Real Micro-Doppler Parameters Extraction of Spinning Targets Based on Rotating Interference Antenna

作     者：Wang, Zhihao Chen, Yijun Yuan, Hang Luo, Ying Zhang, Qun 

作者机构：Air Force Engn Univ Informat & Nav Coll Xian 710077 Peoples R China Xidian Univ Natl Lab Radar Signal Proc Xian 710071 Peoples R China Engn Univ PAP Coll Informat Engn Xian 710086 Peoples R China 

出 版 物：《REMOTE SENSING》 (遥感)

年 卷 期：2022年第14卷第21期

页      面：5300-5300页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1002[医学-临床医学] 070801[理学-固体地球物理学] 07[理学] 08[工学] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 

基　　金：postgraduate innovation practice foundation of Air Force Engineering University [CXJ2021073] National Nature Science Foundation of China [61971434, 62131020] 

主　　题：rotating interference antenna spinning targets micro-Doppler parameters extraction OMP algorithm 

摘      要：Micro-Doppler is a unique characteristic of targets with micro-motions, which can provide significant information for target classification and recognition. However, the monostatic radar has the shortcoming of only obtaining the radial micro-motion characteristics. Although the vortex-electromagnetic-wave-based radar has the potential to obtain real micro-motion parameters, it has a high dependence on the mode number and purity of the orbital angular momentum, which greatly restricts its application in the micro-motion parameter extraction. To overcome the above problems, a new radar configuration based on the rotating interference antenna is proposed in this paper. Through the interference processing of the micro-Doppler curves of the rotating and fixed antenna, the curves containing the real micro-motion information of the target can be obtained. Then the real micro-motion characteristics of the spinning target can be reconstructed by the orthogonal matching pursuit algorithm. The effectiveness and robustness of the proposed method are validated by simulations.