基于卫星擦地角的被动雷达定位分析  

Passive Radar Detection Analysis Based on Satellite Grazing Angle

作　　者：宁越 彭章友[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建教育部重点实验室,上海200444

出　　处：《工业控制计算机》2023年第12期118-119,132,共3页Industrial Control Computer

摘　　要：被动雷达系统的目标检测与定位能力取决于目标的机动特性和雷达散射截面积。针对海面舰船目标,分析出一定检测概率下的最低检测门限以及双基地情况下的最大相干时长,通过软件建模研究了不同卫星擦地角下舰船雷达散射截面(RCS)的变化,并建立了基于广播电视卫星为外辐射源的被动雷达探测系统。在此基础上,得到了该场景下的被动雷达探测边界工程解。仿真表明,通过合适的选星策略可以提升被动雷达探测距离。The target detection and localization capabilities of passive radar systems depend on the maneuvering characteristics of the target and the radar cross section(RCS).This paper analyzes the minimum detection threshold for a certain detection probability and the maximum coherent integration time for the dual-site case for sea surface ship targets.The variation of the ship's RCS under the satellite grazing angle is studied through software modeling,and a passive radar detection system based on broadcast and television satellites as external radiation sources is established in this paper.Based on this,the engineering solution of the passive radar detection boundary in this scenario is obtained.Simulation results show that the detection range of the passive radar can be improved by selecting appropriate satellites.

关 键 词：被动雷达 广播电视卫星 RCS 相干时长 

分 类 号：TN957.51[电子电信—信号与信息处理] TN943.3[电子电信—信息与通信工程]