雷达地物回波建模方法与应用  

A Method for Modeling Radar Ground Echoes and Its Application

作　　者：谢永亮 胡辉 刘尚富 XIE Yongliang;HU Hui;LIU Shangfu(Naval Petty Officer Academy, Bengbu 233032, Anhui)

机构地区：[1]海军士官学校,安徽蚌埠233032

出　　处：《火控雷达技术》2020年第3期87-91,100,共6页Fire Control Radar Technology

摘　　要：当前对于将地物转化为雷达显示器上的回波涉及并不多,要模拟出逼真的地物回波,就必须研究地物显示的建模问题,是提供逼真的地物回波的必要条件。本文首先分析了雷达入射余角对地物回波的影响,在此基础上对地物回波建立了相应的数学模型,考虑到地物的起伏性和相关性,加入了地杂波的统计特性,并通过实例仿真模拟了较为逼真的地物回波画面,验证了建模方法的合理性和可操作性。So far,transformation of terrain features into echoes on the radar display remains relatively under-researched.In order to simulate ground echoes with high fidelity,it is necessary to study the modeling of the ground echoes.In this paper,influence of the radar grazing angle on ground echoes is analyzed at first.On this basis,a mathematical model is established for ground echoes.Considering the undulation and correlation of terrain features,the statistical characteristics of ground clutter are also utilized.Practical simulation outputs realistic ground echo pictures,which proves the validity and feasibility of the proposed modeling method.

关 键 词：入射余角 杂波散射系数 雷达反射截面积 统计特性 

分 类 号：TN95[电子电信—信号与信息处理]