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Date of Publication:2022-10-10

Journal:数据采集与处理

Affiliation of Author(s):电子信息与电气工程学部

Issue:3

Page Number:397-402

ISSN No.:1004-9037

Abstract:A new algorithm is proposed for detecting and mitigating non-light of sight(NLOS) error in a time of arrival(TOA) based wireless positioning system. Received signal strength (RSS) is employed to detect whether a TOA value contains NLOS error and mitigate it. When the relationship between TOA and RSS in light of sight (LOS) situation is known, a possibility of NLOS can be calculated using the TOA & RSS measurement results which are provided by a base station. Then the TOA measurement results can be trimmed using the possibility mentioned above. Finally, the algorithm is implemented in a wireless positioning system. Experiment results show that the algorithm can mitigate the effect of NLOS without increasing times of measurements.

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