首页 | 本学科首页   官方微博 | 高级检索  
     

基于静态传感器位置误差的TDOA源定位
引用本文:高红艳.基于静态传感器位置误差的TDOA源定位[J].电气自动化,2014(4):103-105.
作者姓名:高红艳
作者单位:宝鸡文理学院物理与信息技术系,陕西宝鸡721016
基金项目:宝鸡文理学院科研项目(ZK13093)
摘    要:从目前静态传感器的随机误差角度研究了使用到达的时间差异来进行的源定位。开发一个约束加权最小二乘源定位方法,它合并源位置和辅助变量之间的关系作为一种约束。CWLS源定位被表达成一个无限的二次约束优化问题,这是一个非凸问题。通过使用隐藏凸性的原始优化问题,能有效地获得目标优化源定位估计。模拟证明有良好的性能。

关 键 词:源定位  到达的时间差异  加权最小二乘法  非凸问题  约束加权最小二乘法

Source Localization through TDOA Based on Static Sensor Position Error
GAO Hong-yan.Source Localization through TDOA Based on Static Sensor Position Error[J].Electrical Automation,2014(4):103-105.
Authors:GAO Hong-yan
Affiliation:GAO Hong-yan (Department of Physics and Information Technology, Baoji University of Arts & Science, Baoji Shaanxi 721016, China)
Abstract:This paper presents a study on source localization using time difference of arrival ( TDOA } measurement from static sensors in the presence of random errors in sensor positions. We develop a CWLS ( constrained weighted least squares) source localization method, which incorporates the relationship between the source position and an auxiliary variable as a constraint. The CWI-S source localization is formulated as an indefinite constrained quadratic optimization problem-a non-convex problem. By employing the hidden convexity of the original optimization problem, the global optimal source location estimate can be efficiently obtained. Simulations prove the good performance of the proposed method.
Keywords:source localization  time difference of arrival  weighted least squares  non - convex issue  constrained weighted least squares
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号