Radar High-Resolution Range Profile (HRRP) is very sensitive to time-shift;therefore, HRRP-based Radar Automatic Target Recognition (RATR) requires efficient time-shift invariant features.

• 针对雷达自动目标识别(RATR)中高分辨距离像(HRRP)的平移敏感性，从HRRP中提取出一种新的距离像平移不变特征：距离像幅度谱差分。