Integrated Gps/ins/star Tracker Space Navigation System Using a Software Defined Radio
نویسندگان
چکیده
NAVSYS Corporation has developed a design and prototype of a flexible, high performance, miniaturized, space-based Software GPS Receiver (SSGR) based on a Software Defined Radio (SDR) architecture that optimally combines GPS, INS, and star-tracker inputs to provide a flexible, integrated precision navigation and attitude determination solution for space applications including LEO, HEO and GEO missions. Working jointly with Microcosm, Inc., we have prototyped and tested this capability with a miniaturized star-tracker developed specifically for microsatellite applications. In this paper we present a system design, analysis, and test results for the integrated SSGR navigation system. The filter design for the optimal integration of GPS, INS, and star-tracker measurements are presented along with simulation results that show predicted performance. As part of the test and simulation effort, the NAVSYS Advanced GPS Hybrid Simulation (AGHS) capability was used to simulate the space environment. Receiver test results using the AGHS will be presented to validate performance predictions and demonstrate the benefits of the combined GPS, INS, and star-tracker approach.
منابع مشابه
Gps/ins/star Tracker Navigation Using a Software Defined Radio
NAVSYS Corporation and Microcosm, Inc., have jointly developed a design for a flexible, high-performance, miniaturized, space-based Software GPS Receiver (SSGR) based on a Software Defined Radio (SDR) architecture that optimally combines GPS, INS, and star-tracker inputs to provide a flexible, integrated precision navigation and attitude determination solution for space applications. The SSGR i...
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