A single observer location method under the scatter signals position disturbance situation:the constraint total least square method  

作　　者：YANG TianChi YU ChaoQun2~ WANG TianPeng1 ~ JIN Liang1 YU ChaoQun WANG TianPeng JIN Liang 

机构地区：[1]National Digital Switching System Engineering and Technological Research Center Zhengzhou 450002, China [2]Surveying and Mapping College of Information Engineering University, Zhengzhou 450002, China

出　　处：《Science China(Information Sciences)》2011年第1期146-152,共7页中国科学（信息科学）（英文版）

基　　金：supported by the National High-Tech Research & Development Program of China(Grant No. 2007AA01Z297);the National"Eleventh Five-year" Project of China(Grant No.1320061262);the National Natural Science Foundation of China(Grant Nos.60773137,60573112)

摘　　要：A target position can be estimated using position information from scattered signals in the non- line-of-sight propagation environment in a single observer location system. There is always an error in the finM estimated result of the position obtained using scatter signals because measurement noise is inevitable. To reduce the total error of the system, we propose a method of converting the problem of optimizing location into a one of solving the extremes of the constraints. And the problem of how to solve the extremes of the constraints is converted into an unconstrained problem by using the constrained total least squares （CTLS） method. Finally, the Newton iteration method is used to obtain the optimized solution. Simulation results also verify the capability of this method.A target position can be estimated using position information from scattered signals in the non- line-of-sight propagation environment in a single observer location system. There is always an error in the finM estimated result of the position obtained using scatter signals because measurement noise is inevitable. To reduce the total error of the system, we propose a method of converting the problem of optimizing location into a one of solving the extremes of the constraints. And the problem of how to solve the extremes of the constraints is converted into an unconstrained problem by using the constrained total least squares （CTLS） method. Finally, the Newton iteration method is used to obtain the optimized solution. Simulation results also verify the capability of this method.

关 键 词：SCATTER position disturbing VOCTLS single observer location Newton iteration 

分 类 号：TN953[电子电信—信号与信息处理] TN943.6[电子电信—信息与通信工程]