A Geometric and Scattering Modeling Method for Chaff Clouds Containing Bending Fibers

IF 4.6 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-12 DOI:10.1109/LAWP.2026.3723034

Zuo Yanchun;Li Yue;Guo Lixin;Xu Jiahao;Yang Huaiyu

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Abstract

Chaff cloud is one of the effective passive jammers for target covering. The target releases generous of chaff fibers to generate strong radar echoes, thereby preventing radars from locking onto the valid target. Previous studies on the geometric and scattering modeling of the chaff cloud often idealized the chaff fiber as finite-length straight conductors. However, chaff fiber is bending due to the influence of wind and gravity. This bending effect then alters the scattering properties of the chaff cloud, which leads to inaccuracies in tactical effectiveness estimations for chaff clouds. Consequently, this letter describes the bending effect of chaff fibers based on the Euler–Bernoulli beam theory. The Method of Moments with pulse basis functions is employed to calculate the scattering of the chaff clouds that contains curved fibers. The letter also explores the relationship between the distribution of impedance matrix components, the monostatic scattering of the chaff cloud, and the curvature of the fibers. The results demonstrate that the bending effect of fibers is a nonnegligible factor in evaluating the interference effectiveness of chaff clouds.

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含弯曲纤维箔条云的几何和散射建模方法

箔条云是一种有效的目标覆盖被动干扰手段。目标释放大量的箔条纤维，产生强烈的雷达回波，从而阻止雷达锁定有效目标。以往箔条云几何和散射模型的研究往往将箔条光纤理想化为有限长度的直线导体。但由于风和重力的影响，箔条纤维会发生弯曲。这种弯曲效应改变了箔条云的散射特性，导致箔条云战术效能估计的不准确性。因此，本文基于欧拉-伯努利光束理论描述了箔条纤维的弯曲效应。采用带脉冲基函数的矩量法计算了含弯曲光纤的箔条云的散射。这封信还探讨了阻抗矩阵分量的分布、箔条云的单稳态散射和光纤曲率之间的关系。结果表明，光纤的弯曲效应是评价箔条云干扰效能的一个不可忽略的因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.