摘要
针对基于垂直平分线的区域定位算法(MBLA)存在定位精度低、迭代次数多的缺点,提出了基于三角形理论的区域定位算法(TBLA)。该算法以参与定位的两个锚节点连线作为一条边,以待定位节点与这两个锚节点的RSSI测距值作为另两条边构造三角形,然后根据三角形的形状进行定位。仿真结果表明,在相同通信半径下,TBLA定位误差只是MBLA的1/5,迭代次数减少了2/3以上,具有较高的应用价值。
Due to the shortcoming of MBLA（midnormal-based area localization algorithm） which has low localization precision and more iterative times,this paper proposed TBLA（triangle-based localization algorithm）.This algorithm used two RSSI ranging values between the node to be localized with two anchor nodes,and then constructed a triangle to locate the unknown node.Simulation result shows that TBLA＇s locating error is only 1/5 of MBLA＇s,and more importantly,the iterative times are less 1/3 of MBLA＇s in the same communication radius.So the application value of this algorithm has high.
出处
《计算机应用研究》
CSCD
北大核心
2013年第1期249-251,共3页
Application Research of Computers
基金
西北民族大学中央高校基本科研业务费专项资金资助项目(ZYZ2012058)
四川省科技支撑计划资助项目(2011GZ005)
