtiom ad !rcctdEs at eacn step.
            c.       Writ€   a short   mre on EYE PATTERN
06EC5l

                                          PART ' B
a.   wnh $e block di.ems of QPSK taoin€r ad Eceiv.r, dplain lhe sendltjon ed
     ddodulation ofaQPsKwave,                                                       (03M i,)
b,   The biiary *qrence 1100t000110 ls applied lo a DPSK trmniner DEw the bloct
     diag@ of th€ tdnite. IlLutate tE e€.eElion of lh. D?S( sigml ed ste&h tle
     rcsuling wayefom at lle DPSK Ednihd oulprt                                     (03 Mnk)

     An FSK system Lansnits binary dara ar lne nE of 2 , 106 bns per seconA Dui.g lne
     souee of trdsnission AWGN of krc n.m dd two sided powr spectral dersiiy
      lo_'10 wtis per n€fiz is added to the siCml. The dditude of ihe reeived sil]uoidll wv€
     lor digit I or 0 is 1 nicrovolt. Detemine dE avelaCB lrobability ol synhol cror Esuing
     non-cohemtdd€ction.                                                                (0{Mrk)

     Using   tle crM s.bddt        orthogo@lialion   goc.du., 6nd a sel of olthonomal bsis
     frrctiom ro Ep6ent the 4 sicnals s(l), s,(l), $(t) and s(1) shoM in rhe Fis.Q6(a) belo{.
     ExpBs each offiese sigbals in te s ofte sei ofbdis nhciios,                   (r,Mrrk)

                                                                                 Fis.Q6(a)




b.   Explain tne imp.rt nce ol g€omerric inrerpretarion of sig.als. Illustrate fie &obetric
     rpfstaiion of sicaols for the ce of a 2-dinensioral sienal spu".       ,*
                                                                           , rt@i;,
                                                                                             ,*o,
a.   With block diagdms of a delector    ud                        wrking of a @mlatior
                                              vecror Eceives, exllain lhe
     leiver.                                                                    (03 M!tu)
b.   wlEi is a narched filter? Stow that $e spe.tiE ofrhe onrlnl signrl ofa batched fiher
     qilh the natched siglal   d   inDu! is prorortiomlto the endgy sD4tral deGity oI th. inpul

c.   co.sider the sisn  l (t) snoM in Fis.QTG). Delemirc the inpulse response ofde tuaiched
     filer. Plot the impuls €spoEe ed th. @tch.d filter oulput a o firction ofline.


                                                                Fis,Q7(c)

                                                         t
     A  psiodic PN seaurn* (mdiinm l g{r sequetue) of penod
     {Ci} = 00lrl0l00i1l0l"-. State &d yeriry lhe balre Folerty md M

b.   A spt !d speotrm @muicaliotr sysien h6 the following pddelff :
       Infomation bit duation = 16 = 4 milli ss      ,
                                                PN chip dualion- Tc = 2 mim s8.
     Fid Ue bn lale ofthe binary da1a, PN sequd@ lengd, bandwidlh ofrhe PN pqucn€ and
     pmEsing eain oflhe   srstes,                                            (0s Mrrk)
c.           t
     What freqMcy hop spead speciu? Describe th€ worting ofa Eequency hop spead
     NiFSK st6ten €nployins slow-AEqueey hoppins         lcclnique,          00 Mrrk)
usN                                                                                       t6F,C62

                         Sixth Semesrer B.E. Degree Et.Dirarioo- Jure/July 201I
                                                    Microprocessors

                                     Note. l.   Ae.r   dn! FIW fu qwnio$t s.l@tirB
                                               at Ldst TllO qustions ftom each parl
                                            2. Missi,E rldtd be sailablr asMe.L


                                                           PART - A
     T         a    Exdain thc "look ahead" featues of8086        prccssor.                   (o3Mtrkll
.;             b.   wirl sutable emds, exrlain ?sw i6 8086          pro@ssoi                  (06Mrlr
               c.   The opcode for MOV   i,silxdion is 100010. D€ternire 1tE oachine laCrDge @de for rn.

                    i)    Mov A!,BL                           ii) MOV, AX, BX
AI                  iit   Mov AL, IBx]                       iv) MOV AX, DS:[BP+
                    v)    MOv AL        0234h1               vi) MOV 4r,34h [B
E*
e!
:'!            a. Dchine atElhq       the folowiDs iBtructions d. valid
                    op@lion &d flals dfer.d, if lot valid Ddtion fie Mon I
                    i) )oAT Al-                              iD
                                                            MOV B)q [DX]
                    iii) NoT  34h
                    v)  TEST oPR1,          O?R2         lab.l.
                                                      vi) JNGE                         (06M.*sl
ai                  Write a prcCrar to ch.ck                             d not. Accelt th€ shin!
                                             qnldhd th€ siE string is palin&one
                    thrcus! Ieyboad md pdnt a suiiable mesag€, s "PAIINDROME' d 'NO,'
;i                  PAIINDROME",                                                       (O6M,I'
                    What & dsnbtcr dire.livs? Eidain the sisnjficace of lne following dsenb!.
i:                  diecliles with slitalle emples:
                    i) LENGTI'              iO T'F.Q NODB iV) EQU                     (O3MTK)
.B
iE             a.   List tlD sLing prlbilivE. Explai! thm wilh suitable exmples.
EE             b.   wdte 8086 MAcRDs to ac*pl a datl frob keybodd dd lo display Esult
i€                  Using anoye rddos, nite a prcgr@ 10 add two uprcked BCD Dmbes
               €-   Write e algodliE d a proE@ to convet ihe 81vm fou digit BCD daia

a,
ET
6'             a.   Expllitr   tbe   intempl sttucte of 8086, Wrir. lhe iDctiotr of ltl€at   fit
               b. Vril€ a s.hm€ to geneEre NMI ilteEulr otr pord 6ilue1od            explair.
               c. W € subrcurires 10 pedom llc foliowing in 8086 proessor :
E
                    it     Reset hap     iag
0SEC62

                                           PART   -B
a.   Wilh dev&l int iface diasmq qile a flowchad and prcsrm code fm 4 x 4 Eatrix
     teyboEd detcl debouce dd en@da           Pr@dw.                            U0 M,rls)
b,   Vlite & .nsoritbh and a prosld for e 8086 ploced* b dtiv. th€ stePPd 6otor. Assm€
     ue desirEd die€rion of oiatioD is ptts.d to {r. prGdue in A! (AL = I is cloctwis,
     AL = O is comla4lockuie) ed tb lruhd of steps is Pssd to lha prc4dE in CX Also
     Esue tull-sle! ood. ud the delay of 20          c
                                                     betqlen €aoL ste!. SlDw the nsessary
     ilterfncing   details.                                                      0o M.rxr)


a.   Repremt 178.625 using 80 bit lenloEy rcal fo@t. Us€ hex fomar for cxPEssing the
                                                                                      (0r   Mnk)
b.   Explain the   fo[o*ing i6trn€1iotrs of 808? @prcesu with suirab]. exdPles   :
     0 FILD i0 FXCE in) FLDPI
                              jV)IINIT                              (03Mrk!)
c.   Daw lnc foruts of STATUS d CONIROL FgisteE of 8087 NDP sd dcnne e&h bit
                                                                                      (03   Mirr,)

a.   Draw aiinirg diagru to ex€cute a Ddory Mite opeali@ in minin@ Eod. of 8086
     prmssr 0d explai!,                                                   {06 M.ik)
b    whar m rhe dfiemt statu ftar e giv.n ouL oD lhe bG S:. S, md S"in dimm mod€
     of 8086? Eow ditr@nl coDEol sisals ee een€tat d fron this hB? ExPlah bneflv each of

c-   Exptain the op@lion of     Bel   se.riotr of8284A clock gderator.


