基于GNSS的多基地雷达目标定位与运动参数提取精度分析  

Target localization and kinematic parameter extraction accuracy analysis for GNSS-based multistatic radars

作　　者：黄攀 叶新红 陈静 杭余晖 袁康 HUANG Pan;YE Xinhong;CHEN Jing;HANG Yuhui;YUAN Kang(SPIC Jiangsu Offshore Wind Power Company Co.,Ltd.,Yancheng 100001,China)

机构地区：[1]国家电投江苏海上风电公司,江苏盐城100001

出　　处：《雷达与对抗》2023年第4期15-18,23,共5页Radar & ECM

摘　　要：基于GNSS的外辐射源雷达具备潜在的多基地雷达特性,聚焦基于GNSS的外辐射源雷达目标定位和运动参数提取精度分析,利用克拉美-罗下界分析目标定位和运动参数提取精度与卫星个数及目标回波信噪比之间的关系。仿真结果表明,卫星个数越多,目标定位与运动参数提取精度越高;当卫星数量相同时,不同卫星照射下目标回波信噪比相差越小,目标定位与运动参数提取精度越高。Passive bistatic radars based on GNSS can be inherently considered as multistatic radars.This paper focuses on the accuracy analysis of target localization and kinematic parameter extraction for GNSS-based multistatic radars,and Cramer-Rao Lower Bound(CRLB)is applied to evaluate the relationship between the system accuracy and the number of satellites and the target echo SNR.Simulation results indicate that the accuracy of target localization and kinematic parameter extraction can be improved by using more satellites and decreasing the difference of the target echo SNRs under different illumination.

关 键 词：GNSS 多基地雷达 目标定位 运动参数提取 精度分析 

分 类 号：TN911.7[电子电信—通信与信息系统]