高度表宽多普勒频宽回波研究

摘要

分析了PD雷达高度表的地回波特性。总结了高度表的工作特征,通过网格映像法借助数字地图思想建立了地面的距离-多普勒关系。考虑回波的影响因素,如散射系数、天线模型等,通过Matlab建模仿真分析了高度表回波的时域和频域特征。研究结果对研制和地面测试弹载雷达高度表提供了技术支持。%This paper analyzes the features of the PD radar altimeter.It summarizes the performance characteristics of the altimeter.Based on the idea of the digital map,it sets up the ground distance-doppler relation by the grid method.Considering the effects of the crossing factor,such as the scattering parameter and antenna model,a simulation model is built with Matlab,which can analyze the features of the time-zone and frequency-zone.The result can provide technical support to the development and test of the altimeter for missiles.