›› 2015, Vol. 28 ›› Issue (12): 161-.

• 论文 • 上一篇    下一篇

非共视条件下多站仅测TOA定位新方法

郑力会   

  1. (海军驻洛阳地区航空军事代表室,河南 洛阳 471009)
  • 出版日期:2015-12-15 发布日期:2015-12-15
  • 作者简介:郑力会(1988—),男,助理工程师。研究方向:综合航电系统与航空兵器。E-mail:zhenglihuidage@126.com

New Method by Only TOA for Multi-station Passive Location in Uncommon-View

ZHENG Lihui   

  1. (Naval Representative Office in Luoyang District,Luoyang 471009,China)
  • Online:2015-12-15 Published:2015-12-15

摘要:

针对非共视条件下,目前的多站无源定位方法大都失效问题,提出一种该条件下仅利用脉冲到达时间信息的多站无源定位新方法。该方法产生搜索网格中每网格点的期望TOA序列,选择与实测序列最接近的期望序列对应的网格点作为最优目标估计位置。通过仿真分析了TOA测量误差、观测站构型、基线距离及观测时间等参数对定位精度的影响。仿真结果表明,在不考虑观测站站址误差和时钟同步等系统误差情况下,定位精度接近CRLB下限。

关键词: 非共视, TOA处理, 无源定位

Abstract:

In view of the failure of almost all the methods of the multiple stations passive location in the uncommon-view,this paper propose a new method using only the time of arrival (TOA) in this situation.The TOA train of every net point is produced and the one that is most like of the real train is the excellent.Then the paper analyzes how the components affect the location precision such as the TOA-error,the distribution of the stations,the distances between the substations and the main-station and the observation time.The results of the emulation prove that a precision close to the CRLB lower limit can be achieved without considering the error of the station address and the clock synchronization.

Key words: uncommon view;TOA process;passive location

中图分类号: 

  • TN971