A Propagator Method for Bistatic Coprime EMVS-MIMO Radar. (19th May 2021)

• Record Type: Journal Article
• Authors: Yang, Yongqiang; Ruan, Ningjun; Huang, Guanjun; Shi, Junpeng; Wen, Fangqing
• Other Names: Wang Ding Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2021(2021)
• Publication Date: 2021-05-19
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2021/9954573
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : In this paper, a novel two-dimensional (2D) direction-of-departure (DOD) and 2D direction-of-arrival (DOA) estimate algorithm is proposed for bistatic multiple-input multiple-output (MIMO) radar system equipped with coprime electromagnetic vector sensors (EMVS) arrays. Firstly, we construct the propagator to obtain the signal subspace. Then, the ambiguous angles are estimated by using rotation invariant technique. Based on the characteristic of coprime array, the unambiguous angles estimation is achieved. Finally, all azimuth angles estimation is followed via vector cross product. Compared to the existing uniform linear array, coprime MIMO radar is occupying large array aperture, and the proposed algorithm does not need to obtain signal subspace by eigendecomposition. In contrast to the state-of-the-art algorithms, the proposed algorithm shows better estimation performance and simpler computation performance. The proposed algorithm's effectiveness is proved by simulation results.