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FCS and COMM

FCS and COMM. FCS – Flight Control System COMM – Communications (camera is assumed to be part of COMM) Satellite needs to handle both FCS and COMM systems Use of COTS (Consumer Off-the-Shelf) computer(s) aimed COMM utilizes a low-cost COTS transceiver radio. CPU selection for the Nanosat.

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FCS and COMM

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  1. FCS and COMM • FCS – Flight Control System • COMM – Communications (camera is assumed to be part of COMM) • Satellite needs to handle both FCS and COMM systems • Use of COTS (Consumer Off-the-Shelf) computer(s) aimed • COMM utilizes a low-cost COTS transceiver radio Formation Flying - T.Sugano

  2. CPU selection for the Nanosat • Arcom VIPER 400 MHz CPU recommended • VIPER is suitable because of its - Light weight, 96 grams - Operable temperature range, -40 C to + 85 C - Windows Embedded feature, easy to program - Computation speed, 400 MHz - Memory capacity, up to 64MB of SDRAM - Embedded audio I/O, necessary for COMM with voice radio • Redundancy can be implemented. Formation Flying - T.Sugano

  3. Arcom VIPER 400 MHz embedded controller Formation Flying - T.Sugano

  4. Radio selection for the Nanosat • Kenwood Free Talk XL 2W transceiver recommended • Kenwood Free Talk XL is suitable because of its - COTS nature, low cost - 2W of transmission power, more than enough for non-obstructed space communication, but higher wattage than FRS 500 mW radio - Ability to use both GMRS and FRS frequencies - FRS frequencies recommended because by international treaty FRS (Family walkie talkie) is restricted to 500 mW - 500 mW is too weak to penetrate into space - MilSpec cetified Formation Flying - T.Sugano

  5. Kenwood Free Talk XL 2W FRS/GMRS Transceiver • 15 UHF channels (7 FRS and 8 GMRS) • 2W output for both categories • DC 7.2 V (600mAh) • Circuit board weighs only 60 grams • Speaker/Microphone/Encapsulation Removed Formation Flying - T.Sugano

  6. Scheme of FCS/COMM Integration Formation Flying - T.Sugano

  7. Detailed Scheme of integration Formation Flying - T.Sugano

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