& ExelilE nnclion oflhc followins 80386 pi6              :

  i) ERROR        i, PEREQ           ii, L,ocK       iv) READY
  v) ADS          vi) RESET 1 vii) D/ C              vii, M
                         lhe   rEtul     model of
                                       oohrumins  dE                                 Ihg EFLAG

c. l;plaitrthefollovingwithEspect10?e iupo@ssor:
      i)     Brech pr€diction logic
      i0     Cach. slMtue
      iii)   SuD.. erld ehir.ctN.
05EC53
         usN

                      Sirth Semest€r B.E. Degr€e Errmtuation, June/July 2011
                                Analog and Mixed Mode VLSI Design

                                     Note.   1.   Aas              q@ttioB selecting
                                                        et FIVE full
                                                zt l.dst TtlO qu6tl4hs fiom each Parl
                                             2. Mbsing tldtd tu! b. saitablr 6sshed.

                                                            PART _ A
     !
     g         ..   ErTlain the ch!&terislics ofa s@ple md hoH cn uit            wd    in converti4   adog
     e
                                      ndinM        DNL (in LSB, for a 3'bir DAC wluch ha tn€ following
                                            fie DAC hne 3-bit &cuacy?      r@i, wfiat is the Esoluri.n ofthe DAC
     t                               Does


*+                                                          00t     010    0     100     r0i     lt0      l1l
                                                    0             t.5623   2.0   2.5    #      =3_4375
                                                                                                         4_l't5
                           in in d€1ail rhe .ssues io mired si8,Bl hyouB qrh (fr{€r.<ld
                                         iir nower sumlv md uoudine s:ue' liilliueldrr
                                                               gr
                           '.|'nnin'

1C                  Explai! .hage !@[ng DACs md Ltyolt consideralio
Ba
                    A 3 bi! ,sistor shing DAC M, dclisned *iih a d€siEd i$is1d of 500 O. Ana fabricalion,
36'                 disnrall @used rle @tul ulD. ofrl€ resislon to ]e,
E!
3,!
                    Rr'= 5000, Rr=4800, Rr =4700, R4= 5200, Rr-510O, R6=490(),
                    R7- 5l0O ed &=5004,
:!                  Delemine tle IIHiDm INL ed DNL forth€ DAC ssuing vrr= 5 v,                               (06   M.rk)
                    For a binary w€ighred clrnr steeinii DAC, oblain fie etpr.ssion for INL           6 ud DNL n$
Ee                                                                                                           (06   M.rk)
9!
E*                  Wirh a n al hlock diagm, €4lai! the slccessive alproxioalion ADC. Dnw the relew.i
                    binary search w.v€fom for ! 3-bn MtL D = 101.                           (03 Mrk)

NE                  Desisn a 3-bit nash AlC qil! ib q@lizalion e@ cslered ahout zelo LSBS. Detemine
iE                  lle qorsl-case DNL ed INL, if rcsislor natching is kroM lo be 5%. assue thai
                    V"r=   5V.                                                                               (06 Mak)
!:                  Explah with a block dias@, du,l slope ifi€EEted        ADC.                              (06 M.rk)


EE
6:             a.   Wilh   a   rclde! diagrd sing       MOSFETS, explain the 3 stages of a volllge @mlaralor
                                                                                                       1!, Mrrk)
!'             b.   E&lain lhe @ncept of salos nultiplier. Wil! relevat          d 8@       d€sdbe the pd?ing of a
                    CMOS mdriplid llat us$ Eultiplyinsqud.                                                   (03Mrk)
E
g
06EC53



                                              PART_B
    Assmirs fts q@lizaiion noise voltag€ to be VBB/y'l2. Show rhat av.Eging ihe oltpuls
    ofa data conve er qiU inprcle SNR.                                        (05 l,tlrk)

    Erllain fie accmulale and dm! cieit ued fo! delination in ADC. DEw lne EEqucncy
    BpoN ofthe ciouil for vdios ldB ofK.                                      O0 Mllls)
    DesritE lhe b dps 6lrc! inpLnentation wing a @mb filt ! ed a digiial Es@tor,
                                                                              (05 M.rk)


    Wiln    a   nal diagrh, expllin   lne CMOS    prcss flow   for sub   - 0,35Im pr@$.          (07   M..k)
    Deeiibe                                 ofa floating MOS capacitu.
                  the nethod of implemmlation                                                    106   Mrrb)
    Eplai! low .          sinlle delay elem€d ce b. qliad sins i) pss                        rmislo!  md
    i, clock CMOS lqic.                                                                          (o7Mitu)

    'wilh            circuil, qplain the working of a 4-bit pipdin d addd.
            a Deat                                                             D..{    the ciEuii ued for
    inplenoling l-bit       irl adde!.                                                         (r0 Mrr*.)
    Dacribe the impldenrdion of          a   sqitch uine NMOS dd PMOS          logic.
                                                                           Mrk!)                 (0r
    Expl.in th. lbcedB ftr selsrilg ihe chaml loelh of ! MOSFET, in rlrlog.ircun
    d6iel.                                                                                       (0.   Mrrr!)


L   Explain the      pmc*   of   bidiitg. pBh"luU e!ffier   c,/p   sLg. sith   a   it@ling   cmnt desisl
                                                                                             (05M!rk)
                                  or drnernbar mpbncr oal      N4 sole         follow€r ld€l shiner fo.
                                                                                                 (07   M.rks)
                                                                                                 (03   Mrrks)
0sN                                                                                                  06EC64

                         Sixth Semester B.E. Degree Etamnrdion, JurerEly 2011
                                            Antennas and Propagation

                                       Notet   Antuq atr FIWfUU qaertio8, s.lectihe
                                               dt ledd rWO q@sti,m l,om .dch pcrt

                                                      -       PART        A
    ,E   I a. D.nne the led dftctivity ed efie.tire op@lor ofD tuteM. Ddive the relado! forD in
              terns ofA.                                                              (o€ M-k)
                    D€file the following with r€sp€.t to mt@
                    i) EEe.tiveheiehr i, AnremafiddzoD4.                                                     (o,lMlrks)
 !                  Calcula& tne directivity ofthe sol@ with ihe pattem u = !n sitrO si!3{ uilg
    E               i) Escr method iD Apprcxinule Eelnod. Trte 0 < e < I1 dd 0 < 4 < rI.                     (03   Mrk)
si       2 ..       T!.       €eived b, the meiyins etema Et a disrece of 0.5 lo over a &e. spde .t a
                          power
!B                  ttg@ncy oI I GtIz is l0.8mv. Calculale the input to the &esnising &l!ma if g&in of
!+                  tasnittilg mr€m ed rcceiving d1o@ is 25dB aad 20dB Espstivdy. The gair is with
                    rcspecr    lo   i!oh!l. sue,
EY             b.   Explain lhe @ncept ofp.iDciple ofpattem Duliplicatiotr with            aa,orahlle. (06 M.rt€)
IE             c.   snow Lhar he widrh ol lne pritripk lob€ ota uil(m end-6'F;r,ay is            enrr rta rlar oia
                    mifom brcad{ide          uay.                                         .:             (03tu s)
9?
         3 a        Ddiv. the led cq@rio, !d r lir@ @y ri, strrpic loirr_ror.r,Tq of eaiDl
                    ed speiig, Ex!1rin ile !p4!atio! B i) Br.6d ide amy ii) Eid iE'iiay. , .
la             b.   4 GoEopi. poii! $!res           e
                                                pla.d        a$!t.
                                                                   .fte po*r
                                                                             is."SL9
                                                                Xn                                 t'_glr-
                    ed    a   pnae diferece of E1        b.t*d) adie.r    el€bcdl, dc
.i             (.   Usine
                    *oUi U.n"*
                              et&l merho( *k ulak
                                        rs "U I
                                                       lhe dielarce betwtr elments of brcad{de 5mv s,nose bed
                                                     ro*d b be 450 ar a       tum.v
                                                                                 of I 0MH7 nree        ;e
                                                                                                     s eleme.r
                    m   lte Ma).

