Airborne shock response spectra analyzer based on FPGA

• Published in: 20th International Congress on Instrumentation in Aerospace Simulation Facilities, 2003. ICIASF '03 pp. 224 - 227
• Main Authors: Chen De-Rong, Li Xiang-Bin
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2003
• Subjects: Accelerometers; Electric shock; Field programmable gate arrays; Information analysis; Real time systems; Satellite ground stations; Signal analysis; Space vehicles; System testing; Telemetry
• DOI: 10.1109/ICIASF.2003.1274871
• ISBN: 0780381491; 9780780381490

How to get enough shock environment information with limited system capacity is a key problem in space vehicle telemetry. In this paper, an airborne shock response spectra analyzer is developed based on FPGA which can real time calculate peak response spectra on board and then sending it to the ground station instead of the signal form three-axis accelerometer during the flight test. Flight test shows the analyzer can effectively compress the shock data and get enough shock environment information with limited system capacity. Moreover, the compression ratio of shock data can be flexibly adjusted according to the telemetry system capacity and real-time requirement of measurement, and some design parameters can be changed on-line. Therefore the analyzer has good applicability.