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An Efficient NLOS Errors Mitigation Algorithm for TOA-Based Localization
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DOI：10.3390/s20051403.png)
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摘要
En 中文
In time-of-arrival (TOA) localization systems, errors caused by non-line-of-sight (NLOS) signal propagation could significantly degrade the location accuracy. Existing works on NLOS error mitigation commonly assume that NLOS error statistics or the TOA measurement noise variances are known. Such information is generally unavailable in practice. The goal of this paper is to develop an NLOS error mitigation scheme without requiring such information. The core of the proposed algorithm is a constrained least-squares optimization, which is converted into a semidefinite programming (SDP) problem that can be easily solved by using the CVX toolbox. This scheme is then extended for cooperative source localization. Additionally, its performance is better than existing schemes for most of the scenarios, which will be validated via extensive simulation.
Keyword:
cooperative source localization
least squares
non-line-of-sight
semidefinite programming
time-of-arrival
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期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
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引用论文
NLOS Error Mitigation for TOA-Based Source Localization With Unknown Transmission Time.png)
IEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
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