基于keystone变换的宽带雷达精确测速  

Accurate-velocity-measurement method for wideband radar based on keystone transform

作　　者：曹宇飞[1] 屈晓光[1] 黄培康[1] 

机构地区：[1]中国航天科工集团第二研究院23所,北京100854

出　　处：《系统工程与电子技术》2009年第1期1-4,共4页Systems Engineering and Electronics

摘　　要：宽带雷达利用脉冲串测速时,高速运动目标在脉冲串内通常移动超过多个距离分辨单元,无法通过脉冲串内直接相参处理获取速度信息。针对宽带脉冲多普勒雷达测速的特点,提出了一种基于Keystone(楔石)变换的测速方法,能有效解决目标越距离单元走动和多普勒谱展宽,并根据该方法的特点,提出一种基于Keystone变换的解速度模糊的方法,仿真证明该测速方法能达到很高的测速精度,有很高的应用价值。In wideband radar, high-velocity targets usually move through several range resolution cells, which is troublesome to estimate target＇s velocity. An accurate velocity-measurement method for wideband PD radar based on keystone transform is proposed. The method can deal with target＇s range migration and target＇s Doppler spectra broadening. The simulation shows that it can achieve very accurate velocity estimation. So the method is very practical in wideband radar.

关 键 词：宽带雷达 楔石变换 精密速度测量 解速度模糊 

分 类 号：TN957.51[电子电信—信号与信息处理]