A Modified StepTransform Algorithm Based on CZT and Its Application to LFM Pulse Compression
基于CZT变换的StepTransform算法在脉冲压缩中的应用

A new modified StepTransform algorithm based on CZT is provided in this paper in order to compensate for the insufficiencies of the traditional StepTransform algorithm. The order of the traditional StepTransform algorithm is changed by FFT for the fine resolution analysis on the first stage and CZT for the coarse resolution analysis on the second stage. The phenomenon of grating lobes and amplitude modulation is avoided and ideal LFM pulse compression result can be gotten in this new method. The validity and feasibility of the new algorithm is tested by the deduction of the formulation and simulation of the theory.