基于舰船雷达散射特性的对消隐身仿真研究  

Simulation Research on Cancellation Stealth of Warship Based on Its Radar Scattering Properties

作　　者：向迎春[1,2] 曲长文[2] 李炳荣[2] 侯海平[2,3] 

机构地区：[1]中国人民解放军91321部队 [2]海军航空工程学院电子信息工程系 [3]中国人民解放军91039部队

出　　处：《系统仿真学报》2013年第1期104-110,共7页Journal of System Simulation

摘　　要：提出了基于舰船强散射场减缩的有源对消方法。用多层快速多级子算法(MLFMA)分析了舰船的散射特性并对数据作平滑处理,直接从散射场中提取强散射源点的幅值、相位和极化信息,避免了估计散射中心的误差。分析了空间电磁信号的干涉特性,通过对消信号同回波信号在半空间的相干抵消实现了舰船隐身。仿真表明:对消后向散射场可以有效地降低单站雷达对舰船的探测能力,对消其它方向峰值散射场可以有效地降低舰船的总散射场。所提方法可为舰船有源对消隐身的工程实现提供重要的参考。A kind of active cancellation method based on reduction of the strong scattering field of warship was proposed. Scattering properties of warship were analyzed through multi-level fast multi-pole algorithm （MLFMA） and the data was disposed by soothing processing. Amplitude, phase and polarization of the strong scattering point were extracted from the scattering field. The coherent cancellation characteristic between cancellation signal and echo signal was analyzed and applied to realize stealth of warship in half-space. Simulation results show that capability of mono-static radar to detect warship can be reduced effectively through canceling backscattering field, and total scattering field of warship can be reduced through canceling peak scattering field in the other orientations. The proposed method can also provide reference for warship＇s active stealth in project realization.

关 键 词：隐身技术 有源对消 舰船 雷达截面 极化 

分 类 号：TJ765.5[兵器科学与技术—武器系统与运用工程] TN972.2[电子电信—信号与信息处理]