Proceedings of the 2016 International Conference on Computer Science and Electronic Technology

Hybrid TDOA/AOA Localization Algorithm in Non-line-of-sight Environments

Authors
Rongpei Ni, Hui Xiong, Luning Xu, Yanchun Xie
Corresponding Author
Rongpei Ni
Available Online August 2016.
DOI
https://doi.org/10.2991/cset-16.2016.9How to use a DOI?
Keywords
NLOS error, identification, time difference of arrival(TDOA), angle of arrival (AOA)
Abstract
In reality, Non-line-of-sight(NLOS) error is the major factor which influences the positioning accuracy. NLOS identification and correction are the major techniques of reducing the positioning error. In this paper, we investigate the NLOS propagation identification and correction for time difference of arrival (TDOA) in wireless sensor networks. Based on the TDOA residual, an NLOS identification algorithm is proposed. when the anchors which can use to location are too small, after we identified. In this case, the excessive time delay in NLOS environment; the measurements for TDOA are reconstructed by estimating the mean and variance of the excessive time delay. So we can rewrite the TDOA that we measured. In order to obtain an accuracy position, we joint AOA to this location. In this case, we can calculate the tag position with TDOA and AOA. Firstly, it figures out the radial range between tag and reference anchor, then calculates the location of tag. Simulation results show that with the existence of NLOS errors, this method can improve the positioning accuracy in wireless sensor networks.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Proceedings
2016 International Conference on Computer Science and Electronic Technology
Part of series
Advances in Computer Science Research
Publication Date
August 2016
ISBN
978-94-6252-213-8
ISSN
2352-538X
DOI
https://doi.org/10.2991/cset-16.2016.9How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Rongpei Ni
AU  - Hui Xiong
AU  - Luning Xu
AU  - Yanchun Xie
PY  - 2016/08
DA  - 2016/08
TI  - Hybrid TDOA/AOA Localization Algorithm in Non-line-of-sight Environments
BT  - 2016 International Conference on Computer Science and Electronic Technology
PB  - Atlantis Press
SN  - 2352-538X
UR  - https://doi.org/10.2991/cset-16.2016.9
DO  - https://doi.org/10.2991/cset-16.2016.9
ID  - Ni2016/08
ER  -