随机粗糙面穆勒矩阵的数值分析

Lu, 杨璐 Yang; Qian, 佟倩 Tong; Zhiyin, 周芷茵 Zhou; Siyuan, 何思源 He; Zhe, 宋哲 Song

doi:10.3788/lop220705

激光与光电子学进展

2023

DOI: 10.3788/lop220705

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随机粗糙面穆勒矩阵的数值分析

杨璐 Yang Lu¹,

佟倩 Tong Qian²,

周芷茵 Zhou Zhiyin³

et al.

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2024

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太赫兹低频段粗糙目标的表面散射及成像特性研究

Chai Xinyue,

Hu Hao,

Hu Xiaoxue

et al. 2024

激光与光电子学进展

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Target surface scattering characteristics are the physical basis of terahertz waves used in radar imaging and target recognition and location. The main factors affecting target surface scattering characteristics are the target material and surface roughness. This study uses metal aluminum as an example and fits the Drude model parameters of aluminum at 0. 1 THz. Based on the fitting results, the scattering coefficient of a Gaussian random rough aluminum surface is analyzed using Kirchhoff approximation (KA) method. Subsequently, Monte -Carlo rough targets with different roughness are modeled, and the radar scattering crosssection (RCS) is calculated to image the twodimensional inverse synthetic aperture radar (ISAR). The research results show that the target RCS simulation results are consistent with KA theory analysis, that is, surface roughness is negatively correlated with RCS at a small pitch angle, whereas surface roughness is positively correlated with RCS at a large pitch angle. In addition, in a certain rough range, as the surface roughness increases, the scattering center of the target surface increases, and the ISAR image forms a dense "speckle" effect, which can better reflect the shape and structure of a target.

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太赫兹低频段粗糙目标的表面散射及成像特性研究

Chai Xinyue,

Hu Hao,

Hu Xiaoxue

et al. 2024

激光与光电子学进展

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

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随机粗糙面穆勒矩阵的数值分析

Cited by 1 publication

References 14 publications

太赫兹低频段粗糙目标的表面散射及成像特性研究

太赫兹低频段粗糙目标的表面散射及成像特性研究

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