脉间变频格式高距离向分辨力成像的研究

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

介绍一种用脉间变频格式实现高距离向分辨力（ＨＲＲ）的成像方法，讨论其基本原理及系统多数设计。根据工程设计的实际需要，对目标速度、脉间变频误差、正交解调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 within each pulse, but frequency shifted from pulse to pulse by a fixed frequency step size,The principle of this technique and the contents of all parameters involved in the imaging system are discussed.According to the requirement of engineering design, the effects of target velocity,frequency error and the error from the quadrature demodultion are analysed and experi- ments are simulated with computer.A serica of simulation results and quantitative relationships with some erros are given.