基于带状通道的无线传感器网络定位算法  

A Positioning Algorithm Intended for Accurate Ranging Based on Wireless Sensor Networks

作　　者：段荣平[1] 武君胜[1] 

机构地区：[1]西北工业大学软件与微电子学院,陕西西安710072

出　　处：《西北工业大学学报》2008年第6期723-726,共4页Journal of Northwestern Polytechnical University

基　　金：2007国家创新基金(07C26226101997);国家高技术研究发展计划(2006AA04Z111);国家自然科学基金(50775185)资助

摘　　要：介绍了一种基于带状通道的无线传感器网络的定位算法。针对带状通道的特殊性,采用RSSI定位算法进行定位以及目标跟踪。通过建立当前试验环境的RSSI模型,从锚节点和非锚节点两方面对带状通道下的移动节点进行定位以及实时跟踪。试验结果表明,在试验环境中,在包括墙壁反射等各种因素的影响下,使用线性模型可获得较好的估计效果。Aim. In order to attain much higher precision, we propose improving the efficiency of the successful RSSI （received signal strength indicator） model through a certain post-treatment. Section 1 of the full paper explains in some detail our improvement. In this section, we establish a calculation model, equivalent to RSSI model but more convenient for calculations and, more importantly, partially responsible for much higher precision. In the calculation model, there are anchor nodes and non-anchor ones. The positioning tracking is monitored from anchor nodes and non-anchor ones. In section 2, we construct an experimental platform using an American wireless sensor network serial product; it is also partially responsible for much higher precision. The experimental results, given in Figs. 4 and 5, show preliminarily that under the experimental conditions that include wall reflection, the linear model is much more effective for positioning the moving anchor nodes in the ribbon region.

关 键 词：带状通道 接收信号强度 无线传感器网络 定位系统 锚节点 非锚节点 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]