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Distributed Angle Estimation for Localization in Wireless Sensor Networks
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DOI：10.1109/TWC.2012.121412.111346.png)
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摘要
En 中文
In this paper, we design a new distributed angle estimation method for localization in wireless sensor networks (WSNs) under multipath propagation environment. We employ a two-antenna anchor that can emit two linear chirp waves simultaneously, and propose to estimate the angle of departure (AOD) of the emitted waves at each receiving node via frequency measurement of the local received signal strength indication (RSSI) signal. An improved estimation method is further proposed where multiple parallel arrays are adopted to provide the space diversity. The proposed methods rely only on radio transceivers and do not require frequency synchronization or precise time synchronization between the transceivers. More importantly, the angle is estimated at each sensor in a completely distributed manner. The performance analysis is derived and simulations are presented to corroborate the proposed studies.
Keyword:
Wireless sensor network
localization
angle of departure estimation
multipath propagation
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期刊
IF:
10.7
论文数:
1.3W
被引数:
5.3W
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