An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment

doi:10.13190/jbupt.201206.38.zhaojh

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (6): 38-43.doi: 10.13190/jbupt.201206.38.zhaojh

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An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment

ZHAO Jun-hui, ZHANG Xue-xue, ZENG Long-ji

1. State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China;2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;3. School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China

Received:2012-03-18 Revised:2012-06-29 Online:2012-12-28 Published:2013-01-07
Contact: ZHAO Junhui E-mail:junhuizhao@bjtu.edu.cn

Abstract

Abstract:

Signal power can be enhanced or decreased due to the interference of both none line of sight and path loss in the indoor environment, which causes a bias property of both positive and negative in the received signal strength (RSS) measurement error. A method for improving RSS positioning is proposed. The intersections of positioning annuluses are used in the algorithm of weighted centroid to estimate the position of the mobile stations. Simulation shows that this algorithm can improve the location accuracy in the indoor environment.

Key words: indoor positioning, none line of sight, received signal strength, positioning annuluses

CLC Number:

TN92

ZHAO Jun-hui, ZHANG Xue-xue, ZENG Long-ji. An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2012, 35(6): 38-43.

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An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment

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