弹载探测系统中目标回波信号的循环平稳特性分析

The Analysis on the Cyclostationarrity of Target Signal in Missile-borne Detective System

通过对弹载探测系统中发射信号与目标回波信号的循环平稳特性进行分析 ,指出在一定条件下 (数据长度不是太长 ) ,可以认为信号的循环频率经传输后不发生变化 ,可以利用信号的循环平稳特性获得较好的噪声抑制性能 ,实现对目标回波信号的提取及参数估计。

This paper gives a detailed analysis of the cyclo stationarity of active signals and target reflecting signals in the missile borne detective system. It is presented that under the condition of limited data length, the target reflecting signal remains the same cyclic frequency with the active signal. By using the cyclo stationarity of target signals, a superior performance of noise suppression and target recognition can be obtained.