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2017 | OriginalPaper | Buchkapitel

A Novel Kalman Filter Based NLOS Localization Method for Wireless Sensor Networks

verfasst von : Long Cheng, Yuchao Shao, Yan Wang

Erschienen in: Cloud Computing and Security

Verlag: Springer International Publishing

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Abstract

Wireless sensor networks (WSNs) have the focus of research in recent years. Moreover, positioning is very important for wireless sensor networks. However, the positioning accuracy still has large error in the case of non-line-of-sight. In this paper, we propose an improved Kalman filter algorithm to reduce the influence of NLOS error. For the case of NLOS, the measurement residual Ei(k) is updated firstly. This method can effectively reduce the NLOS error, which makes the positioning result more accurate. The simulation results show that the proposed localization algorithm can accurately apply to the normal NLOS location problem.

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Metadaten
Titel
A Novel Kalman Filter Based NLOS Localization Method for Wireless Sensor Networks
verfasst von
Long Cheng
Yuchao Shao
Yan Wang
Copyright-Jahr
2017
DOI
https://doi.org/10.1007/978-3-319-68505-2_42