military radar presentations are required for reference to prepare new PPT.

1. MILITARY RADAR
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2.  INTRODUCTION
 FEATURES & BENIFITS
 SYSTEM CONFIGURATION
 TERMINAL EQUIPMENT
 BLOCK DIAGRAM
 SYSTEM FUNCTIONS
 EQUIPMENT FUNCTIONS
 FUNCTIONAL BLOCK DIAG.
 LPI
 ANTENNA & LANDMINES
 CONCLUSION
 REFERENCES
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3.  RADAR (Radio Detection And Ranging) is a way to detect
and study far off targets by transmitting a radio pulse in
the direction of the target and observing the reflection of
the wave.

4. Target
• Target range =
ct
2
where c = speed of light
t = round trip time

5. Military radar : Gather information
highly mobile
target synchronization
weapon control
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6. All Weather
Night Capability
Target Handling
Fast Reaction
Easy Operation
High Resolution
Linear/Circular polarized.
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8.  Radar Group: antenna,remote control,AFC,
interrogator
 Shelter: display unit, PPI(plane position
indicator), processor unit &
battery
 Motor generator: power supply
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9. T.D.R: target data receiver
 Parallax correction
 Threat evaluation
LINE CONNECTION ADAPTER:
receive data
2-wire telephone line
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11. • Atmospheric attenuation
• Reflection off of earth’s
surface
• Over-the-horizon diffraction
Radar beams can be attenuated, reflected and
bent by the environment

12.  DETECTION: Moving target data displayed
over PPI
 TARGET TRACKING: Track of moving target
 DECODING: Transmitted by VHF-FM/line
comm.
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Message
decoded/parall
ax correction
Threat
evaluation &
display of
result
Target
selection
Faring at target
Weapon aiming

14.  TARGET DECODING:
 Receive & Decode Inf.
 PARALLAX CORRECTION: x-y to pollar
coordinates
 THREAT EVALUATION: Display azimuthal
angle of threatning
targets
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16.  HT UNIT: main voltage to dc voltage
 MAGNETRON: RF power generator
 LO+AFC:
decide frequency of radar pulse
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17.  Low probability of Interception (LPI) :
Is to see and not be seen.
 Low enemy’s electronic counter-measures (ECM)
 Use narrow main-lobe and extremely low side-lobes
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18.  The technology of ground penetrating radar
uses Ultrawideband (UWB) techniques.
 Detectburied landmines as small as 10 square
cm
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20.  PARABOLIC REFLECTOR:
rotating with a high speed. In the focus of the
reflector is a radiator, which emits the pulses,
and which receives the RF echo pulses.
 In the waveguide is the polarization shifter,
which causes the polarization of the RF
energy to be either horizontally or circularly.
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21.  Time - Radar can take up to 2 seconds to
lock on
 Radar has wide beam spread (50 ft
diameter over 200 ft range).
 Cannot track if deceleration is greater than
one mph/second.
 Large targets close to radar can saturate
receiver.
 Hand-held modulation can falsify
readings.
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22.  Military radars are one of the most important
requirements during the wartime
 Used for early detection of ballistic missile and also
for accurate target detection and firing.
 Advises the weapon crew which target can be
engaged first.
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23.  ) Skolnik ‘Introduction to Radar Systems’ McGraw
Hill
 2) ‘Electronic Communication Systems’ by Kennedy,
Davis Fourth Edition
 3) Bharat Electronics Limited website www.bel-
india.com
 Radar Detection of Landmines – Dr Y Yerima – A
Paper Presented at the Faculty of Engineering
Seminar, NDA May 2004.
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