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一种结合测距和非测距的低成本混合定位算法*
作者:章坚武,薛亮 日期:2010-03-26/span> 浏览:3094 查看PDF文档
一种结合测距和非测距的低成本混合定位算法*
章坚武,薛亮
(杭州电子科技大学 通信工程学院,浙江 杭州 310018)
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。
关键词:混合定位;无线传感网络;测距;非测距
中图分类号:TP393文献标识码:A文章编号:1001-4551(2010)02-0039-04
A hybrid low-cost location algorithm combination of ranging and free ranging
ZHANG Jian-wu, XUE Liang
(College of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)
Abstract: 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.
Key words: hybrid location; wireless sensor network; range based; range free
参考文献(References):
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