摘要
通过对无线传感网络APIT定位算法的研究,知道该算法在定位精确度、定位覆盖率等方面存在较严重的问题。利用移动锚节点在异构传感器网络中的优势,结合TDOA测距算法,并综合考虑整个网络的锚节点部署及优化方法,提出一种APIT定位算法的改进算法。通过仿真实验对改进后的定位算法的性能进行定性分析。改进后的算法在定位精确度、定位覆盖率等方面要明显优于传统定位算法。
From the study of APIT localization algorithm of wireless sensor network,it shows that the APIT localization algorithm has lots of problems on low localization accuracy and low coverage rate.Based on the advantages of mobile anchor nodes in heterogeneous sensor network,combined with TDOA location algorithm,and taking the method of anchor nodes deployed and optimization in whole network into consideration,this paper proposed an improved APIT localization algorithm which can solve the problem of the low localization accuracy in wireless sensor network.Simulation results show that,in aspects of localization accuracy and coverage rate,the algorithm has a great advantage over traditional algorithm.
出处
《仪表技术与传感器》
CSCD
北大核心
2012年第8期84-86,92,共4页
Instrument Technique and Sensor
