High-accuracy height-measuring algorithm for low-altitude penetration aircrafts based on LFMCW radar
Gao Yong · Systems engineering and electronics · 2011
To obtain instantaneous height information on time is one of the key techniques of the low-altitude penetration aircraft,so realizing the height measurement with short-time integration is an operational requirement.However short-time brings low accuracy in height finding and weak anti-jamming ability.To solve this problem,a short-time integration algorithm based on data reconstruction within segment and coherence accumulation among segments is proposed.This algorithm can improve the accuracy in height finding and its anti-jamming ability in effective.The algorithm implementation process is introduced,and the proposed algorithm has an advantage in height finding and anti-jamming compared with the traditional height-measuring algorithm based on linear frequency modulated continuous wave(LFMCW) radar.The simulation results verify the theoretical analysis result and the algorithm efficiency.