某雷达高距离分辨原理及其目标射频模拟

首先简要介绍了实现距离高分辨的方法，进而分析了脉内调频脉间跳频实现距离高分辨的原理。以实际工作波形为基础，分析了点目标及延续目标的回波表达式，得到了理想脉压系统不影响回波信号的相位信息及对回波信号多个回波进行逆傅氏变换能够得到合成高距离分辨力的结论。最后探讨了目标射频模拟器的设计与实现，并给出了一些实测数据。

The Basic Principle of a Radar System With High Range Resolution and the Realization of Its Transmitted Signal Simulator

First, a few of ways to realize the high range resolution arebriefly introduced in this paper. Next, the principle of using inter-intro FM technique to achieve high range resolution is given in detail. On the basis of a practical working form, the echo equations of a point target and extended target have been derived. The conclusions that an ideal pulse compression system doesn′t affect echo′s phase information and performing IFFT to multiple echo′s signals can get synthetic high range resolution can be obtained. At last, the design and realization of the transmitted signal modulator are analyzed and some test results are shown.