Efficient closed-form solution for target localization using TDOA measurements in the presence of sensor position errors

查看全文 作　　者：Yan [1,2]Leibing;Zhang [1]Yerong;Lu [1]Yin

机构地区：[1]School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications;[2]Department of Electronics and Communication Engineering, Henan Institute of Technology

出　　处：《The Journal of China Universities of Posts and Telecommunications》索引2017年第24卷第4期,共10页

基　　金：supported by the National Natural Science Foundation of China (61271236, 61601245);the Open Research Program of the State Key Laboratory of Millimeter Waves (K201724);the China Postdoctoral Science Foundation Funded Project (2016M601693) 摘　　要：An efficient solution for locating a target was proposed, which by using time difference of arrival(TDOA) measurements in the presence of random sensor position errors to increase the accuracy of estimation. The cause of position estimation errors in two-stage weighted least squares(TSWLS) method is analyzed to develop a simple and effective method for improving the localization performance. Specifically, the reference sensor is selected again and the coordinate system is rotated according to preliminary estimated target position by using TSWLS method, and the final position estimation of the target is obtained by using weighted least squares(WLS). The proposed approach exhibits a closed-form and is as efficient as TSWLS method. Simulation results show that the proposed approach yields low estimation bias and improved robustness with increasing sensor position errors and thus can easily achieve the Cramer-Rao lower bound(CRLB) easily and effectively improve the localization accuracy. 关键词：指向本地化 TDOA 传感器位置错误 CRLB

相关文献

参考文献（13）
引证文献（1）
耦合文献（5）

参考文献(13)

引证文献(1)

耦合文献(5)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Efficient closed-form solution for target localization using TDOA measurements in the presence of sensor position errors

参考文献(13)

引证文献(1)

耦合文献(5)

用户提示