提出一种改进的调制型高斯小波分析方法，探索了毫米波雷达步进频率信号小波变换当中小波尺度与目标距离的对应关系，可进行任意距离范围和步进的功率谱分析，并提出目标分阶段的成像方法。该方法与一般小波变换相比减少了运算量，同时获得较为精确的一维距离像，从而更有利于目标定位与跟踪。

An improved method based on the wavelet transform and its power spectrum is proposed in this paper. The multirates peculiarity of stepped frequency waveform is proved, and the relationship between the wavelet scaling and the target distance is identified. Based on the theory, the wavelet power spectrum analysis is applied to obtain the target range profile. The result brings out the exactness and low computational complexity of this method.

TN951