直升机载雷达频域成像算法

doi:10.3969/j.issn.1001-2400.2016.04.018

西安电子科技大学学报 ›› 2016, Vol. 43 ›› Issue (4): 100-104.doi: 10.3969/j.issn.1001-2400.2016.04.018

直升机载雷达频域成像算法

文珺1,2,3;杨科4;赵进创1;邹星星1;覃团发1,2,3

(1. 广西大学计算机与电子信息学院，广西南宁 530004;
2. 广西大学广西多媒体通信与网络技术重点实验室培育基地，广西南宁 530004;
3. 广西大学广西高校多媒体通信与信息处理重点实验室，广西南宁 530004;
4. 上海无线电设备研究所，上海 200090)

收稿日期:2015-03-26 出版日期:2016-08-20 发布日期:2016-10-12
作者简介:文珺(1984-)，女，副教授，E-mail: wenjun0511@163.com．
基金资助:
国家自然科学基金资助项目(61461007)；广西自然科学基金资助项目(2015GXNSFBA139248)；广西大学科研基金资助项目(XJZ140394)

Imaging algorithm in the frequency domain for helicopter-borne radar

WEN Jun1,2,3;YANG Ke4;ZHAO Jinchuang1;ZOU Xingxing1;QIN Tuanfa1,2,3

(1. School of Computer ＆ Electrical Information, Guangxi Univ., Nanning 530004, China;
2. Guangxi Key Lab. of Multimedia Communications and Network Technology (Cultivating Base), Guangxi Univ., Nanning 530004, China;
3. Guangxi Colleges and Universities Key Lab. of Multimedia Communications and Information Processing, Guangxi Univ., Nanning 530004, China;
4. Shanghai Radio Equipment Research Institute, Shanghai 200090, China)

Received:2015-03-26 Online:2016-08-20 Published:2016-10-12

摘要/Abstract

摘要：

直升机载雷达具有全视域成像、重访周期短等优点，能有效保障直升机等旋翼飞行器的低空飞行安全．针对现有的成像算法存在方位向失配问题，提出了直升机载雷达频域成像算法，通过对直升机载雷达回波进行频域特性分析，从而获取二维精确频谱，并构建频域校正函数和匹配函数，实现回波数据的匹配成像．仿真实验验证了文中算法的有效性．

关键词: 直升机载雷达, 频域分析, 方位聚焦

Abstract:

Helicopter-borne Radar (HeliRadar) has the advantages of full-perspective imaging and short revisit period, which can ensure the rotor aircrafts flight safety at the low altitude. In order to solve the azimuth mismatch problem of the existing algorithm, the HeliRadar imaging algorithm in the frequency domain is presented in this paper. Through the frequency domain analysis of the characteristics of the HeliRadar echo, this new algorithm can obtain a two-dimensional accurate spectrum, construct the frequency domain correction function and the matching function, and achieve the matching imaging. Simulation results verify the effectiveness of the algorithm.

Key words: helicopter-borne radar, frequency-domain analysis, azimuth focusing

文珺;杨科;赵进创;邹星星;覃团发. 直升机载雷达频域成像算法[J]. 西安电子科技大学学报, 2016, 43(4): 100-104.

WEN Jun;YANG Ke;ZHAO Jinchuang;ZOU Xingxing;QIN Tuanfa. Imaging algorithm in the frequency domain for helicopter-borne radar[J]. Journal of Xidian University, 2016, 43(4): 100-104.

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直升机载雷达频域成像算法

Imaging algorithm in the frequency domain for helicopter-borne radar

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