环境一号C卫星SAR闭环测试系统的设计与实现  

Design and Implementation of HJ-1-C Satellite SAR Closed-Loop Test System

作　　者：张华春[1] 岳海霞[1] 禹卫东[1] 

机构地区：[1]中国科学院电子学研究所,北京100190

出　　处：《数据采集与处理》2014年第4期654-660,共7页Journal of Data Acquisition and Processing

基　　金：国家重大科技专项工程资助项目

摘　　要：环境一号C(HJ-1-C)卫星合成孔径雷达系统测试中,构建闭环测试系统,模拟卫星星地信号传输过程,实现SAR系统成像功能、压缩方式和点目标特性的测试。本文首先给出SAR回波信号的产生以及回波模拟器的物理实现,然后提出在有线和无线两种方式下,利用回波模拟器构建SAR闭环测试系统的方法,最后给出基于该闭环测试系统,对HJ-1-C SAR系统点目标性能指标测试结果。测试结果表明,该闭环测试系统的构建,能够满足HJ-1-C SAR系统的测试需要。The synthetic aperture radar （SAR） closed-loop test system is constructed to simulate ground-satellite signal transmission process for obtaining SAR system imaging function,compression mode and point target characteristics.Those are of great significance during HJ-1-C SAR system test.Firstly,the paper presents the SAR echo signal generation and the physical implementation of echo simulator,and then provides methods to build SAR closed-loop test systems using echo simulator under wired and wireless manner.Finally,the paper gives the point target performance results of HJ-1-C SAR system based on the closed-loop test system.Test results show that the closed-loop test system meets the testing needs of HJ-1-C SAR system and has good engineering application value.

关 键 词：合成孔径雷达 HJ-1-C卫星 闭环测试系统 回波信号模拟 

分 类 号：TN958[电子电信—信号与信息处理]