海面低飞目标复合散射计算及分析

doi:10.16182/j.issn1004731x.joss.201803033

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (3): 1030-1035.doi: 10.16182/j.issn1004731x.joss.201803033

海面低飞目标复合散射计算及分析

武光辉¹, 童创明¹, 隋栋训², 孙玉龙³

1.空军工程大学防空反导学院,陕西西安 710051;
2.93246部队,吉林延边 133613;
3.95910部队,甘肃酒泉 735000

收稿日期:2016-03-18 出版日期:2018-03-08 发布日期:2019-01-02
作者简介:武光辉(1991-),男,河南周口,硕士,研究方向为目标与环境电磁散射特性及应用;童创明(1964-),男,湖北黄冈,博士,教授,博导,研究方向为计算电磁学与雷达信号处理。
基金资助:
国家自然科学基金(61372033),航空基金(20130196005)

Computation and Analysis for Coupling Scattering Characteristics of Low-fly Target Above Ocean Surface

Wu Guanghui¹, Tong Chuangming¹, Sui Dongxun², Sun Yulong³

1.School of Air and Missile Defense, Air Force Engineering University, Xi’an 710051, China;
2.Unit of 93246, Yanbian 133613, China;
3.Unit of 95910, Jiuquan 735000, China

Received:2016-03-18 Online:2018-03-08 Published:2019-01-02

摘要/Abstract

摘要： 针对低飞目标与海面复合散射的快速计算问题,对传统的多径散射计算算法进行了改进,提出一种基于镜像反射面元斜率统计的多径散射计算算法。改进算法相比传统的多径散射模型考虑了在重力波调制作用下的确定海面斜率分布特性。对确定海面上镜像反射面元斜率的分布特性进行统计,然后以此对各种斜率下的镜像反射面元的多径耦合散射进行加权,得到总的耦合散射贡献,进而求得目标与确定海面的复合电磁散射特性。仿真实验结果表明,该方法合理解释镜像反射面元斜率缓变对耦合散射的影响,能够有效地对广义布儒斯特效应进行仿真,为进一步对研究时变海面上运动目标的电磁散射特性打下基础。

关键词: 复合散射, 广义布儒斯特效应, 超低空, 斜率分布, 多径

Abstract: Aiming at fast computation of the composite scattering of low-fly target and ocean surface, the improvement of conventional multi-path algorithm is implemented, and a new multi-path algorithm is proposed based on the statistics of mirror facets’ slope. New algorithm takes the modulation from gravity into account in comparison with conventional algorithm. The distribution of mirror facets’ slope is counted from a determined ocean surface, and the multi-path coupling is summed with a weight coefficient, which scatters from mirror facets with different slope. Furthermore, the coupling scattering characteristic is obtained from target and ocean surface. Simulation result indicates that the proposed algorithm could explain how the coupling scattering is affected by the slow change of mirror facets’ slope, and could simulate the G-Brewster effect effectively, which lies a solid foundation for electromagnetic scattering research of the moving target and time-varied ocean surface.

Key words: composite scattering, G-Brewster, ultralow altitude, distribution for slops, multi-path

中图分类号:

TN011
TN955

武光辉, 童创明, 隋栋训, 孙玉龙. 海面低飞目标复合散射计算及分析[J]. 系统仿真学报, 2018, 30(3): 1030-1035.

Wu Guanghui, Tong Chuangming, Sui Dongxun, Sun Yulong. Computation and Analysis for Coupling Scattering Characteristics of Low-fly Target Above Ocean Surface[J]. Journal of System Simulation, 2018, 30(3): 1030-1035.

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海面低飞目标复合散射计算及分析

Computation and Analysis for Coupling Scattering Characteristics of Low-fly Target Above Ocean Surface

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