吴锋1,
徐伟2
1.信阳农林学院信息工程学院 信阳 464000
2.内蒙古工业大学信息工程学院 呼和浩特 010051
基金项目:河南省科技攻关项目(172102210450, 182102210533, 182102110160)，河南省高等学校重点科研项目(18B520035)
详细信息
作者简介:王同军：男，1985年生，讲师，研究方向为交通环境智能感知、高速信息处理、物联网应用
吴锋：男，1981年生，讲师，研究方向为信号处理、无线数据通信、物联网技术
徐伟：男，1983年生，教授，研究方向为新体制雷达系统、微波遥感应用
通讯作者:王同军 xy_wangtj@126.com
中图分类号:TN951计量
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被引次数:0
出版历程
收稿日期:2019-08-13
修回日期:2020-02-23
网络出版日期:2020-03-21
刊出日期:2020-08-18
A Novel Imaging Approach for Improving Azimuth Angular Resolution of Automotive Radars
Tongjun WANG1,,,Feng WU1,
Wei XU2
1. College of Information Engineering, Xinyang Agriculture and Forestry University, Xinyang 464000, China
2. College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Funds:The Scientific and Technological Project in Henan Province (172102210450, 182102210533, 182102110160), The Key Scientific Research Projects in Institutions of Henan Higher Learning (18B520035)
摘要
摘要:针对汽车雷达方位角分辨率受方位向天线长度限制的问题，该文提出一种基于多波束实孔径雷达图像融合来提升汽车雷达方位角分辨率的成像方法。该方法首先利用相控阵天线波束电扫描来获取前视实孔径雷达图像，然后根据汽车雷达成像几何关系通过多张多角度实孔径雷达图像相参累加来提升雷达方位角分辨率。计算机仿真结果验证了该方法在提升汽车雷达方位角分辨率的有效性。
关键词:汽车雷达/
前视成像/
合成孔径/
后向投影算法
Abstract:As the azimuth angular resolution is limited by the antenna length in automotive radars, a novel imaging approach for improving azimuth angular resolution of automotive radars is proposed based on multi-beam real-aperture radar images combination processing. Firstly, the antenna beam of the phased array antenna is electronically scanned to obtain forward-looking real-aperture radar images. Afterwards, multiple real-aperture radar images are coherent accumulated according to the imaging geometry of automotive radar to improve azimuth angular resolution. Simulation results validate the proposed imaging approach to improve the azimuth angular resolution of automotive radar.
Key words:Automotive radars/
Forward-looking imaging/
Synthetic aperture/
Back projection algorithm
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