摘要
无线传感器网络在森林防火、目标追踪、灾难预警、环境监测等应用中,节点定位是关键技术之一。对山谷地形中无线传感器网络三维DV-Hop定位算法进行了研究。通过对三维DV-Hop定位算法误差分析,找出产生误差的主要原因,提出了相应的改进算法。仿真实验结果证明:改进后的算法提高了节点定位精度,并指出了在山谷地形应用三维DV-Hop定位算法时锚节点比例的参考值。
In wireless sensor networks,three-dimensional(3D) localization plays a crucial role in applications of fire preventing,target tracking,disaster warning,and environmental monitoring,and so on.Research on valley terrain DV-Hop localization algorithm for wireless sensor networks.Through analysis on 3D DV-Hop algorithm error,the main reason for the deviation is pointed out,improved algorithm is presented.Simulation results show that the improved algorithm enhances the nodes localization precision.The suitable proportion of anchors with 3D DV-Hop localization algorithm based on valley for wireless sensor networks is pointed out.
出处
《传感器与微系统》
CSCD
北大核心
2012年第6期35-37,41,共4页
Transducer and Microsystem Technologies
基金
江西省教育厅基金资助项目(GJJ10492)
国家自然科学基金资助项目(60903011)
江西省教育厅青年科学基金资助项目(GJJ10160)
