项目名称: 脉冲无源双基地SAR成像算法研究与实验验证
项目编号: No.61471380
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 无线电电子学、电信技术
项目作者: 蔡复青
作者单位: 中国人民解放军海军航空大学
项目金额: 74万元
中文摘要: 脉冲制无源双基地雷达是基于非合作脉冲雷达辐射源的无源探测系统,其利用两个或多个接收通道处理来自一个或多个非合作发射台的直达波和目标散射信号,以实现目标的定位与跟踪。该体制雷达具有成本低廉、生存能力强等优点,在未来战场中将发挥重要作用。 目前,基于脉冲雷达辐射源的无源双基地雷达系统尚处于探索阶段,仍有大量的技术问题尚未解决。本项目将重点围绕脉冲制无源双基地雷达基础理论与关键技术展开研究,主要内容包括复杂工作方式下的非合作辐射源参数实时获取与同步技术,天线扫描旁瓣影响消除与直达波脉冲复包络估计技术,直达波、多路径干扰消除与双基地杂波抑制技术,微弱目标脉冲相关检测与参数估计技术,以及非合作双基地SAR 成像机理与成像算法等方面问题,为将来的系统实用化奠定基础。
中文关键词: SAR;成像算法;双基SAR
英文摘要: Passive bistatic radar system using non-cooperative pulse radar illuminators is a new radar system that has double-channel or multi-channel to process direct path signal from one or several non-cooperative transmitters and scattering signal of target, and obtains location information about targets. This radar system has characteristics of low cost and strong ability to survive, so it will play an important role in the future battlefield. Currently, the non-cooperative bistatic radars based on pulse radar illuminators are under investigation, and there are a number of technical problems unsolved. The project will focus on the basic theory and key technology of the radar system. The main research includes the non-cooperative illuminator parameters intercepted and synchronization in the complex working mode, antenna scanning side-lobe influence to eliminate, direct-path wave complex envelop estimation, direct-path and multipath interference elimination, bistatic clutter supperssion, cross-correlation detection and parameter estimation of weak targets, and non-cooperative bistatic SAR techniques, etc. The project is expected to lay a foundation for further development of practical systems.
英文关键词: SAR;Imaging method;Bisatic SAR