脉间变频格式高距离向分辨力成像方法中系统误差的研究

Research on System Error of High Range Resolution Imaging by Means of Pulse to Pulse Frequency Shifting

本文介绍一种脉间变频格式实现离距离向分辨力（ＨＲＲ）成像方法。根据工程设计的实际需要，对脉间主频误差、正交解调误差系统误差的影响进行了分析和计算机仿真实验。给出了仿真结果及某些误差的数量关系。

A Scheme of radar image for achieving high range resolution is presented.The high resolution is achieved by processing a carrier with frequency kept constant wrthin each pulse ,but frequency shifted from pulse to pulse by a fixed frequency step size. According to the requirement of engineering design,the effects of system errors including frequency error and the error from the quadrature demodulation are analysed and experiment simulated with computer.A series of simulation results and quantitative relationships with some error are given.