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Satellite Interception

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Satellite Interception

  1. 1. Introduction to Satellite Tactical & Strategic Intercept Delma MSS Satellite Intercept
  2. 2. Personal Satellite Communications <ul><li>Significant growth in services & uptake </li></ul><ul><li>Terminal size reduced </li></ul><ul><li>Low cost of usage </li></ul><ul><li>Can be used where no GSM coverage exists </li></ul><ul><li>Data & fax services now available </li></ul>Delma MSS Satellite Intercept
  3. 3. Satellite Communications <ul><li>LEO – Low Earth Orbit </li></ul><ul><li>- Iridium, Teledesic </li></ul><ul><li>MEO – Medium Earth Orbit </li></ul><ul><li>- Globalstar, ICO international, </li></ul><ul><li>GEO - Geostationary </li></ul><ul><li>- Thuraya, Garuda, Inmarsat, ICO, MSV </li></ul>Delma MSS Satellite Intercept
  4. 4. Iridium <ul><li>66 Low Earth Orbit satellites operating as a fully meshed network, 11 satellites in 6 orbital planes separated by 31.6  </li></ul><ul><li>Each satellite is linked to 4 others </li></ul><ul><li>Each satellite is in polar orbit at 780km & has 46 spot beams </li></ul><ul><li>Each orbit is approx 100 minutes </li></ul><ul><li>L-band to handset; 1.616 GHz – 1.6265 GHz </li></ul><ul><li>Ku band between satellites; 23.18GHz – 23.38GHz </li></ul><ul><li>GSM based architecture, 2.4kb/s codec </li></ul>Delma MSS Satellite Intercept
  5. 5. Iridium Coverage <ul><li>Global including oceans </li></ul>Delma MSS Satellite Intercept
  6. 6. Teledesic <ul><li>288 Low Earth Orbit Satellites planned </li></ul><ul><li>Backed by Bill Gates </li></ul><ul><li>Data communication to 100Mb/s </li></ul><ul><li>Suspended in 2002 </li></ul>Delma MSS Satellite Intercept
  7. 7. Globalstar <ul><li>48 Medium Earth Orbit satellites in 8 orbital planes </li></ul><ul><li>Uses Qualcom’s CDMA technology </li></ul><ul><li>L-band to handsets </li></ul><ul><li>Several ground stations for routing calls to the terrestrial network </li></ul><ul><li>Some issues with satellite failures </li></ul>Delma MSS Satellite Intercept
  8. 8. Globalstar Coverage Delma MSS Satellite Intercept Coverage not global due to incomplete constellation
  9. 9. ICO <ul><li>10 Medium Earth Orbit satellites; 10,390km </li></ul><ul><li>Uses 12 Earth stations and terrestrial switching </li></ul><ul><li>Uses TDMA technology (GSM-like) </li></ul><ul><li>1 satellite in orbit, 4-5 ready </li></ul><ul><li>Contractual problems – not operational </li></ul><ul><li>Incorporates Odessey </li></ul>Delma MSS Satellite Intercept
  10. 10. Thuraya <ul><li>Geostationary satellites - 1 active over Sudan, 1 (new) over Borneo </li></ul><ul><li>Communicates with handset at L-band ( 1.525GHz – 1.559GHz, 1.6265GHz – 1.6605GHz ) </li></ul><ul><li>Communicates with ground at C-band </li></ul><ul><li>GSM phase 2-type technology </li></ul><ul><li>Very successful operationally – in excess of 6,000 calls per day </li></ul>Delma MSS Satellite Intercept
  11. 11. Thuraya Coverage Delma MSS Satellite Intercept
  12. 12. Garuda (ACeS) <ul><li>1 Geostationary satellite </li></ul><ul><li>Coverage of Far East </li></ul><ul><li>CDMA technology </li></ul><ul><li>140 spot beams </li></ul><ul><li>Now linked to Inmarsat (2006) </li></ul>Delma MSS Satellite Intercept
  13. 13. Garuda Coverage Delma MSS Satellite Intercept