               a. Sbniry    Aom the .oncept of nBeaetic vetor dd electlic scalc poi.ntials, derive the
                    expressios Ior th€ 6eld omporents of z short dipole fo! both em6ai @ dd for field
iE                                                                                                           (r0   Mrk)
               b. Wnteeteonfoldeddipoledtem                                                OaM'rki
E!             c. A half kye dipolc in A.e spee is ndiating wilh a crent of 1A (d, at the ddeie
*s                tc6i@l' Iind the ogle 0 for mdinu field sEenglh ed delenrine the field shength &d
EB                  powq density      Et a poinr   nib   Aom lne   mtem   ar the   (!respondine   aDele.     (06   Mrrk)
gi                                                                 PART-B
               a.   Daive Fd fiel.l expEssioB for sall loo!     etema,                       Oo Mrrk)
I              b,   E,plah th€ diffmt t)pes of          6t
                                                     lguld      ed cncde hoE tutema lor etarguld hoh
                    miie design equation for fle         m8le.                               (06 Mrtu)
               c.   Exllain tE sldl md complmenirry         atof4,                           (06M!rk)

               a.   Explain lhe      diat   mode patleh    ed   th€ ph6e vdocity of     Mve prclagation on Monollld
                                                                                                           O0 M.rk)
               b,   Expbin the working of log leionic eLma                                                   (05   M.rlc)
               c.   Writc a noie on Enbed,Ced dd ?lasna ni€M                                                 (05   MfI.!)
                                                                     I of2
'   068C54

     &plai! lh. pDr6eiti@ of wve b, Drlu of i) SuhG Erc i, Difr&ti@ o0 M.rk )
     rd Topoaldic wwe !tu!.!Btiot, !!w ltEt tte 6diq of cta.tw of pd! is . nDEiid
     ofEt of otEge of rcn&ri@ indd wih neighi oil lxplln lhe dt&l Prc!6grlio! of wE.
                                                                            o0 M.rkr.

     ExDlaiDthe   E c{tei@   of   INe   rBflectiotr   a@ iorosptlr.
     Fd lolo6Di6ic mre EoDlr.tioa shov thst dtdu.tion fa.tor          i5 giv@   b,
                                                                                         106   [r.rr.r

c.   A high 6ql@y Edio liDI{ ir grlblisbed 6r r naB. of 2oooto. I I ttr E0ctio Egid of
     th. ionosDh@ k ar r h.ieh oa 300kb od hs a qitiel qu@y ol 8Mllz. C6Lrdtt tt
                                                                 t
     trAinM ulabb A.q@cy. Dsiva lhe fotuul5 EeA
I]SN                                                                                                 06EC55

                              Sixth SeDester B,E. Degre€ Exsmimtior, Jrneduly 2011
                                               hformation Theory and Codilrg
                                                                                                        Msx. Marlcrloo
                                            Note    Ans|'I onNItE IuA qustiont s.kctine
                                                    at t.N 'two qu.stiors Imn .och port

                                                                    PART _ A
         E                           th€ inlo@adon oontenl of a aessag. is a          logaifihic nuc&n
            I                                                                                               of   ik prcbabiliry
                                                                                                                    Mark)
                                                                                                                    (06
                                         expre$id fo! aveBge iifomalio, contol (entropy) of               long indepddent
                                                                                                                    (0,r   Mrik)
                                         nodel     of. Mekofi sole    in Pig.Ql(c).

     :'t
     i*'                                                   -d
     i+                                                                Fie.ettc)
        $                  Frn4 ii Stak probabrllt} ii) FD@pJ ot t-Er o;ds soue @ lemrd ord.r:ou.e Hts,
    E    *                 udHry) iiilGr G jL)Filcienc) ajd rcdundecy ot 6F ordq souce, (0vrrk)
        !
                           Explain ShMon eDcodine algodtnh. Desjsn e m6der              sing Shjimm encoding a,goiirhr
.i.                            she
                           for.a     n":g r qvo,         ok
                                                      d poqbniry srari.Ls             p   t r,8, i.t6. 1/t6. 1.4. 1.8-. I,-r
It
    3                      rodLreeri:(i.r raEdu.b.,                                               {rs{D, )
                           txplah wilh    a d.al   bl(rrhe oigibl comshi.orion sysr(r indi.atrns tte vdoL
 ,E                        rypes of comhication'liag@,
                                                  chmels. Aje, de5ne lhe v&jous pe@bilni; ed nhen
9'
        1
                        r.laiioNhip with rspect lo coding           cho@I,                                         G0      Mrrtc)
s,
        T               A $ue eniB m independed seqEne ot spbots rroD & atphsbel cotuhiing of 5
,3                      sldlols A B. C. D dd t wi$ pDb3hliri8 p - I 0.4. O 2. 0.2; O.t. 0.t De;mitr
        &               Hunile,code.by. i) Shiituu rhe @Ebued srmboh lugh s posibh. iiir.Stunilg Ur
                        coobued srrtDl a lo* 6 pGsibte. ijir Find mdine efEciacy     ,rio* o Uori U,.
g
        e                                                                        ""a
                        TIE inpd ro rhe ch*.l@sisrr of j ,*m x = I xr. L. x,. &,
        5              r.udqsY         { y.yr.).. J. t. ahe n M of rhis ch"drt is dvm
                                                                                                -.I
                                                                                                     "r "r*,       #rH:l
i                                                                                               i! i?ic,ejGi.
,?
        E.                               0.25000
        E                                0.1 0.3 0 0
        a                                 0 0.0, 0,t 0
!                                         0 0 0,05 0.1
                                           000.050
E
a
                       ,                 ute ll(x), HtJ, H(xy), H
                       ii)               f dara lrdmbsion ed nuturl iDfmarim
                       in)               .l .alacity, cl@d emciocy and redudecy.

                                                                        I of2
06EC65

  a.     Dqive   e exlE$ior     for   ct@el.apej, ofe bilary Eralw che@i.                           (05   M.rk!)
  6. Explair the shturo0 Hdte) lh@lem
                                      md$,i lib . =r,aa-
                                                   ...s
                                                                                                    ro3MrrEr
                                           B +@!
  c. A CRT t.Eiial h ued m ok alphE!@qic dah idn
                         'r:-H*#;#ff
       iyr_n:*.-Ff                                    :#,in,lffi.-f Sft $#.il
       il
       n,        !,q $e *a*g.
                 r rd
                      uE        i,,ro-auotr pn cha&te .
                        chtur.l caD&itv
       iitl      Fildolewihu; Etesr khich dB dsa           ce          hr h!, *
                                                                   be                         .;:l::fl
                                               PART_f,
 a     Exphir the turix EpI s.nEti,o! oflM
                                           bt@k cods
 b     Coeder . 16. j t@q btat( code whok geEdor
                                                            Dablx i. givh b.toq.
                 lr o 0 r I tt
                    '

               c=Jo r o r , nl
                 lo o r r o rl
                  *
       ::l:,]j] (!s1e*tr._ ii) AII uoi!. q.isbE &d d d.n.s                     ,iir   MiniM
       @,Mb
                                        *..a*.i^i- w€ieht &d
                       n) rrit.cbal o'Eix ,,o."
                                                      i,-.?lii   l"
" ift?hffi.*:;:.,.,*rmffi:::*:trI{:1";.[;:,r".ia,d(x)=,
                                                          +x3.

