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Comms slides boeing
- 1. GEO Bird SV Communication Subsystem Slides for Boeing April 16, 2013 Comms Slides Boeing
- 2. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Outline 1 GEO Bird Software Main Dish 2 SV Permanent Payload TT&C TT&C C&DH C&DH Software Comms Slides Boeing
- 3. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Requirements/Trades Description Specifications Source Transmit Frequency K-Band(19.500 GHz) RFP/Derived Date Rate <1.7 GB/s RPF/Derived Ground Antenna 3m in Colorado RFP Margin 3 dB Derived Gimbal 2-D Derived 0.5 m 1.0 m 3.0 m Gain (dB) 40 46.43 55.97 Power (W) 1159.87 292.47 35.61 Beamwidth 1.56 0.78 0.26 (degrees) Comms Slides Boeing
- 4. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Trades Cont. Gain (typical) HPBW Antenna (typical) Type (dB) (degrees) Bi-conical 0 to 5 40 to 70 Horn 5 to 20 5 to 10 Helix 5 to 20 360 Patch 0 to 10 60 Dipole 1 to 3 360 Mono-Dipole 1 to 6 360 Parabolic 15 to 65 <1 to 10 Comms Slides Boeing
- 5. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Link Budget Main Dish Downlink Frequency (GHz) 19.500 Data Rate (GB/s)(bps) (1.68)(1.45e10) RF Transmit Power (W) 111 Transmit Antenna Gain (dB) 47.12 Margin (dB) 3.78 Polarization RHCP FEC 3/4 Modulation 64-QAM Compression Lossless Comms Slides Boeing
- 6. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Comms Slides Boeing
- 7. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Cont. Comms Slides Boeing
- 8. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Requirements Description Specifications Source DeLorme InReach, Supported Devices RFP SPOT, and SARLINK Frequency Device Power (W) (MHz) SPOT I & II LLC 7 1610-1620 ARC SARLINK 5 406.0-406.1 DeLorme InReach 7 1616-1626 Comms Slides Boeing
- 9. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Link Budget DeLorme DeLorme SPOT I & SARLINK InReach Inreach II (Uplink) (Uplink) (Uplink) (Downlink) Frequency 1.615 0.406 1.621 1.621 (GHz) Data Rate 1045 1045 1045 1045 (bps) RF Transmit 7 5 7 5.1 Power (W) Transmit Antenna Gain -8.49 -20.4 -8.45 23.1 (dB) Margin (dB) 4.47 3.01 4.47 3.1 Comms Slides Boeing
- 10. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Comms Slides Boeing
- 11. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Cont. Comms Slides Boeing
- 12. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Requirements Description Specifications Source Transmit Frequency C-Band(4006.47 MHz) RFP/Derived Receive Frequency C-Band(6006.47 MHz) RFP/Derived Transmit Orientation Transmit in any Derived Receive Orientation Receive in any Derived Margin 3dB Derived Position Accuracy <1km Derived Nominal Operations Ground 2m Colorado RFP Antenna Transit Ground Antenna (List Them) Derived Comms Slides Boeing
- 13. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Trades DORIS versus GPS DORIS: 23 W typical, 30W for 2hr warmup GPS: 10W Mosaic GNSS Receiver DORIS: 420mm x 160mm diameter helical antenna, 2kg 390 x 370 x 165mm, 18kg electronic support box GPS: 10dB gain antenna with 40 degree beamwidth 272 x 284 x 92 mm, 3.9kg electronic support box Omni versus Patch Omni: Less ESD and easier to manufacture Patch: More ESD and harder to manufacture Omni: Less switches, made longer to look around vehicle edges Patch: More switches, requires extra structure to look around Comms Slides Boeing
- 14. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Link Budget Uplink Downlink Frequency (GHz) 6.006 4.006 Data Rate (bps) 9e4 9e4 RF Transmit Power (W) 10 5.3 Transmit Antenna Gain (dB) 39.39 6.78 Margin (dB) 5.82 3.07 Polarization RHCP RHCP FEC 1/2 1/2 Modulation BPSK BPSK Comms Slides Boeing
- 15. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Comms Slides Boeing
- 16. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Cont. Comms Slides Boeing
- 17. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Requirements Description Specifications Source 2.75 GB/s from Data Rate RFP Payloads Buffer 3 minutes Derived MIL-STD 1553, Interface RS-422, RS-232, Derived SpaceWire, LVDS Comms Slides Boeing
- 18. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Trades Bus Architecture Pros Cons 1 Central Computer 1 Hard to add nodes Centralized 2 Highly reliable 2 Large wire harnesses 1 Small wire harnesses Ring 1 Less reliable 2 easy to add nodes 1 Deterministic Data transmission 1 Specific Federated 2 Fewer Processors physical/electrical 3 interfaces Failures not as catastrophic 1 More complex testing Distributed 1 Highly reliable 2 More Processors Comms Slides Boeing
