Rocket-borne environmental data processing for launch vehicle telemetry system

With the rapid growth in the amount of environmental data from launch vehicle, it is a key problem to send them to the ground station by the present wireless communication system. A new launch vehicle telemetry system scheme with an independent sub-system of environmental measurement is designed, which could analyze environmental data on rocket and then sends analysis results instead of original measurement data to the ground station during the flight tests. And a method of overlapping data segmentation is presented for solving the error-accumulation problem caused by calculating the shock response spectra during the whole flight. Besides, the rocket-borne optimal process parameters of the acoustic noise, shock and vibration are obtained by simulation combined hardware resources and system capacity. Lastly, a rocket-borne processor is developed. Flight tests show the shock, vibration and acoustic noise measurement accuracy is improved about 5 times and the dynamic range of measurement is expanded 24 dB, and moreover, data compression ratios are about 33:1, 69:1, 16:1 respectively.