" I i';l*H.:i'*x',"LH's'lcrarorporFobiar sx)'. * -,,,'                                   "
                                                                                             -'1',ITl
     til,   il-?i ryHli           lr.T,f x["8fi",ffi iri ;        :;,;:[.lffi1T:lii;
                                                                                              rl2    v'rkr)
L{plain ,oe folowilg cnor conror
                                        odes:
   ii)        Shoftncd crtlic   6der
   iv)        BNI ald ladom e@r @ftcrios cod*.
..T*T,*li,"HIi**.                       code   witrd.,-(r r o).so,-,r o r, uod80)-01D.
   I
  Li           PiDd EE effcEtu;
  ur)         DEv Ue encod* btoct ditu
  rv)         Iind tne serelaior oaEix
  vl          lind rtre codtuord aor lhe bc$ae. eouenc.      i   I rI I 0 l)
              Ltufer dmaiD appmact.                                            6ing tioFdollM tud
                                                                                         (r0 M.!k)
U8N                                                                                              06EC661

                       Sixth Semester B.E.    D€ge Eramination, Junr                         uly 2011
                                           Programming ln G++

                                    Not , Antuer ary FIWfuil4@ttiols, sel.ctlnp
                                          tt Last TWO qaeslobsltum.och part.
                                                   PART _ A
    ,!         a,   Wlal e pEproksso. dit.tives? Wlit is th.ir nudio? Giv. adcast six exmpl* of
    E
                    PrePrcces$! dirccliv.s.                                            (07 Mlrlc)
    E          b.   with e emple, exllain the drt Epes ed veiabt.s in C+.              (0i M,r{.)
               c.   Writeaprcgamtofindlhercois of aquad&liceqution dr +ix+o=0 uiog twiichi &d
                                                                                       (o? Mrrk)
    n
               a.   Explain the EioN looping constlcts *ailable in C+ wilh their            synrax.       0?    M r.)
               b.   Write a C+. Fo8!@ to inpui a *ries of inte.r n@b6 and sm thed                ad te@iBic when
EE
-*":                i) uing for loop  ii) Bilg while l@p.                                                 (0s   Md.!)
               c.   Vlite aCri proemto addthe l6t l5 ev€orub6 md                  disDlay   theirsun,     (05M.rk)
Ed
               a.            eriou g?es ofolmtos avdilable i! C+ wili exmple.
                    De*ribe lhe
               b. How do you pss e my to a tunction? Explain wili exeple pmslm.
               c, Vrit a Cri prog@ to calculate aE ud painetd of a ciel€.
ET             a. Wtll d.     th. tbE rcquircd staicmots for d.ry fiuciion in C+.? Wnt€
                    lo add the valne &m 1 to N uils Frclion (N = lO)?
AE             b,   wlat @ rhe advdnlges of usirg tulction? Exllain nston pameteB ed
:!                  pssing nechdism (with exmple pogm), uins swap, two integer nub6.

5i                                                          PART - B
5:
as.
               a.   D.fitre .la$ and object. With lhe h€lp ofg.nfrl syntd    d*cdb.     a   clas, cl6s   o@b6 ed
                    cla$ objed meys 6d v€cloB.                                                            00    Mrk!)
               b.   What @ cl6s ootrsEu.to md cl6s d6fr.ror? Give           {r     checl€listics of @ch (rtml8h
                    *mde pregm) to frd ilE ldgth of a srdng.                                          o0 M,rtr)

               a. w"d      is   opmrd osloadins? WiLl dr gensat synd qplain                the Foce$ of opqator
                    .wn&                                                                                  00    M.&)
!P             b.          aC+i progrelo overload lh.++        ed-     opeattr,                           00    Mlrk)
ep             B. Exp,ainhownewatrdd€let opelarorntug€n6oryaltcdiondynmicauy. 0.Mr*s)
6'             b. Wnte a C+ Uogtm to deoonsrate the rcw md detete op.Btd in overloading, (0fMr&;
               .. wlEi tu iihentance? Explain difreEnr rr!6 ofblrilmq                    (10 Mrrr,)


2                   wliie short loles on th. Iolowing   :

:              a.   Public, lnvate dd Drctec..d
               b.   L@al slaric dd slobol y{iables
!              c,   Bse cl,$ ad derived cl6s
               d.   R@Bi@ &d inlira nncti.n.
USN                                                                                               o5nc662

                          Six.h SemqterB.E. Degree Examinitiotr, Jure/July 2011
                                          Satollite Communlcstlon

                                   tlot   t   Answet @! FIW tull qtestiois, sddtinq
                                              at l.zst TWO qu.$tions I,om etuh pan

    I                                                     PART -A
    +          a-   Explai! teqrclcy au@atios for a       salcllit.                                         @6Mrrk)
               b,   Vil! suillble diagm explaitr vuiou defi.iti@ of tetus             u.d   to desdibe the losili@ of
                        o6it wirtr Hp.ct 10 earth,
    !!         €.
                    ihe
                    Calculate the apog* dd prige heighrs for lhe o$ilal ptuetcs given
                                                                                                             O0
                                                                                                     e = 0.0011501
                                                                                                                   MrLi)
                                                                                                                  @d
                    a = 7192-3 tm. Assme a n meanhodiuof6371kb.                                              (0,1Mrl.,)

               a,   Exllain plat @ olbit p.rtubatioB lh.,r        tol     place becsue ot non{phdicity       mtue of
                    eaih.                                                                                      flrrh)
                                                                                                             (07
               b.   Dedyc   e expr$sion ftr gmsiation      ryheieli.                                         (0rMrk)
               c,   Explai! in detaillhe eadl eclipse ofsaleltite du         rresft   outage.                00M.rr.!)
!a
33             a.   ErFlain what is mset by EIR?. A satellite do*Tli.l ar t2 cHz openres                wifi a tresoil
               _    po*r of 6W d a etem gain of48.2dB. Calculate tE EIRP in                  dBW.            OsMdk)
               b.                                                ofrhm.
                    Lisl lhe loses sufeEd h a sat€ltile link? ErTtain each                                   01    Mrk!;
11
B"a            a. WlEtisneorly sei.lhe atritude? Explainr*otras ofatritude conrol.                           {06   M.rk)
Et             b. Erylairnoh€ e whftl stetilizationofsarellire.                                              106   Mrrk!)
               c. Wilh a leal bloct d'as@ explain TT ad C albsysreE.                                         (0s   M.rk)

                                                          PART    -B
               a.   Explain with   0r lelp ofa ret   block diaEld of home teminil for DBS TV/FM rceprion.

               b. wlal is ftster mrem rv           systen? widl rie help of   a   diagtu   ,.,.,r. - *-"tly"THl
Sd                  MAry     s)6reD.                                                                         ,oo
               c.   Wilhene illtrsration exptair      the b6ric corcell   ofTDMA.                            10,
                                                                                                                   ^r,.r"t
                                                                                                                   "*"i
               a, ExrbinM*ing ofslade srs|em.                                                                (D!   M.rr,)
l€             b. Erplain the Irme and busl fomac for a IDMA systeD.                                         (lz   M.rk)
Et             a.   Explain frequdc] md loldizalion to! dilecl broddcasr          srellil. edices.
di             b.   Explai. itrbriefdiflemt tlTas ofsacllile bobile       swic*. !a:.
                    Writ. notes on   I
               a.   G?S
I
a              c. SusFclEo.ou ortir

