A Novel Subspace Approach for Hyperbolic Mobile Location  

作　　者：CHEN Zhangxin WAN Qun WEI Hewen YANG Wanlin 

机构地区：[1]School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China [2]Southwest Institute of Electronics and Telecomunications Technology of China, Chengdu 610041, China

出　　处：《Chinese Journal of Electronics》2009年第3期569-573,共5页电子学报（英文版）

基　　金：This work is supported in part by the National Natural Science Foundation of China （No.60372022, No.60772146） and by the Program for New Century Excellent Talents of University （NCET-05-0806）.

摘　　要：Locating a Mobile station （MS） in wireless network is currently an important research topic. Instead of linearizing the nonlinear hyperbolic equations, a novel noise subspace approach is proposed for hyperbolic mobile location using the Multidimensional scaling （MDS） analysis whose loss function is related to a scalar prod- uct matrix. This approach is further improved using the Weighted least squares （WLS） algorithm. It is robust to large measurement noise due to the fact that the dimension knowledge and eigen-structure of the scalar matrix are exploited. Computer simulations are included to verify the theoretical development and to contrast the estimator performance with the Two-step WLS （TWLS） method and the Cramer-Rao lower bound （CRLB）.

关 键 词：Hyperbolic location Mobile location Time-difference-of-arrival （TDOA） Multidimensional scaling （MDS）. 

分 类 号：O175.27[理学—数学] TN911.25[理学—基础数学]