ToA-based localization algorithm for mitigating positioning error in NLoS channel NLoS채널 환경의 측위 오차 보정을 위한 ToA 기반 측위 알고리즘

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Due to vacant environment unmanned aerial vehicle (UAV) anchors experience in common, line of sight (LoS) channels can be acquired easily with UAV anchors. With this property, localization performance can be enhanced significantly with UAV anchors. However, degradation of localization performance because of non-line of sight (NLoS) channels is inevitable (even in the case of UAV anchors). In this paper, a novel wireless localization algorithm is proposed which reduces localization error in the agricultural system with the existence of NLoS channels. The algorithm improves localization performance via the probability distribution of the occurrence of LoS/NLoS channels and probability distribution of delay time of NLoS channel. The proposed algorithm is shown to outperform the conventional algorithm in terms of localization performance using a simulation which assumes an agricultural environment. © ICROS 2018.
Publisher
Institute of Control, Robotics and Systems
Issue Date
2018-10
Language
Korean
Article Type
Article
Citation

Journal of Institute of Control, Robotics and Systems, v.24, no.11, pp.1043 - 1047

ISSN
1976-5622
DOI
10.5302/J.ICROS.2018.18.0175
URI
http://hdl.handle.net/10203/248750
Appears in Collection
EE-Journal Papers(저널논문)
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