基于无线传感器网络DV-HOP定位算法的改进和研究  

Improvement and Research on DV-Hop Localization Algorithm for Wireless Sensor Networks

作　　者：贾琦[1] 周新志[1] 

机构地区：[1]四川大学电子信息学院,成都610065

出　　处：《计算机测量与控制》2013年第11期3043-3046,共4页Computer Measurement &Control

摘　　要：在无线传感器网络中,传感器节点的自身定位算法的优劣直接影响着无线传感器网络中目标定位的精度;通过分析原始算法中存在的误差,针对原算法产生的误差,提出了一种改进的DV-Hop算法,即使用全网平均校正值和二位双曲线定位算法来替代原有的算法,并逐一对两种方法进行了仿真实验,结果表明改进后可减小误差;再将两种方法结合,仿真结果证明了该改进算法在定位精度上最大误差可以减小30%。In wireless sensor networks, sensor node positioning algorithm directly affect the precision of targeting. Through the analysis of the error in the original algorithm, in response to the original algorithm to produce the error, using average correction value of the whole network and two hyperbolic positioning algorithm to replace the original algorithm. The simulation results of the two methods show that the improvement can reduce the error. Then combined the two methods, and the simulation results show that the improved algorithm can be re duced 30% maximum error in the positioning accuracy.

关 键 词：无线传感器网络 DV—Hop定位算法 节点定位 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]