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一种应用约束优化理论的TOA定位算法
引用本文:任向辉,杨红雨,龙迪.一种应用约束优化理论的TOA定位算法[J].计算机工程与应用,2010,46(15):90-92.
作者姓名:任向辉  杨红雨  龙迪
作者单位:四川大学 计算机学院,成都 610064
摘    要:移动通信、声源探测等领域的应用要求通过分布在不同位置的信号接收站得到的TOA测量值实现对辐射信号源进行定位。针对这个问题,提出了一种应用约束优化理论的基于TOA的定位算法,将由定位方程得到的加权线性最小二乘函数作为目标函数,并选择未知矢量元素之间的关系作为约束条件。仿真实验中将该方法与两步加权最小二乘等方法和CRLB进行比较的结果表明,约束优化理论的应用有效提高了定位精度。

关 键 词:定位  TOA  加权最小二乘  约束优化  
收稿时间:2009-5-11
修稿时间:2009-7-3  

Localization algorithm based on TOA applying constrained optimization theory
REN Xiang-hui,YANG Hong-yu,LONG Di.Localization algorithm based on TOA applying constrained optimization theory[J].Computer Engineering and Applications,2010,46(15):90-92.
Authors:REN Xiang-hui  YANG Hong-yu  LONG Di
Affiliation:College of Computer Science,Sichuan University,Chengdu 610064,China
Abstract:Applications in areas like telecommunication and acoustic source detection require the determination of the localization of a transmitter by using the TOA values measured by signal receivers at different positions.To address this problem,an algorithm based on TOA applying constrained optimization theory is proposed.The algorithm chooses the weighted least square functions determined by location equations as the target function and uses the relation between elements of unknown variables as restriction condit...
Keywords:locate  TOA  weighted least square  constrained optimization
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