基于RSSI的无线传感器网络目标定位算法设计  

Design of Target Location Algorithm Based on RSSI for Wireless Sensor Networks

作　　者：吕元海[1] 王海波[2] 赵正[3] 

机构地区：[1]西安邮电大学信息中心,陕西西安710121 [2]西安邮电大学计算机学院,陕西西安710121 [3]咸阳师范学院学报编辑部,陕西咸阳712000

出　　处：《咸阳师范学院学报》2016年第4期42-45,共4页Journal of Xianyang Normal University

基　　金：咸阳师范学院科研基金项目(11XSYK345)

摘　　要：针对无线节点能够根据接收信号强度估算其到锚节点间距离这一特性,设计了基于RSSI的均值定位和条件概率定位两种无线传感器网络目标定位算法。这两种算法均能够不同程度地实现未知节点的定位。在Matlab7.0环境下对上述算法进行仿真实验,结果证明在同等条件下,条件概率定位算法较均值定位算法具有稳定性好、平均误差小、定位精度高等优点,是一种较好的目标定位算法。According to the feature of the wireless nodes to estimate received signal strength to anchor nodes, two kinds of wireless sensor networks are designed based on RSSI target localization algo- rithm, the average localization algorithm and the conditional probability localization algorithm. These two algorithms are able to function the positioning of the unknown node in different degrees. A simula- tion test is made of the above algorithm in Eclipse4.2 environment simulation experiment. The results show that under the same condition, the conditional probability positioning algorithm has good stability, small average error, high positioning accuracy, which is a good target localization algorithm.

关 键 词：无线传感器网络 RSSI 定位算法 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]