计算机工程与应用2011，Vol.47Issue(21)：223-226,230,5.DOI:10.3778/j.issn.1002-8331.2011.21.059
无线传感网络节点非视距定位方法的改进
Improvement on non-line-of-sight nodes localization for wireless sensor networks
摘要
Abstract
A key obstacle to high accuracy location is the Non Line Of Sight(NLOS) transmission of signal in wireless sensor network node localization.NLOS error is the main source of location error.This paper proposes a new residual test location algorithm which is based on the AML estimation and the Distant Residual Test(DRT) based on analysis of NLOS error mitigation techniques using Position Residual Test(PRT).This algorithm gradually reduces the number of range measurements from the combinations,picking out the combinations of range measurements with the minimum residual at every step, and then calculating the node position.It demonstrates that the performance of DRT is close to PRT and it can reduce the computation complexity of PRT through the analysis and simulation .The superiority of the proposed method is proved.关键词
无线传感网络/非视距传播/近似最大似然估计/残差检测Key words
Wireless Sensor Network (WSN)/Non Line Of Sight (NLOS) transmission/Approximate Maximum Likelihood (AML) estimation/Residual Test(RT)分类
计算机与自动化引用本文复制引用
孟庆民..无线传感网络节点非视距定位方法的改进[J].计算机工程与应用,2011,47(21):223-226,230,5.
