摘要
为提高无源侦察系统的定位精度,对测向交叉和三站时差联合定位进行了研究.根据测向交叉和三站时差定位的数学模型,首先推导基于测向交叉和时差的联合定位数学模型,分析影响其定位误差的因素;然后给出理论定位精度的几何稀释;最后进行仿真实验.仿真结果验证了影响测向交叉和时差的联合定位精度的因素,对实际工程应用中的设计具有指导意义.
In order to improve the localization accuracy of passive reconnaissance systems,this paper makes a study on joint localization combining direction-finding cross and three-station time difference.Based on the mathematical models of direction-finding cross and three-station time difference localization,first is derived the mathematical model for joint localization integrating direction-finding cross and time difference,and are analyzed the factors affecting its localization error.Then,the geometric dilution of theoretical localization accuracy is pro-vided,and finally,simulation experiments are conducted.The simulation results verify the factors affecting the joint localization accuracy of direction-finding cross and time difference,which has guiding significance for the design in practical engineering applications.
作者
张和发
王俊文
ZHANG Hefa;WANG Junwen(No.38 Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China)
出处
《空天预警研究学报》
2025年第4期252-256,共5页
JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH
关键词
测向交叉定位
时差定位
联合定位
定位精度
几何稀释
direction-finding cross localization
time difference localization
joint localization
localization accuracy
geometric dilution
