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Research Article

Brightness temperature calculation of corner reflector on the sea surface and analysis of its jamming on ship recognition in passive millimetre-wave

Wenning XuResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaView further author information
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Liangqi GuiResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaCorrespondence[email protected]
View further author information
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Jiawen HuangResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaView further author information
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Zhihao ZhangResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaView further author information
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Zhiqi ZhangResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaView further author information
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Liang LangResearch Center of 6G Mobile Communications, School of Cyber Science and Engineering and School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaView further author information
Received 12 Feb 2024, Accepted 08 Jun 2024, Published online: 22 Jul 2024
 
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Abstract

Corner reflector, as a passive jammer, can generate a large radar cross section (RCS) to interfere with radar for target recognition. However, the impact of corner reflectors on passive millimetre-wave (PMMW) recognition is unclear. In this paper, based on ray tracing, the brightness temperature (TB) of corner reflectors is calculated. Ray tracing paths are used to analyze the impact of the sky, sea surface, and sun on the TB of corner reflectors. The antenna temperature of corner reflectors and their array at different distances is simulated and compared with that of a metal ship to evaluate their jamming performance. Four series of experiments measuring the antenna temperature of corner reflectors and the ship are conducted to verify the jamming performance. The results indicate that the contrast of corner reflectors is much smaller than that of ship target, causing little jamming for PMMW recognition.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Foundation of National Key Laboratory of Science and Technology on Space Microwave [grant number HTKJ2021KL504010].

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