关键词: PD雷达, 网格映像法, 数字地图, 宽多普勒带宽, 建模与仿真

Abstract:

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.

Key words: PD radar;grid method;digital map;wide doppler frequency band;modeling and simulation