  14. 14. Isatphone <ul><li>Derived from ACeS </li></ul><ul><li>Uses newest Inmarsat 4 satellite </li></ul><ul><li>Planned global expansion in 2009 </li></ul><ul><li>Similar to Thuraya </li></ul><ul><li>GSM-like technology </li></ul>Delma MSS Satellite Intercept
  15. 15. Delma MSS Satellite Intercept Isatphone coverage
  16. 16. ICO <ul><li>New ICO service using geostationary satellite </li></ul><ul><li>First launch imminent </li></ul><ul><li>Centred on USA & Canada </li></ul><ul><li>Mobile video & data </li></ul><ul><li>Not yet operational </li></ul>Delma MSS Satellite Intercept
  17. 17. MSV <ul><li>Coverage USA, Canada & Caribbean </li></ul><ul><li>2 new satellites due to be launched in 2009 </li></ul><ul><li>Will cover mobile broadband data </li></ul><ul><li>4G system for USA for mobile data & voice communication </li></ul><ul><li>Not yet operational </li></ul>Delma MSS Satellite Intercept
  18. 18. Inmarsat <ul><li>Oldest and most established </li></ul><ul><li>Inmarsat 3 first to use spot beam technology </li></ul><ul><li>Inmarsat M & mini-M voice & data services – laptop size terminals & antennas </li></ul><ul><li>Inmarsat 4 more powerful satellites </li></ul><ul><li>Initially, Inmarsat RBGAN packet data service </li></ul><ul><li>Inmarsat BGAN services now can use large handheld terminals </li></ul><ul><li>Concentration on data – mobile office apps </li></ul>Delma MSS Satellite Intercept
  19. 19. Coverage – Inmarsat 3 Delma MSS Satellite Intercept
  20. 20. Coverage – Inmarsat 4 Delma MSS Satellite Intercept
  21. 21. Capabilities of Delma MSS <ul><li>Fully functioning Thuraya monitoring systems, both strategic and tactical </li></ul><ul><li>Tactical & strategic monitoring for Inmarsat 3 (Inmarsat M & mini-M) </li></ul><ul><li>Work in progress on Inmarsat 4 (BGAN) </li></ul><ul><li>Tactical system for Iridium available but not produced by Delma MSS Direct Partners </li></ul>Delma MSS Satellite Intercept
  22. 22. VSAT <ul><li>Several operators </li></ul><ul><li>Provide broadband data & TV services </li></ul><ul><li>Monitoring systems been demonstrated </li></ul><ul><li>Specific to operator </li></ul><ul><li>Main requirement to locate terminals! </li></ul>Delma MSS Satellite Intercept
  23. 23. Thuraya Tactical Monitoring System (TTMS) <ul><li>Thuraya Tactical Monitoring System TTMS </li></ul><ul><ul><li>Receives L-band from satellite </li></ul></ul><ul><ul><li>Receives L-band line-of-site from handset </li></ul></ul><ul><li>Thuraya Strategic Monitoring System TSMS </li></ul><ul><ul><li>Receives L-band from satellite </li></ul></ul><ul><ul><li>Receives C-band from satellite </li></ul></ul>Delma MSS Satellite Intercept
  24. 24. TTMS GATEWAY THURAYA MES 1.5 GHz DOWN 1.6 GHz UP 3.5 GHz DOWN 6 GHz UP Thuraya System Operation November 2007 Delma MSS Satellite Intercept
  25. 25. TTMS GATEWAY THURAYA MES 1.5 GHz DOWN 1.6 GHz UP 3.5 GHz DOWN 6 GHz UP 1.5 GHz DOWN TTMS 1.6 GHz radio line of sight Thuraya Monitoring System Operation November 2007 Delma MSS Satellite Intercept
  26. 26. Delma MSS Satellite Intercept Thuraya Spot Beam coverage
  27. 27. Delma MSS Satellite Intercept TTMS case and antennae
  28. 28. IF Sat antenna Uplink antenna Downconverter Computer Basic system block diagram Chan 1 Chan 2 Delma MSS Satellite Intercept
  29. 29. Delma MSS Satellite Intercept Thuraya intercepted call data
