quotation:[Copy]
[Copy]
【Print page】 【Download 【PDF Full text】 View/Add CommentDownload reader Close

←Previous page|Page Next →

Back Issue    Advanced search

This Paper:Browse 3835   Download 2890  
弹载SAR宽域成像的扫描参数设计
唐海云,赵大志,杨勇,罗懋康
0
(四川大学 数学学院,成都 610065;中国西南电子技术研究所,成都 610036)
摘要:
针对弹载条带合成孔径雷达(SAR)在末制导阶段由于波束覆盖范围窄和成像时间短,不易获 得所 要求的大面积图像的问题,提出了一种新的波束扫描方案,并根据导弹在末制导阶段的飞行 特点,结合子孔径处理方法,对波束扫描参数进行了理论分析和设计。仿真结果表明,与条 带SAR相比,该扫描SAR能有效地在较短的数据录取时间内获得大面积的SAR图像。
关键词:  弹载合成孔径雷达  宽域成像  子孔径处理  波束扫描
DOI:
基金项目:国家自然科学基金重点资助项目(10731050);教育部长江学者及 创新团队发展计划资助项目(IRT00742)
Design of Beam Scanning Parameter for Missile borne SAR Wide Area Imaging
TANG Hai-yun,ZHAO Da-zhi,YANG Yong,LUO Mao-kang
(College of Mathematics, Sichuan University, Chengdu 610065, China;Southwest China Institute of Electronic Technology, Chengdu 610036, China)
Abstract:
It is difficult for missileborne stripmap SAR to gain the required widespr ead image in the terminal guidance because of narrow beam coverage and short ima ging time.To solve the problem,a new scheme of beam scanning is proposed. And beam scanning parameter is theoretically analysed and designed, according to th e flight features of missile in the terminal guidance and combined with subapert ure processing. The simulation result shows that the proposed scan SAR can effec tively gain widespread image in the short time of rawdatarecording, compared with stripmap SAR.
Key words:  missile borne SAR  wide area imaging  subaperture processing  beam scanning