Nonuniform Frequency Diverse Array for Range-Angle Imaging of Targets

被引：119
作者：
Wang, Wen-Qin [1 ,2 ]
So, H. C. [1 ]
Shao, Huaizong [2 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Commun & Informat Engn, Chengdu 611731, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2014年 / 14卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Frequency diverse array (FDA); range estimation; angle estimation; array processing; 2-D imaging; FDA radar; beamforming; WAVE-FORM; SAR;
D O I：
10.1109/JSEN.2014.2304720
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Although phased-array antennas are widely used in communication, radar, and navigation systems, its beampattern is a function of angle only and thus there is no range information. To circumvent this limitation, we design a frequency diverse array (FDA) antenna system for range-angle imaging of targets. Our approach exploits the nonuniform FDA as the transmitter to provide range-dependent beampattern and the uniform phasedarray as the receiver which results in angle-dependent beampattern. Range-angle imaging of targets is achieved from the cooperative transmit-receive beamforming. The imaging performance measures including spatial resolution and system processing gain are analyzed. In addition, several design specifications are discussed. The effectiveness of the proposed approach is verified by simulation results.
引用
收藏
页码：2469 / 2476
页数：8
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