现代雷达2012，Vol.34Issue(6)：49-53,5.
一种调频步进频雷达高速目标成像的新算法
A New Method for Imaging of High Speed Target Using Chirp-subpulse Stepped-frequency Radar
苏峰 1杨松 2牟建超 3赵莉芝3
作者信息
- 1. 南京电子技术研究所, 南京210039
- 2. 中国人民解放军驻南京电子技术研究所军事代表室, 南京210039
- 3. 北京理工大学电子工程系, 北京100081
- 折叠
摘要
Abstract
Chirp-subpulse stepped-frequency signal is proved to be useful for radar ISAR imaging.A new method for chirp-subpulse stepped-frequency radar to get ISAR images of high speed target in low SNR situation is proposed in this paper.Keystone transform is firstly applied on pulses with same carrier frequency to eliminate range migration,and coherent accumulation is performed to gain high SNR,resultingly translational velocity of moving target is precisely estimated and velocity compensation is effectively implemented,then range-dimension synthetical high resolution is obtain through stepped-frequency process,ISAR imaging quality is improved via above processes.This method is demonstrated effective by theoretic analysis and computer simulation.关键词
步进频/调频步进频/距离走动/Keystone变换/高速目标成像Key words
stepped-frequency/chirp-subpulse stepped-frequency/range migration/Keystone transform/high speed target imaging分类
信息技术与安全科学引用本文复制引用
苏峰,杨松,牟建超,赵莉芝..一种调频步进频雷达高速目标成像的新算法[J].现代雷达,2012,34(6):49-53,5.