  30. 30. Capabilities <ul><li>Up to 16 simultaneous channels </li></ul><ul><li>Up to 7 spot beams (one cluster) </li></ul><ul><li>Software receiver for demodulation </li></ul><ul><li>Voice, fax, data (by Q2 2008) </li></ul><ul><li>Portable system – peli-case </li></ul><ul><li>SQL data logging </li></ul>Delma MSS Satellite Intercept
  31. 31. Delma MSS Satellite Intercept Spot beam selection
  32. 32. <ul><li>The TTMS provides the following information once the target has been captured </li></ul><ul><li>List of current selected Thuraya Spot Beam IDs, GPS-position (co-ordinates) of geographic centre, and operating frequency. </li></ul><ul><li>List of adjacent Spot Beams, their GPS-positions and operating frequencies. </li></ul><ul><li>Date, Time and Duration of Call. </li></ul><ul><li>A 4 or 6 digit sub-set of the MES IMSI. </li></ul><ul><li>GPS position of the MES. </li></ul><ul><li>Country / Region of the target phone. </li></ul><ul><li>Random Reference Number (call ID). </li></ul><ul><li>The telephone number dialled by the MES. </li></ul><ul><li>TMSI of the called MES. </li></ul><ul><li>Event Type (Mobile or Fixed Originated Call, which can be either Voice, Fax or Data, SMS, etc) which can be initiated by either the MES or the Network. </li></ul><ul><li>Terminal Type. </li></ul><ul><li>Ciphering Key Sequence Number. </li></ul><ul><li>RAND and SRES. </li></ul><ul><li>Cipher Algorithm: A5/1/2/3/4/5/6/7. </li></ul>Delma MSS Satellite Intercept
  33. 33. Strategic Monitoring <ul><li>Monitor L-band downlink (one cluster) </li></ul><ul><li>Monitor C-band downlink (whole footprint) </li></ul><ul><li>Standard system – 32 simultaneous channels </li></ul><ul><li>Enhanced system – 64 channels </li></ul><ul><li>Additional (remote) L-band receivers </li></ul><ul><li>Enhanced storage systems supplied </li></ul><ul><li>Multiple workstations </li></ul><ul><li>Mapping system for locations </li></ul><ul><li>Fully software based (DSP) demodulation </li></ul>Delma MSS Satellite Intercept
  34. 34. 6GHz UP 3.5GHz DOWN 1.5GHz DOWN 1.6GHz UP 1.5GHz DOWN 3.5GHz DOWN TSMS Thuraya Strategic Monitoring System Delma MSS Satellite Intercept
  35. 35. Capabilities <ul><li>Both sides of voice from monitored clusters </li></ul><ul><li>GPS positions of handsets </li></ul><ul><li>Voice, Fax & Data decoding facilities </li></ul><ul><li>Monitoring of additional clusters </li></ul><ul><li>Software demodulation enables other protocols (Inmarsat etc) </li></ul>Delma MSS Satellite Intercept
  36. 36. TECHNICAL SPECIFICATION TTMS Antennas Pre-amplifiers Delma MSS Satellite Intercept S. No. Parameters Specification 1 Frequency Range 1.5 GHz – 1.7 GHz 2 Gain 3 dB or 15 dB selected for site. 3 Polarization LHCP 4 Type Patch S. No. Parameters Specification 1 Configuration Two nos. in 1+1 configuration 2 Frequency Band 1.525GHz – 1.559GHz, 1.6265GHz – 1.6605GHz 3 Gain at mid band 30 dB 4 Gain flatness ± 1 dB over full band 5 Gain stability ± 0.5 dB from 0°C to +50°C 6 VSWR Input and Output VSWR ≤ 1.30:1 7 Noise Temperature 170 ºK at 25ºC 8 Input and Output Connectors N Type Female/SMA type Female
