空中目标时差定位倒三角形布站精度分析  

Precision Analysis of Locating 3-D Moving Target with TDOA Based on Inverted Triangle Station

作　　者：黄金凤[1] 韩焱[1] 王黎明[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051

出　　处：《弹箭与制导学报》2008年第4期253-255,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(60602041);山西省自然科学基金(2006021018);重点实验室基金(9140C1204020608)资助

摘　　要：无源定位系统中,地面基站的布站方式对定位精度有直接的影响,因此会影响整个系统性能的发挥。通过讨论时差定位系统的原理,建立相应的模型,分析影响定位精度的各因素,仿真分析不同参数设置下的倒三角布站,得出定位精度与布站之间的联系,提出了三维目标定位的最优布站原则。In passive location system, the layout of stations influences on target positioning precision directly, so it makes a great impact on system＇ s performance. The theory of target positioning system using time difference of arrival （TDOA） was discussed and the corresponding model was given, besides, some factors that influence positioning precision were anailyzed. With the help of computer, the accuracy of target location influenced by difference parameters was studied, Finally an optimal distribution principle for 3-D target location was given.

关 键 词：时差定位 定位精度 倒三角布站 几何精度因子 

分 类 号：TN953.7[电子电信—信号与信息处理]