计算机应用与软件Issue(12)：284-287,4.DOI:10.3969/j.issn.1000-386x.2013.12.075
基于UWB编码的井下无线传感器网络定位方法
LOCALISATION METHOD FOR WIRELESS SENSOR NETWORKS IN UNDERGROUND MINES BASED ON UWB CODING
葛日波 1沈海龙1
作者信息
- 1. 大连理工大学城市学院 辽宁 大连116600
- 折叠
摘要
Abstract
Localisation technique is the important research content in wireless sensor networks .In this paper we present a fast localisation algorithm for WSN applying in underground mines environments .First, we present a new UWB-based communication protocol to collect the received signal strength (RSS) information, i.e.it is a UWB coding approach called as U-BOTH (the UWB technique based on orthogonal variable spreading factor ( OVSF ) and time hopping ) .Then, we propose a fast localisation algorithm suitable for underground mines situation.Through deducing out the UWB path loss model , the algorithm applies the maximum likelihood estimation ( MLE) method to calculating the distances to the reference sensors and uses minimum variance to estimate the coordinates of the sensors .Simulation results show that the U-BOTH transmission technique can effectively reduce the bit error rate in path loss model , the raging and localisation algorithm can accurately calculate the location of objects in underground mine .关键词
无线传感器网络/UWB/OVSF/极大似然估计Key words
Wireless sensor networks/Ultra wideband ( UWB)/OVSF MLE分类
信息技术与安全科学引用本文复制引用
葛日波,沈海龙..基于UWB编码的井下无线传感器网络定位方法[J].计算机应用与软件,2013,(12):284-287,4.
