A newself-localization method for wireless sensor networks  

作　　者：黄勇 章伏龙 吕芸 谢一帆 

机构地区：[1]Xi'an Institute of Electromechanical Information Technology [2]Xiaoshan Road & Bridge Engineering Department [3]Chun County Land Surveying Mapping Limited [4]School of Software Engineering, Xi'an Jiaotong University

出　　处：《Journal of Pharmaceutical Analysis》2008年第3期172-177,共6页药物分析学报（英文版）

摘　　要：Many applications of wireless sensor networks can benefit from fine-grained localization. In this paper, we proposed an accurate, distributed localization method based on the time difference between radio signal and sound wave. In a trilateration, each node adaptively chooses a neighborhood of sensors and updates its position estimate with trilateration, and then passes this update to neighboring sensors. Application examples demonstrate that the proposed method is more robust and accurate in localizing node than the previous proposals and it can achieve comparable results using much fewer anchor nodes than the previous methods.Many applications of wireless sensor networks can benefit from fine-grained localization. In this paper, we proposed an accurate, distributed localization method based on the time difference between radio signal and sound wave. In a trilateration, each node adaptively chooses a neighborhood of sensors and updates its position estimate with trilateration, and then passes this update to neighboring sensors. Application examples demonstrate that the proposed method is more robust and accurate in localizing node than the previous proposals and it can achieve comparable results using much fewer anchor nodes than the previous methods.

关 键 词：wireless sensor network node localization time-difference of arrival 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]