一种地球表面目标无源定位算法  

An Algorithm of Over-the-Horizon Passive Location of Earth Target Based on Time Difference of Arrival

作　　者：许波 谢春胜 卿浩博 赵超越 何超 XU Bo;XIE Chunsheng;QING Haobo;ZHAO Chaoyue;HE Chao(No.29 Research Institute of China Electronics Technology Group Corporation,Chengdu 610063,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,四川成都610063

出　　处：《电声技术》2023年第5期95-97,101,共4页Audio Engineering

摘　　要：基于WGS-84地球椭球体模型,研究并提出一种对流层散射效应下的超视距无源定位算法,能够对地球表面目标进行精确时差定位,并推导出相关计算公式。通过计算机仿真试验验证对比所提算法与现有技术在不同目标距离时的定位性能。仿真结果表明,所提算法的定位误差优于现有技术。Based on the WGS-84 Earth ellipsoid model,this paper studies and proposes an over-the-horizon passive location algorithm under the tropospheric scattering effect,which can accurately locate the time difference of the earth surface target,and derives the relevant calculation formula.The positioning performance of the proposed algorithm and the prior art at different target distances is verified and compared by computer simulation experiments.Simulation results show that the positioning error of the proposed algorithm is better than that of the prior art.

关 键 词：WGS-84椭球模型 超视距 对流层散射 时差 无源定位 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]