Micro-Doppler Modulation of Space Target Based on Passive Interrupted Sampling

被引：5
作者：
Zhu, Yiqi [1 ]
Xu, Zhiming [1 ]
Ai, Xiaofeng [1 ]
Wu, Qihua [1 ]
Zhao, Feng [1 ]
机构：
[1] Natl Univ Def Technol, State Key Lab Complex Electromagnet Environm Effec, Changsha 410073, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2024年 / 24卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Modulation; Scattering; Vectors; Sensors; Frequency modulation; Target recognition; Metasurfaces; Automatic target recognition; interrupted-sampling modulation (ISM); jamming; micro-Doppler (mD); ISAR;
D O I：
10.1109/JSEN.2024.3390801
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：
The micro-Doppler (mD) features have attracted significant attention in space target recognition. Consequently, changing the mD features is a viable approach to achieve antirecognition for space targets. Passive interrupted-sampling modulation (PISM) technology is renowned for its significant effect on altering the imaging features of targets. In this article, an mD modulation algorithm utilizing PISM for space targets is proposed, which can produce false components not only in high-resolution range profiles but also in the time-frequency distribution (TFD). Additionally, the principle of the false components produced by the algorithm is analyzed. At last, the proposed algorithm and analysis are validated through simulation and anechoic chamber measurements. The feature extraction results verify the antirecognition effect on the micromotion target.
引用
收藏
页码：18141 / 18153
页数：13
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