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6th Semester Electronic and Communication Engineering (2011-July) Question Papers

  • 1. I'SN 06EC61 Ea Sixth Scmcster B.E. D€grec Examinatior, Jun./July 2Oll Digital Communication Note: l. Ahsuet irhr FIVEfu 4o6tions, selectidz d b6t rtYO qLenionslron each pan 2. Misihg ddtd b. saitablt asmed. € PART -A t a. Bnefly explain lLe v ious b6ic sis.nl procc$ine operado.s i, a digilal conmuni@tion syslem. (06 Mfk) b. Consider lhe messag€ siglal c(0 = A@s(2rf.o . Plor dE slectnm oi the discEt€-time ! sisDl ss (t) dedved hy smpli.c et) for the sanplitr8 Bles: i) f! = 4 , n) fi = 3i. 06 M!&) c. A lov pds sigal st) is sdpled !o eet s(t) Bitrs nar iop smpling Eerhod. obiah rhe expr$ion for rhe suplins sisnal s(t) &d its speclm. E€nce sh6w Inat flal lop sdplins !P: leadsto mplihld€ dislortion md explai. how n is mrecled dui.glt.drtudol i, (03 Mrrk) 2 a. Explain lhe $ree basic nDdioN of a regeneralive rcpealer h a PCM slsrm, with a btock E3 diasru of the regeneralir€ reFater, (06 Mrrk) ?t b. Five ne$aee sigmts s(r), s,(r), sr(r), sio and g(r) havins bandyidih! 2 KHz, 2 (I.tz, 6i 2 KHz, 3 (Irz md I ruz e to h€ rresmitEd on a tine divisioD nnndd.x.d bsis using a 9? .ommon cnmet. Seru! a ehene for ac@ndishins this nurrid.xins eqnirmat qirh @h D.ssaAc sisnaL smpl€d at its Nytuist Ele, Iind d1e Bini(M tEsmission ba widlh Ei c. Ddive m €xpE$ion for the ourput sig@lro-q@tiation noise 6iio of a ejfom quntiar E! F5 in lero oI srep size ol the q@ti4r. Hocq show thar for a onkead t !e ;ifom .udns Lhc sNR h (SNIR," 7.2rdB qheR .a 'js4r:hDba ot bns pci lmph. -rM ;: ;! 'E! A delta nodulator systea is designed to op€nte ai loiiiD$ the Nlq,isl6te to. a sisnal with a 1O (Hz bodwidlh, Detmi," th" .uxi.,r4rsNR fo. u r-rer, iO,r .in,.ioia bsbins m slope over load mi. (0,r Mrk) b. Wilh a rea! block diasm, *plain how e oDtic ibe jsr.dJbr rne trdsnission ol (03 M.*n Corsidd a mdom binary sequerce theE birs ffi siatistically ild@edenl d €qudly :: likiy. Detemine fie porer speclul ddiry for the NRZ potr fo*t ..q,"*nturioo or the binary sequence. Iiol the powr spectla. (osM k) A @mputer puts ont binary data at rhe nre of 64 Iiilobns p6 sg@d. Ihe ouhut is !i dT tdsined uing a bee bdd bilary ?AM systeE tlur is desiened 6 tuve a raised cosioe spectruD. DehiDe tle trmni$ion bmdwid6 EquiEd for @ch ofrte following roll or radoErl)a-0.0 ird=0.5iii)d=0.75 iv)d-t.o @5M.rk) 2 The bioary dala 001 r 0l I I0l e alplied to rhe input of a duobinary lBor with pi€code!. Co$mrt lhe pre. ode, outp( duobnry coder ourout tud.om,pcdoeI*Fer ouFur.o- (ir ilioal br O, rii) itrirla bn L Supoo"e Lh.r d@ b ercr d;rg rt6 ision, lt; ket prcdu.d by scond dieit k redu*d ro Bo. Consrtuci {re rcw l@iw ulput. Wiite lhe n4essary equtiom ad !rcctdEs at eacn step. c. Writ€ a short mre on EYE PATTERN
  • 2. 06EC5l PART ' B a. wnh $e block di.ems of QPSK taoin€r ad Eceiv.r, dplain lhe sendltjon ed ddodulation ofaQPsKwave, (03M i,) b, The biiary *qrence 1100t000110 ls applied lo a DPSK trmniner DEw the bloct diag@ of th€ tdnite. IlLutate tE e€.eElion of lh. D?S( sigml ed ste&h tle rcsuling wayefom at lle DPSK Ednihd oulprt (03 Mnk) An FSK system Lansnits binary dara ar lne nE of 2 , 106 bns per seconA Dui.g lne souee of trdsnission AWGN of krc n.m dd two sided powr spectral dersiiy lo_'10 wtis per n€fiz is added to the siCml. The dditude of ihe reeived sil]uoidll wv€ lor digit I or 0 is 1 nicrovolt. Detemine dE avelaCB lrobability ol synhol cror Esuing non-cohemtdd€ction. (0{Mrk) Using tle crM s.bddt orthogo@lialion goc.du., 6nd a sel of olthonomal bsis frrctiom ro Ep6ent the 4 sicnals s(l), s,(l), $(t) and s(1) shoM in rhe Fis.Q6(a) belo{. ExpBs each offiese sigbals in te s ofte sei ofbdis nhciios, (r,Mrrk) Fis.Q6(a) b. Explain tne imp.rt nce ol g€omerric inrerpretarion of sig.als. Illustrate fie &obetric rpfstaiion of sicaols for the ce of a 2-dinensioral sienal spu". ,* , rt@i;, ,*o, a. With block diagdms of a delector ud wrking of a @mlatior vecror Eceives, exllain lhe leiver. (03 M!tu) b. wlEi is a narched filter? Stow that $e spe.tiE ofrhe onrlnl signrl ofa batched fiher qilh the natched siglal d inDu! is prorortiomlto the endgy sD4tral deGity oI th. inpul c. co.sider the sisn l (t) snoM in Fis.QTG). Delemirc the inpulse response ofde tuaiched filer. Plot the impuls €spoEe ed th. @tch.d filter oulput a o firction ofline. Fis,Q7(c) t A psiodic PN seaurn* (mdiinm l g{r sequetue) of penod {Ci} = 00lrl0l00i1l0l"-. State &d yeriry lhe balre Folerty md M b. A spt !d speotrm @muicaliotr sysien h6 the following pddelff : Infomation bit duation = 16 = 4 milli ss , PN chip dualion- Tc = 2 mim s8. Fid Ue bn lale ofthe binary da1a, PN sequd@ lengd, bandwidlh ofrhe PN pqucn€ and pmEsing eain oflhe srstes, (0s Mrrk) c. t What freqMcy hop spead speciu? Describe th€ worting ofa Eequency hop spead NiFSK st6ten €nployins slow-AEqueey hoppins lcclnique, 00 Mrrk)
