Scaled radar cross section measurement method for lossy targets via dynamically matching reflection coefficients in THz band

doi:10.1088/1674-1056/ac474b

Abstract In the terahertz band, the dispersive characteristic of dielectric material is one of the major problems in the scaled radar cross section (RCS) measurement, which is inconsistent with the electrodynamics similitude deducted according to the Maxwell's equations. Based on the high-frequency estimation method of physical optics (PO), a scaled RCS measurement method for lossy objects is proposed through dynamically matching the reflection coefficients according to the distribution of the object facets. Simulations of the model of SLICY are conducted, and the inversed RCS of the lossy prototype is obtained using the proposed method. Comparing the inversed RCS with the calculated results, the validity of the proposed method is demonstrated. The proposed method provides an effective solution to the scaled RCS measurement for lossy objects in the THz band.

Keywords: scaled measurement method radar cross section lossy targets terahertz

Received: 26 October 2021
Revised: 17 December 2021
Accepted manuscript online: 31 December 2021

PACS:	87.50.U-
	84.40.Xb	(Telemetry: remote control, remote sensing; radar)
	94.30.Tz	(Electromagnetic wave propagation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61871386, 61971427, 62035014, and 61921001) and the Natural Science Fund for Distinguished Young Scholars of Hunan Province, China (Grant No. 2019JJ20022).

Corresponding Authors: Yang Zeng
E-mail: zengyang@nudt.edu.cn

Cite this article:

Shuang Pang(逄爽), Yang Zeng(曾旸), Qi Yang(杨琪), Bin Deng(邓彬), and Hong-Qiang Wang(王宏强) Scaled radar cross section measurement method for lossy targets via dynamically matching reflection coefficients in THz band 2022 Chin. Phys. B 31 068703

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Scaled radar cross section measurement method for lossy targets via dynamically matching reflection coefficients in THz band

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