Abstract:

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.