  • 3. usN t6F,C62 Sixth Semesrer B.E. Degree Et.Dirarioo- Jure/July 201I Microprocessors Note. l. Ae.r dn! FIW fu qwnio$t s.l@tirB at Ldst TllO qustions ftom each parl 2. Missi,E rldtd be sailablr asMe.L PART - A T a Exdain thc "look ahead" featues of8086 prccssor. (o3Mtrkll .; b. wirl sutable emds, exrlain ?sw i6 8086 pro@ssoi (06Mrlr c. The opcode for MOV i,silxdion is 100010. D€ternire 1tE oachine laCrDge @de for rn. i) Mov A!,BL ii) MOV, AX, BX AI iit Mov AL, IBx] iv) MOV AX, DS:[BP+ v) MOv AL 0234h1 vi) MOV 4r,34h [B E* e! :'! a. Dchine atElhq the folowiDs iBtructions d. valid op@lion &d flals dfer.d, if lot valid Ddtion fie Mon I i) )oAT Al- iD MOV B)q [DX] iii) NoT 34h v) TEST oPR1, O?R2 lab.l. vi) JNGE (06M.*sl ai Write a prcCrar to ch.ck d not. Accelt th€ shin! qnldhd th€ siE string is palin&one thrcus! Ieyboad md pdnt a suiiable mesag€, s "PAIINDROME' d 'NO,' ;i PAIINDROME", (O6M,I' What & dsnbtcr dire.livs? Eidain the sisnjficace of lne following dsenb!. i: diecliles with slitalle emples: i) LENGTI' iO T'F.Q NODB iV) EQU (O3MTK) .B iE a. List tlD sLing prlbilivE. Explai! thm wilh suitable exmples. EE b. wdte 8086 MAcRDs to ac*pl a datl frob keybodd dd lo display Esult i€ Using anoye rddos, nite a prcgr@ 10 add two uprcked BCD Dmbes €- Write e algodliE d a proE@ to convet ihe 81vm fou digit BCD daia a, ET 6' a. Expllitr tbe intempl sttucte of 8086, Wrir. lhe iDctiotr of ltl€at fit b. Vril€ a s.hm€ to geneEre NMI ilteEulr otr pord 6ilue1od explair. c. W € subrcurires 10 pedom llc foliowing in 8086 proessor : E it Reset hap iag
  • 4. 0SEC62 PART -B a. Wilh dev&l int iface diasmq qile a flowchad and prcsrm code fm 4 x 4 Eatrix teyboEd detcl debouce dd en@da Pr@dw. U0 M,rls) b, Vlite & .nsoritbh and a prosld for e 8086 ploced* b dtiv. th€ stePPd 6otor. Assm€ ue desirEd die€rion of oiatioD is ptts.d to {r. prGdue in A! (AL = I is cloctwis, AL = O is comla4lockuie) ed tb lruhd of steps is Pssd to lha prc4dE in CX Also Esue tull-sle! ood. ud the delay of 20 c betqlen €aoL ste!. SlDw the nsessary ilterfncing details. 0o M.rxr) a. Repremt 178.625 using 80 bit lenloEy rcal fo@t. Us€ hex fomar for cxPEssing the (0r Mnk) b. Explain the fo[o*ing i6trn€1iotrs of 808? @prcesu with suirab]. exdPles : 0 FILD i0 FXCE in) FLDPI jV)IINIT (03Mrk!) c. Daw lnc foruts of STATUS d CONIROL FgisteE of 8087 NDP sd dcnne e&h bit (03 Mirr,) a. Draw aiinirg diagru to ex€cute a Ddory Mite opeali@ in minin@ Eod. of 8086 prmssr 0d explai!, {06 M.ik) b whar m rhe dfiemt statu ftar e giv.n ouL oD lhe bG S:. S, md S"in dimm mod€ of 8086? Eow ditr@nl coDEol sisals ee een€tat d fron this hB? ExPlah bneflv each of c- Exptain the op@lion of Bel se.riotr of8284A clock gderator. & ExelilE nnclion oflhc followins 80386 pi6 : i) ERROR i, PEREQ ii, L,ocK iv) READY v) ADS vi) RESET 1 vii) D/ C vii, M lhe rEtul model of oohrumins dE Ihg EFLAG c. l;plaitrthefollovingwithEspect10?e iupo@ssor: i) Brech pr€diction logic i0 Cach. slMtue iii) SuD.. erld ehir.ctN.
  • 5. 05EC53 usN Sirth Semest€r B.E. Degr€e Errmtuation, June/July 2011 Analog and Mixed Mode VLSI Design Note. 1. Aas q@ttioB selecting et FIVE full zt l.dst TtlO qu6tl4hs fiom each Parl 2. Mbsing tldtd tu! b. saitablr 6sshed. PART _ A ! g .. ErTlain the ch!&terislics ofa s@ple md hoH cn uit wd in converti4 adog e ndinM DNL (in LSB, for a 3'bir DAC wluch ha tn€ following fie DAC hne 3-bit &cuacy? r@i, wfiat is the Esoluri.n ofthe DAC t Does *+ 00t 010 0 100 r0i lt0 l1l 0 t.5623 2.0 2.5 # =3_4375 4_l't5 in in d€1ail rhe .ssues io mired si8,Bl hyouB qrh (fr{€r.<ld iir nower sumlv md uoudine s:ue' liilliueldrr gr '.|'nnin' 1C Explai! .hage !@[ng DACs md Ltyolt consideralio Ba A 3 bi! ,sistor shing DAC M, dclisned *iih a d€siEd i$is1d of 500 O. Ana fabricalion, 36' disnrall @used rle @tul ulD. ofrl€ resislon to ]e, E! 3,! Rr'= 5000, Rr=4800, Rr =4700, R4= 5200, Rr-510O, R6=490(), R7- 5l0O ed &=5004, :! Delemine tle IIHiDm INL ed DNL forth€ DAC ssuing vrr= 5 v, (06 M.rk) For a binary w€ighred clrnr steeinii DAC, oblain fie etpr.ssion for INL 6 ud DNL n$ Ee (06 M.rk) 9! E* Wirh a n al hlock diagm, €4lai! the slccessive alproxioalion ADC. Dnw the relew.i binary search w.v€fom for ! 3-bn MtL D = 101. (03 Mrk) NE Desisn a 3-bit nash AlC qil! ib q@lizalion e@ cslered ahout zelo LSBS. Detemine iE lle qorsl-case DNL ed INL, if rcsislor natching is kroM lo be 5%. assue thai V"r= 5V. (06 Mak) !: Explah with a block dias@, du,l slope ifi€EEted ADC. (06 M.rk) EE 6: a. Wilh a rclde! diagrd sing MOSFETS, explain the 3 stages of a volllge @mlaralor 1!, Mrrk) !' b. E&lain lhe @ncept of salos nultiplier. Wil! relevat d 8@ d€sdbe the pd?ing of a CMOS mdriplid llat us$ Eultiplyinsqud. (03Mrk) E g
  • 6. 06EC53 PART_B Assmirs fts q@lizaiion noise voltag€ to be VBB/y'l2. Show rhat av.Eging ihe oltpuls ofa data conve er qiU inprcle SNR. (05 l,tlrk) Erllain fie accmulale and dm! cieit ued fo! delination in ADC. DEw lne EEqucncy BpoN ofthe ciouil for vdios ldB ofK. O0 Mllls) DesritE lhe b dps 6lrc! inpLnentation wing a @mb filt ! ed a digiial Es@tor, (05 M.rk) Wiln a nal diagrh, expllin lne CMOS prcss flow for sub - 0,35Im pr@$. (07 M..k) Deeiibe ofa floating MOS capacitu. the nethod of implemmlation 106 Mrrb) Eplai! low . sinlle delay elem€d ce b. qliad sins i) pss rmislo! md i, clock CMOS lqic. (o7Mitu) 'wilh circuil, qplain the working of a 4-bit pipdin d addd. a Deat D..{ the ciEuii ued for inplenoling l-bit irl adde!. (r0 Mrr*.) Dacribe the impldenrdion of a sqitch uine NMOS dd PMOS logic. Mrk!) (0r Expl.in th. lbcedB ftr selsrilg ihe chaml loelh of ! MOSFET, in rlrlog.ircun d6iel. (0. Mrrr!) L Explain the pmc* of bidiitg. pBh"luU e!ffier c,/p sLg. sith a it@ling cmnt desisl (05M!rk) or drnernbar mpbncr oal N4 sole follow€r ld€l shiner fo. (07 M.rks) (03 Mrrks)
