太赫兹频段粗糙目标散射中心建模研究  

Research on Scattering Center Modeling of Rough Targets in Terahertz Band

作　　者：王瑞君 高敬坤 周峰[1] WANG Rui-jun;GAO Jing-kun;ZHOU Feng(College of Air and Missile Defense,Air Force Engineering University,Xi'an 710043,China;Tianhui Satellite Center,Beijing 100192,China)

机构地区：[1]空军工程大学防空反导学院,西安710043 [2]北京天绘卫星中心,北京100192

出　　处：《微波学报》2021年第5期34-38,45,共6页Journal of Microwaves

摘　　要：太赫兹雷达可获取目标的精细散射特征信息,对于目标探测、成像和识别具有重要意义。针对太赫兹频段雷达目标散射中心建模问题进行讨论,分析了散射中心模型、目标回波和目标图像之间的内在物理关系,并基于粗糙面散射理论中的全波方法和信号处理中的滤波方法提出一种构建目标散射中心模型的方法,可同时描述粗糙目标的传统相干散射中心和非相干面散射行为,为太赫兹频段粗糙目标的散射回波仿真提供了一种有效的描述手段。Terahertz radar can obtain the detailed scattering feature of targets, which is of great significance for target detection, imaging and recognition. In this paper, the scattering center modeling of radar target in terahertz band is discussed. The inherent physical relationship among the scattering center model, the target echo and the target imaging result is analyzed. A new method of target scattering center modeling is proposed based on the full wave approach(FWA) and the signal filtering method, which can describe both the traditional coherent scattering center and the non-coherent scattering behavior of rough targets. The method provides an effective description for the scattering echo simulation of rough targets in terahertz band.

关 键 词：太赫兹 粗糙目标 散射中心建模 全波法 

分 类 号：TN957.51[电子电信—信号与信息处理]