一种基于加权处理和误差修的DV-Hop定位算法研究  

A Study of DV-Hop Localization Algorithm Based on Weighted Processing and Error Modification

作　　者：周杭霞[1] 崔晨[1] 叶佳骏 

机构地区：[1]中国计量学院信息工程学院,杭州310018

出　　处：《传感技术学报》2014年第12期1699-1703,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61027005)

摘　　要：针对传统的DV-Hop算法在定位过程中出现的容易引起误差的问题,提出了一种综合考虑所有信标节点的平均跳距并引入权值修正,将信标节点当作未知节点计算误差进而优化精度的距离估计算法,使网络平均跳距和节点位置估计值更加准确。通过相关仿真实验表明:改进算法优化了原算法的定位精度和定位稳定性,达到了预期目标。Aiming at the traditional DV-Hop algorithm easily caused error,the current thesis proposes a comprehen-sive consideration of all beacon nodes average one-hop distance and introducing weights corrected results. At the same time use beacon nodes as unknown nodes calculating error and use the error optimizing accuracy. Finally makes the average one-hop distance and node position estimates more accurate. Theoretical analysis and simulation results show that the proposed algorithm has better locating performance in locating precision and precision stability, achieve the expected goal.

关 键 词：无线传感器网络 DV-HOP定位算法 归一加权 误差修正 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]