  • 7. 0sN 06EC64 Sixth Semester B.E. Degree Etamnrdion, JurerEly 2011 Antennas and Propagation Notet Antuq atr FIWfUU qaertio8, s.lectihe dt ledd rWO q@sti,m l,om .dch pcrt - PART A ,E I a. D.nne the led dftctivity ed efie.tire op@lor ofD tuteM. Ddive the relado! forD in terns ofA. (o€ M-k) D€file the following with r€sp€.t to mt@ i) EEe.tiveheiehr i, AnremafiddzoD4. (o,lMlrks) ! Calcula& tne directivity ofthe sol@ with ihe pattem u = !n sitrO si!3{ uilg E i) Escr method iD Apprcxinule Eelnod. Trte 0 < e < I1 dd 0 < 4 < rI. (03 Mrk) si 2 .. T!. €eived b, the meiyins etema Et a disrece of 0.5 lo over a &e. spde .t a power !B ttg@ncy oI I GtIz is l0.8mv. Calculale the input to the &esnising &l!ma if g&in of !+ tasnittilg mr€m ed rcceiving d1o@ is 25dB aad 20dB Espstivdy. The gair is with rcspecr lo i!oh!l. sue, EY b. Explain lhe @ncept ofp.iDciple ofpattem Duliplicatiotr with aa,orahlle. (06 M.rt€) IE c. snow Lhar he widrh ol lne pritripk lob€ ota uil(m end-6'F;r,ay is enrr rta rlar oia mifom brcad{ide uay. .: (03tu s) 9? 3 a Ddiv. the led cq@rio, !d r lir@ @y ri, strrpic loirr_ror.r,Tq of eaiDl ed speiig, Ex!1rin ile !p4!atio! B i) Br.6d ide amy ii) Eid iE'iiay. , . la b. 4 GoEopi. poii! $!res e pla.d a$!t. .fte po*r is."SL9 Xn t'_glr- ed a pnae diferece of E1 b.t*d) adie.r el€bcdl, dc .i (. Usine *oUi U.n"* et&l merho( *k ulak rs "U I lhe dielarce betwtr elments of brcad{de 5mv s,nose bed ro*d b be 450 ar a tum.v of I 0MH7 nree ;e s eleme.r m lte Ma). a. Sbniry Aom the .oncept of nBeaetic vetor dd electlic scalc poi.ntials, derive the expressios Ior th€ 6eld omporents of z short dipole fo! both em6ai @ dd for field iE (r0 Mrk) b. Wnteeteonfoldeddipoledtem OaM'rki E! c. A half kye dipolc in A.e spee is ndiating wilh a crent of 1A (d, at the ddeie *s tc6i@l' Iind the ogle 0 for mdinu field sEenglh ed delenrine the field shength &d EB powq density Et a poinr nib Aom lne mtem ar the (!respondine aDele. (06 Mrrk) gi PART-B a. Daive Fd fiel.l expEssioB for sall loo! etema, Oo Mrrk) I b, E,plah th€ diffmt t)pes of 6t lguld ed cncde hoE tutema lor etarguld hoh miie design equation for fle m8le. (06 Mrtu) c. Exllain tE sldl md complmenirry atof4, (06M!rk) a. Explain lhe diat mode patleh ed th€ ph6e vdocity of Mve prclagation on Monollld O0 M.rk) b, Expbin the working of log leionic eLma (05 M.rlc) c. Writc a noie on Enbed,Ced dd ?lasna ni€M (05 MfI.!) I of2
  • 8. ' 068C54 &plai! lh. pDr6eiti@ of wve b, Drlu of i) SuhG Erc i, Difr&ti@ o0 M.rk ) rd Topoaldic wwe !tu!.!Btiot, !!w ltEt tte 6diq of cta.tw of pd! is . nDEiid ofEt of otEge of rcn&ri@ indd wih neighi oil lxplln lhe dt&l Prc!6grlio! of wE. o0 M.rkr. ExDlaiDthe E c{tei@ of INe rBflectiotr a@ iorosptlr. Fd lolo6Di6ic mre EoDlr.tioa shov thst dtdu.tion fa.tor i5 giv@ b, 106 [r.rr.r c. A high 6ql@y Edio liDI{ ir grlblisbed 6r r naB. of 2oooto. I I ttr E0ctio Egid of th. ionosDh@ k ar r h.ieh oa 300kb od hs a qitiel qu@y ol 8Mllz. C6Lrdtt tt t trAinM ulabb A.q@cy. Dsiva lhe fotuul5 EeA
  • 9. I]SN 06EC55 Sixth SeDester B,E. Degre€ Exsmimtior, Jrneduly 2011 hformation Theory and Codilrg Msx. Marlcrloo Note Ans|'I onNItE IuA qustiont s.kctine at t.N 'two qu.stiors Imn .och port PART _ A E th€ inlo@adon oontenl of a aessag. is a logaifihic nuc&n I of ik prcbabiliry Mark) (06 expre$id fo! aveBge iifomalio, contol (entropy) of long indepddent (0,r Mrik) nodel of. Mekofi sole in Pig.Ql(c). :'t i*' -d i+ Fie.ettc) $ Frn4 ii Stak probabrllt} ii) FD@pJ ot t-Er o;ds soue @ lemrd ord.r:ou.e Hts, E * udHry) iiilGr G jL)Filcienc) ajd rcdundecy ot 6F ordq souce, (0vrrk) ! Explain ShMon eDcodine algodtnh. Desjsn e m6der sing Shjimm encoding a,goiirhr .i. she for.a n":g r qvo, ok d poqbniry srari.Ls p t r,8, i.t6. 1/t6. 1.4. 1.8-. I,-r It 3 rodLreeri:(i.r raEdu.b., {rs{D, ) txplah wilh a d.al bl(rrhe oigibl comshi.orion sysr(r indi.atrns tte vdoL ,E rypes of comhication'liag@, chmels. Aje, de5ne lhe v&jous pe@bilni; ed nhen 9' 1 r.laiioNhip with rspect lo coding cho@I, G0 Mrrtc) s, T A $ue eniB m independed seqEne ot spbots rroD & atphsbel cotuhiing of 5 ,3 sldlols A B. C. D dd t wi$ pDb3hliri8 p - I 0.4. O 2. 0.2; O.t. 0.t De;mitr & Hunile,code.by. i) Shiituu rhe @Ebued srmboh lugh s posibh. iiir.Stunilg Ur coobued srrtDl a lo* 6 pGsibte. ijir Find mdine efEciacy ,rio* o Uori U,. g e ""a TIE inpd ro rhe ch*.l@sisrr of j ,*m x = I xr. L. x,. &, 5 r.udqsY { y.yr.).. J. t. ahe n M of rhis ch"drt is dvm -.I "r "r*, #rH:l i i! i?ic,ejGi. ,? E. 0.25000 E 0.1 0.3 0 0 a 0 0.0, 0,t 0 ! 0 0 0,05 0.1 000.050 E a , ute ll(x), HtJ, H(xy), H ii) f dara lrdmbsion ed nuturl iDfmarim in) .l .alacity, cl@d emciocy and redudecy. I of2
