Passive localization of the signal source based on RSS and TDOA combination in the non-line-of-sight environment

被引：0
|
作者：
Yan Q. [1 ]
Wan P. [1 ]
Lu G. [1 ]
Huang Q. [1 ]
Wang J. [1 ]
Li Y. [1 ]
机构：
[1] School of Communications and Information Engineering, Xi'an University of Posts & Telecommunications, Xi'an
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2019年 / 46卷 / 03期
关键词：
Generalized trust domain subproblem; Non-line of sight; Received signal strength; Time difference of arrival;
D O I：
10.19665/j.issn1001-2400.2019.03.027
中图分类号：
学科分类号：
摘要：
This paper proposes a signal source passive localization algorithm based on the measurements of the energy and time domain in non-line-of-sight(NLOS) environment to address the decline in localization accuracy. By utilizing the information of the received signal strength (RSS) and time difference of arrival(TDOA), the non-convex localization problem is converted to a generalized trust domain subproblem(GTRS) by introducing the range square(RS) and the weighted least squares(WLS) method, with the position obtained by a bisection procedure. The iterative method is used to estimate the NLOS deviation and refine the position accuracy. Finally, Cramer Rao Lower Bound(CRLB) and computational complexity have been analyzed. Simulation results demonstrate that the proposed algorithm is robust and will be close to CRLB in NLOS environment. © 2019, The Editorial Board of Journal of Xidian University. All right reserved.
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页码：180 / 188
页数：8
相关论文
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