- 19. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Comms Slides Boeing
- 20. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Cont. Comms Slides Boeing
- 21. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Block Diagrams Cont. Comms Slides Boeing
- 22. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Requirements Description Specifications Source ADCS, Thermal, Power, Propulsion, Support Subsystems Derived Communications, and Rendezvous Monitoring, Support Fault Detection Identification, and Derived Correction Comms Slides Boeing
- 23. Main Dish Permanent Payload GEO Bird TT&C SV C&DH Software Software Allocation Computer Software Source Lines of Typical Component Code Throughput Executive 1000 60 Communication 4500 20 Attitude/Orbit Sensor 3600 30 Processing Attitude Determination and 27300 133 Control Attitude Actuator Processing 2400 6.2 Rendezvous 19800 51.2 Fault Detection 11500 22.5 Other Functions 7700 121 Total 85600 443.9 Total w/ FS=1.5 128400 665.85 Comms Slides Boeing
- 24. TT&C GEO Bird C&DH SV Software Outline 1 GEO Bird Software Main Dish 2 SV Permanent Payload TT&C TT&C C&DH C&DH Software Comms Slides Boeing
- 25. TT&C GEO Bird C&DH SV Software Requirements Description Specifications Source Transmit Frequency C-Band(4006.47 MHz) RFP/Derived Receive Frequency C-Band(6006.47 MHz) RFP/Derived Transmit Orientation Transmit in any Derived Receive Orientation Receive in any Derived Margin 3dB Derived Position Accuracy <1km Derived Nominal Operations Ground 2m Colorado RFP Antenna Transit Ground Antenna (List Them) Derived Comms Slides Boeing
- 26. TT&C GEO Bird C&DH SV Software Trades DORIS versus GPS DORIS: 23 W typical, 30W for 2hr warmup GPS: 10W Mosaic GNSS Receiver DORIS: 420mm x 160mm diameter helical antenna, 2kg 390 x 370 x 165mm, 18kg electronic support box GPS: 10dB gain antenna with 40 degree beamwidth 272 x 284 x 92 mm, 3.9kg electronic support box Omni versus Patch Omni: Less ESD and easier to manufacture Patch: More ESD and harder to manufacture Omni: Less switches, made longer to look around vehicle edges Patch: More switches, requires extra structure to look around Comms Slides Boeing
- 27. TT&C GEO Bird C&DH SV Software Link Budget Uplink Downlink Frequency (GHz) 6.006 4.006 Data Rate (bps) 9e4 9e4 RF Transmit Power (W) 10 5.3 Transmit Antenna Gain (dB) 39.39 6.78 Margin (dB) 5.82 3.07 Polarization RHCP RHCP FEC 1/2 1/2 Modulation BPSK BPSK Comms Slides Boeing
- 28. TT&C GEO Bird C&DH SV Software Block Diagrams Comms Slides Boeing
- 29. TT&C GEO Bird C&DH SV Software Block Diagrams Cont. Comms Slides Boeing
- 30. TT&C GEO Bird C&DH SV Software Ground Stations Comms Slides Boeing
- 31. TT&C GEO Bird C&DH SV Software Requirements Description Specifications Source Data Rate 9 kb/s Derived MIL-STD 1553, Interface RS-422, RS-232, Derived SpaceWire, LVDS Comms Slides Boeing
- 32. TT&C GEO Bird C&DH SV Software Trades Bus Architecture Pros Cons 1 Central Computer 1 Hard to add nodes Centralized 2 Highly reliable 2 Large wire harnesses 1 Small wire harnesses Ring 1 Less reliable 2 easy to add nodes 1 Deterministic Data transmission 1 Specific Federated 2 Fewer Processors physical/electrical 3 interfaces Failures not as catastrophic 1 More complex testing Distributed 1 Highly reliable 2 More Processors Comms Slides Boeing
- 33. TT&C GEO Bird C&DH SV Software Block Diagrams Comms Slides Boeing
- 34. TT&C GEO Bird C&DH SV Software Block Diagrams Cont. Comms Slides Boeing
- 35. TT&C GEO Bird C&DH SV Software Requirements Description Specifications Source ADCS, Thermal, Power, Propulsion, Support Subsystems Derived Communications, and Rendezvous Monitoring, Support Fault Detection Identification, and Derived Correction Comms Slides Boeing
- 36. TT&C GEO Bird C&DH SV Software Software Allocation Computer Software Source Lines of Typical Component Code Throughput Executive 1000 60 Communication 4500 20 Attitude/Orbit Sensor 3600 30 Processing Attitude Determination and 27300 133 Control Attitude Actuator Processing 1200 1.2 Rendezvous 4800 31.2 Fault Detection 11500 22.5 Other Functions 4700 33.5 Total 67400 331.4 Total w/ FS=1.5 101100 497.1 Comms Slides Boeing