  • 10. 06EC65 a. Dqive e exlE$ior for ct@el.apej, ofe bilary Eralw che@i. (05 M.rk!) 6. Explair the shturo0 Hdte) lh@lem md$,i lib . =r,aa- ...s ro3MrrEr B +@! c. A CRT t.Eiial h ued m ok alphE!@qic dah idn 'r:-H*#;#ff iyr_n:*.-Ff :#,in,lffi.-f Sft $#.il il n, !,q $e *a*g. r rd uE i,,ro-auotr pn cha&te . chtur.l caD&itv iitl Fildolewihu; Etesr khich dB dsa ce hr h!, * be .;:l::fl PART_f, a Exphir the turix EpI s.nEti,o! oflM bt@k cods b Coeder . 16. j t@q btat( code whok geEdor Dablx i. givh b.toq. lr o 0 r I tt ' c=Jo r o r , nl lo o r r o rl * ::l:,]j] (!s1e*tr._ ii) AII uoi!. q.isbE &d d d.n.s ,iir MiniM @,Mb *..a*.i^i- w€ieht &d n) rrit.cbal o'Eix ,,o." i,-.?lii l" " ift?hffi.*:;:.,.,*rmffi:::*:trI{:1";.[;:,r".ia,d(x)=, +x3. " I i';l*H.:i'*x',"LH's'lcrarorporFobiar sx)'. * -,,,' " -'1',ITl til, il-?i ryHli lr.T,f x["8fi",ffi iri ; :;,;:[.lffi1T:lii; rl2 v'rkr) L{plain ,oe folowilg cnor conror odes: ii) Shoftncd crtlic 6der iv) BNI ald ladom e@r @ftcrios cod*. ..T*T,*li,"HIi**. code witrd.,-(r r o).so,-,r o r, uod80)-01D. I Li PiDd EE effcEtu; ur) DEv Ue encod* btoct ditu rv) Iind tne serelaior oaEix vl lind rtre codtuord aor lhe bc$ae. eouenc. i I rI I 0 l) Ltufer dmaiD appmact. 6ing tioFdollM tud (r0 M.!k)
  • 11. U8N 06EC661 Sixth Semester B.E. D€ge Eramination, Junr uly 2011 Programming ln G++ Not , Antuer ary FIWfuil4@ttiols, sel.ctlnp tt Last TWO qaeslobsltum.och part. PART _ A ,! a, Wlal e pEproksso. dit.tives? Wlit is th.ir nudio? Giv. adcast six exmpl* of E PrePrcces$! dirccliv.s. (07 Mlrlc) E b. with e emple, exllain the drt Epes ed veiabt.s in C+. (0i M,r{.) c. Writeaprcgamtofindlhercois of aquad&liceqution dr +ix+o=0 uiog twiichi &d (o? Mrrk) n a. Explain the EioN looping constlcts *ailable in C+ wilh their synrax. 0? M r.) b. Write a C+. Fo8!@ to inpui a *ries of inte.r n@b6 and sm thed ad te@iBic when EE -*": i) uing for loop ii) Bilg while l@p. (0s Md.!) c. Vlite aCri proemto addthe l6t l5 ev€orub6 md disDlay theirsun, (05M.rk) Ed a. eriou g?es ofolmtos avdilable i! C+ wili exmple. De*ribe lhe b. How do you pss e my to a tunction? Explain wili exeple pmslm. c, Vrit a Cri prog@ to calculate aE ud painetd of a ciel€. ET a. Wtll d. th. tbE rcquircd staicmots for d.ry fiuciion in C+.? Wnt€ lo add the valne &m 1 to N uils Frclion (N = lO)? AE b, wlat @ rhe advdnlges of usirg tulction? Exllain nston pameteB ed :! pssing nechdism (with exmple pogm), uins swap, two integer nub6. 5i PART - B 5: as. a. D.fitre .la$ and object. With lhe h€lp ofg.nfrl syntd d*cdb. a clas, cl6s o@b6 ed cla$ objed meys 6d v€cloB. 00 Mrk!) b. What @ cl6s ootrsEu.to md cl6s d6fr.ror? Give {r checl€listics of @ch (rtml8h *mde pregm) to frd ilE ldgth of a srdng. o0 M,rtr) a. w"d is opmrd osloadins? WiLl dr gensat synd qplain the Foce$ of opqator .wn& 00 M.&) !P b. aC+i progrelo overload lh.++ ed- opeattr, 00 Mlrk) ep B. Exp,ainhownewatrdd€let opelarorntug€n6oryaltcdiondynmicauy. 0.Mr*s) 6' b. Wnte a C+ Uogtm to deoonsrate the rcw md detete op.Btd in overloading, (0fMr&; .. wlEi tu iihentance? Explain difreEnr rr!6 ofblrilmq (10 Mrrr,) 2 wliie short loles on th. Iolowing : : a. Public, lnvate dd Drctec..d b. L@al slaric dd slobol y{iables ! c, Bse cl,$ ad derived cl6s d. R@Bi@ &d inlira nncti.n.
  • 12. USN o5nc662 Six.h SemqterB.E. Degree Examinitiotr, Jure/July 2011 Satollite Communlcstlon tlot t Answet @! FIW tull qtestiois, sddtinq at l.zst TWO qu.$tions I,om etuh pan I PART -A + a- Explai! teqrclcy au@atios for a salcllit. @6Mrrk) b, Vil! suillble diagm explaitr vuiou defi.iti@ of tetus u.d to desdibe the losili@ of o6it wirtr Hp.ct 10 earth, !! €. ihe Calculate the apog* dd prige heighrs for lhe o$ilal ptuetcs given O0 e = 0.0011501 MrLi) @d a = 7192-3 tm. Assme a n meanhodiuof6371kb. (0,1Mrl.,) a, Exllain plat @ olbit p.rtubatioB lh.,r tol place becsue ot non{phdicity mtue of eaih. flrrh) (07 b. Dedyc e expr$sion ftr gmsiation ryheieli. (0rMrk) c, Explai! in detaillhe eadl eclipse ofsaleltite du rresft outage. 00M.rr.!) !a 33 a. ErFlain what is mset by EIR?. A satellite do*Tli.l ar t2 cHz openres wifi a tresoil _ po*r of 6W d a etem gain of48.2dB. Calculate tE EIRP in dBW. OsMdk) b. ofrhm. Lisl lhe loses sufeEd h a sat€ltile link? ErTtain each 01 Mrk!; 11 B"a a. WlEtisneorly sei.lhe atritude? Explainr*otras ofatritude conrol. {06 M.rk) Et b. Erylairnoh€ e whftl stetilizationofsarellire. 106 Mrrk!) c. Wilh a leal bloct d'as@ explain TT ad C albsysreE. (0s M.rk) PART -B a. Explain with 0r lelp ofa ret block diaEld of home teminil for DBS TV/FM rceprion. b. wlal is ftster mrem rv systen? widl rie help of a diagtu ,.,.,r. - *-"tly"THl Sd MAry s)6reD. ,oo c. Wilhene illtrsration exptair the b6ric corcell ofTDMA. 10, ^r,.r"t "*"i a, ExrbinM*ing ofslade srs|em. (D! M.rr,) l€ b. Erplain the Irme and busl fomac for a IDMA systeD. (lz M.rk) Et a. Explain frequdc] md loldizalion to! dilecl broddcasr srellil. edices. di b. Explai. itrbriefdiflemt tlTas ofsacllile bobile swic*. !a:. Writ. notes on I a. G?S I a c. SusFclEo.ou ortir