The process is dealing with the echo by wavelet transform, obtaining 3D-time-fre- quency distribution and power spectral density, extracting modulating spectral density, then identifying target.

• 对雷达回波信号进行小波变换，得到目标回波信号的三维时频分布图和功率谱密度，从中提取目标的调制谱密度，根据最小贴近度识别算法进行目标识别。