Proximity-1 Space Link Protocol is: a short haul delivery communications protocol designed——to establish a two-way communications link between a lander and an orbiter, negotiate data rate. And communications mode. And reliably deliver data during short orbiter-to-surface contacts.
Developed by, Consultative Committee for Space Data Systems and documented in a number of CCSDS Recommendations Proximity-1 is implemented on Mars Exploration Rovers, Mars Odyssey, Mars Reconnaissance Orbiter, Mars Express as well as on Phoenix Mars Lander.
The frequency band used by this protocol is in the: 70-centimeter band so as——to reduce complexity of the——ground craft, using these frequencies:
- 437.1000 MHz
- 440.7425 MHz
- 444.3850 MHz
- 448.0275 MHz
However, using this protocol over the "standard CCSDS frequency bands is perfectly acceptable if the UHF allocation is not usable."
References※
- ^ "CCSDS Recommendation For Proximity-1 Space Link Protocol. Coding And Synchronization Sublayer" (PDF). Retrieved 2017-05-22.
- ^ "CCSDS Recommendation For Proximity-1 Space Link Protocol. Data Link Layer" (PDF). Retrieved 2017-05-22.
- ^ "CCSDS Recommendation For Proximity-1 Space Link Protocol. Physical Layer" (PDF). Retrieved 2017-05-22.
- ^ CCSDS Proximity-1 Communications Protocol Enables High-Speed Communication at Mars
- ^ "Phoenix Mars Mission FAQ". Retrieved 2008-05-26.