【摘要】 无线传感器网络作为一全新的信息获取和处理技术,在国防、工农业、环境监测等众多领域都有着重大的应用价值和科研价值.而节点定位信息在无线传感器网络中是一项必需的基础信息,文中介绍了节点定位技术的基本原理,并提出一种新的分级循环定位算法.通过仿真显示:当锚节点密度为10%,测距误差为5%,网络节点定位误差小于20%射频半径以及定位覆盖率为97%.更多还原

【Abstract】 Wireless sensor network is a novel technology about acquiring and processing information. It has the significant application value and scientific research value in the national defense,industry and agriculture,environmental monitoring and so on .The information about node location is indispensable to the wireless sensor networks.The basic theory of Self-Localization Algorithm and a novel graded circle position estimation for WSN are presented. When anchor percent is 10% of nodes in sensor networks and the range estimates error is 5%, the performance of algorithm by simulation is that position estimates error less than 20% telecommunication range and the network’s coverage is 97%.更多还原