1 / 14

CINEMA Communications and Ground System Overview for Future Space Missions

This document outlines the communications and ground systems for the CINEMA project, detailing concepts of operations, S-band communications, and flight software functionalities. Key operational parameters include mission orbit specifics, access times, and data recovery processes. It discusses various system components, including transceivers, antennas, link budgets, and ground stations, highlighting ongoing trades and development of prototypes. The agenda also covers system modifications and the integration of communication standards for efficient mission execution in future space environments.

shelby
Download Presentation

CINEMA Communications and Ground System Overview for Future Space Missions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CINEMA Communications & Ground Systems Manfred Bester

  2. Agenda • Agenda • Concept of Operations • S-Band Communications • Ground Systems • Flight Software • Future Work

  3. Concept of Operations • Concept of Operations • Mission Orbit • Spin Stabilized Spacecraft • Baseline Orbit 650 km Circular at 72° Inclination • Pass Coverage • Typically 4 Passes/day with 30 min Access Time • Tracking via TLEs Downloaded from USSTRATCOM • Data Recovery • Store-and-forward Scheme, Downlink at 1 Mbps • Recoverable Science Data Volume 760 Mbits/day • Ground Segment • MOC and Ground Station Located at UCB/SSL • Look into Using Heritage Control System (ITOS)

  4. CINEMA Ground Track

  5. Communications Concept CINEMA BGS 3m Eng TLM/CMD 2400-2450 MHz BGS 11m Science TLM 2200-2300 MHz MOC at UCB/SSL

  6. S-Band Communications • S-Band Communications • Telecom Trades • Transceivers • Flight Antennas • Flight Software • Ground Software • Ground Stations • BGS 11m • BGS 3m • Link Budgets • STDN and WiFi Links • Spectrum Licensing

  7. S-Band Link Budgets • Link Budgets for STDN and WiFi TLM Links

  8. STDN S-Band Link • STDN S-Band Link • Transceiver Options: SpaceQuest, Emhiser • Heritage: CHIPSAT, Various Others • Spectrum Licensing: Need NTIA License • Trades • Advantages: Can Use BGS “As Is” • High Link Margin • Low Risk • Disadvantages: Onboard Software Changes • Ground Software Changes SpaceQuest TX-2400 Transmitter

  9. WiFi S-Band Link • WiFi S-Band Link • Transceiver Options: MicroHard • Heritage: GENESAT • Spectrum Licensing: Need Amateur Radio License • Trades • Advantages: Reuse Existing Flight Hardware • and Software • Disadvantages: Need Additional Ground Station • Unknown Impact of Local WiFi • Interference MicroHard MHX-2440 Transceiver

  10. S-Band Prototype Antennas • First Prototype Model • Linear Polarized Patch Antenna • Overall Dimensions 70.2 x 70.2 mm2 • RT/Duroid 6002 Material Ordered • Thickness 3.048 mm, Copper Cladding 0.035 mm, εr = 2.94 • Fabricate Antenna at SSL • Test with BGS 11-m Antenna in Far Field

  11. S-Band Flight Antennas • Flight Models • Circular Polarized Patches: • Need 4 • Typical Gain Pattern: • Hemispherical with Taper • Performance Goals • See Table Below

  12. Ground Systems • Ground Systems • Mission Operations • Command and Control System • Mission Planning Products • Ground Station • Science Data Processing

  13. Flight Software Functions

  14. Future Work • Future Work • Communications Design • Trades for Selection of Radios Ongoing • S-Band Antenna Prototyping Ongoing • Ground Systems • Ground Station Options Tied to Selection of Radios • Command & Control Systems • Flight Software • Received PharmaSat Code from ARC • Need to Look into Modifying Code • Develop Code to Interface to High-rate Transmitter • Consider Other Options • Look into CCSDS Compatibility

More Related