  37. 37. 3. Downconverter Delma MSS Satellite Intercept S. No. Parameters Specification 1 Configuration Two nos. in 1+1 configuration 2 Type No inversion of spectrum 3 Input Frequency range 1.525GHz – 1.559GHz, 1.6265GHz – 1.6605GHz 4 Input RF level -45 dBm to -60 dBm 5 Attenuator range 0-60 dB , stepped 1 dB (remote control) 6 Input Impedance 50 Ω 7 Input connector SMA type Female 8 Input and Output Return loss > 15 dB 9 Output Frequency range 70 MHz±18 MHz 10 Output Impedance 50 Ω 11 Output Connector SMA Female 12 Conversion Gain 60 dB 13 Gain Stability ±1 dB (0ºC-50ºC) 14 Frequency Stability over time ±3x 10 -11 over 1 sec, ±3x 10 -9 per 12 hrs 15 Frequency Stability over temperature ±1x 10 -8 (0ºC-50ºC) 16 Noise Figure 6 dB at 0 dB attenuation 17 Phase Noise at 1 KHz offset -75 dBc/Hz 18 Phase Noise at 1 0 KHz offset -95 dBc/Hz 1 9 Monitoring and Alarm indicator monitoring ports RS232 of RF/IF signal
  38. 38. 4. Cable - low loss cable with attenuation 19 dB/100 meter. 5. Demodulation system 6. Decoding system Following types of calls are decoded: • Thuraya fixed/ MES to Thuraya fixed/ MES call • Fixed land line, PLMN, other GMPCS originated call to Thuraya MES/ fixed telephone. • Thuraya MES/ fixed telephone to fixed land line, PLMN, other GMPCS telephone. Delma MSS Satellite Intercept S. No. Parameters Specification 1 Type of demodulator Software - DSP 2 Function To demodulate L bands signals previously down converted to base band. 3 Demodulation Type Possible to demodulate digitally modulated signal for voice, data, fax, SMS etc. in common control channel, dedicated control channel and traffic channel. 4 Burst Support Thuraya GMPCS broadcast, control (dedicated and common) and traffic burst. 5 Input Frequency 70 MHz ± 18 MHz 6 Input Impedance 50 Ω 7 Input Connector SMA type Female 8 Remote control Ethernet 100/1000 Base T
  39. 39. a. Voice Decoder b. Fax Decoding c. Data Decoding d. SMS Decoding The system is able to decode SMS intercepted by the system. Delma MSS Satellite Intercept Sr. No. Parameter Specification 1 Function To decompress 5.2 kbps voice traffic 2 Decoding algorithm CVC AMBE + used over Thuraya network Sr. No. Parameter Specification 1 Function To decode fax calls intercepted by the system 2 Protocols Group 3 and Group 4 fax – 2.4 kbps, 4.8 kbps and 9.6 kbps rate Sr. No. Parameter Specification 1 Function To decode data calls intercepted by the system 2 Protocols Data – 2.4 kbps, 4.8 kbps and 9.6 kbps rate
  40. 40. Delma MSS Satellite Intercept Sr. No. Parameter Specification 1 Call Record Format The system collects and stores in the data base all important and necessary information which are received from a common signaling channel or extracted from the call recording e.g. reference number, type of call, MES ISDN No., IMEI, IMSI, TMSI, country code, area code, Spot beam ID number, RAND, SRES, Ciphering Algorithm type, Call duration, Called or Calling Number, Target Name/group etc.. 2 Filtering Criteria The system gives possibility to define the all important and necessary filtering criteria for recording / interception e.g. CLIP/Dialed number, Conferee ID, Target ID, Data, Time. 3 Search Facility The system provides various search options including wild card search for search the ID records data bases and communication data including SMS by defining all the important and necessary search criteria e.g. reference number, MES ISDN No., IMEI, IMSI, etc. 4 Database Management Software SQL based having original licensed service pack with server and client software.

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