UHF RELAY PERFORMANCE DURING THE ENTRY DESCENT AND LANDING OF THE MARS SCIENCE LABORATORY

摘要

This paper discusses the MSL telecommunications configuration for UHF relaydata during EDL, as well as the configuration of NASA's Mars ReconnaissanceOrbiter and Mars Odyssey. Actual link performance will be compared toa priori predictions including signal strength, Doppler shift, UHF plasmablackout, and the range and angles between MSL and UHF relay assets. Predictionswere generated using telecom link budgets and models developed atJPL. These data were also integrated into MSL's primary end-to-end EDL performancesimulation, NASA Langley's Program to Optimize Simulated TrajectoriesⅡ (POST2), which enabled telecom predictions based on Monte Carloresults of EDL simulations.