组合角反射体极化模型构建与分析

doi:10.12305/j.issn.1001-506X.2026.02.01

摘要/Abstract

摘要：

角反射器是海面战场上重要的无源干扰装备，对角反射器散射特性的准确认知是无源干扰对抗博弈的基础。针对组合角反射器雷达散射截面积（radar cross section，RCS）和极化散射特性认知不足等问题，提出一种基于物理光学法的组合角反射体RCS模型。在此基础上，重点分析二十面体的极化特性，推导偏离奇次散射特性情况下方位角与俯仰角的解析表达式，并提出立体保极化角域的计算方法，分析二十面角反射体和舰船目标的差异。通过与电磁仿真软件结果的对比分析可知，所提RCS模型得到的八面体和二十面体RCS均值误差分别为3.2 dBsm和7.1 dBsm，所提极化散射特性模型得到的二次散射对应角度与仿真结果基本一致。所提方法可用于快速分析复杂组合角反射器的散射特性，为后续角反鉴别应用提供基础。

关键词: 角反射器, 八面体, 二十面体, 极化, 散射模型

Abstract:

Corner reflector is an important passive jamming equipment in the sea battlefield, and an accurate understanding of its scattering characteristics is the foundation of jamming confrontation. To address the insufficient understanding of the radar cross section (RCS) and polarimetric scattering characteristics of combined corner reflector, a RCS model for combined corner reflector based on the physical optics method is proposed. On this basis, the polarization characteristics of the icosahedron is analyzed and the analytical expression of the azimuth and pitch angle where the scattering deviate from the odd scattering is deduced. Moreover, a calculation method of the consistent-polarization solid angle domain is proposed, and the differences between the icosahedral corner reflector and ship target is analyzed. Through the comparison with the results of electromagnetic simulation software, the mean RCS errors of octahedron and icosahedron obtained by the proposed RCS model are 3.2 dBsm and 7.1 dBsm, respectively. The angle corresponding to the double scattering obtained by the proposed polarization scattering characteristic model is basically consistent with the simulation results. The proposed method can be used to quickly analyze the scattering characteristics of the combined corner reflectors and provide the basis for the application of corner reflector discrimination.

Key words: corner reflector, octahedral, icosahedral, polarization, scattering model

中图分类号:

TN 974

吴国庆, 王罗胜斌, 王平, 宋志勇, 李永祯. 组合角反射体极化模型构建与分析[J]. 系统工程与电子技术, 2026, 48(2): 381-391.

Guoqing WU, Luoshengbin WANG, Ping WANG, Zhiyong SONG, Yongzhen LI. Polarization model construction and analysis for combined corner reflector[J]. Systems Engineering and Electronics, 2026, 48(2): 381-391.

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