一种结合测距和非测距的低成本混合定位算法  

A hybrid low-cost location algorithm combination of ranging and free ranging

作　　者：章坚武[1] 薛亮[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《机电工程》2010年第2期39-42,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省自然科学基金资助项目(R105473)

摘　　要：在对现有无线传感器自定位算法进行分析研究的基础上,针对众多的定位算法对锚节点依赖性强的缺点,提出了一种基于低成本的混合定位算法,传感器节点通过少量基站获取位置信息,结合基于测距和基于不测距的两种方法来对节点进行定位。仿真实验及性能分析结果表明,该算法能有效提高节点的定位精度,降低了成本,进一步提高了网络的覆盖率。Aiming at improving the situation that most of location schemes have strong dependence on anchor nodes,a hybrid low-cost location algorithm was proposed based on adequate research on existing self-location algorithms in wireless sensor networks.The location information was obtained according to less base stations,and the node was located using two ways of range-based and range free.Simulation results show that the algorithm can efficiently improve the location precision while reducing the cost,and the network coverage is also expanded.

关 键 词：混合定位 无线传感网络 测距 非测距 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]