一种障碍物检测移动节点定位算法研究  

Research on Barriers Detected Localization for Mobile Nodes

作　　者：单志龙[1,2] 黄恒 项婉 SHAN Zhi-long;HUANG Heng;XIANG Wan(School of Computer Science,South China Normal University,Guangzhou 510631,China;School of Distance Education,South China Normal University,Guangzhou 510631,China)

机构地区：[1]华南师范大学计算机学院,广州510631 [2]华南师范大学网络教育学院,广州510631

出　　处：《小型微型计算机系统》2019年第11期2352-2356,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61671213)资助;广州市科技计划项目

摘　　要：针对障碍物较多的定位环境,本文对障碍物影响下的无线电信号进行建模,通过过滤出信号被障碍物遮蔽但能加强待定位节点定位的盲节点,并把盲节点加入待定位节点当前的锚节点集,利用待定位节点前后时刻的锚节点差集,提高待定位节点的锚节点信号接受率,从而提高定位精度.实验仿真结果表明,该文提出的改进算法在障碍物较多的定位场景中能以较小的时间代价取得更好的定位精度.Aiming at the localization of environment with moving barriers,a model is constructed to simulate how the radio signal of an anchor can be blocked by barriers in this paper,by using the difference set of a node’s adjacent anchor set,a few blind anchors whose signal are blocked by barriers can be filtered out. These blind anchors can strengthen the condition of sample filtering and as a result improve the positioning accuracy. The experimental result shows that the improved algorithm has a better positioning accuracy under the condition of paying a small cost of time.

关 键 词：无线传感器网络 移动定位 蒙特卡罗定位 障碍物 盲节点 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]