多普勒频谱及JEM效应在空中目标识别中的应用分析

为了获取进行空中目标识别的有效特征量,分析了多普勒频谱结构识别、调制谱识别和JEM周期特征识别等方法.采用将相位和幅度综合的方法,获得了更接近理论值的JEM周期平均值特征量,仿真结果说明综合特征量具有较小的估计标准差.最后,指出了该领域可能的研究方向.

Analysis of Doppler Spectrum and JEM Effect in Air Target Recognition

In order to get the more effective characters in Air Target Recognition, the methods such as doppler spectrum structure discrimination, modulation spectrum separation and JEM cycle character recognition are mainly discussed. We also proposed a new method by synthesizing phase and amplitude to deal with the JEM spectrum data, experiment showed that the result of ours is more close to theoretical value and has a smaller estimate Variance. In the end, several possible hotspots for the classification of air tar...