摘要
提出一种改进型的质心定位算法。该算法利用RSSI计算影响因子θ对质心算法进行加权,提高初次定位的准确性,并通过一种校正机制对初次定位位置进行校正。该算法运算复杂度较低,通信开销与传统的质心算法相仿。仿真表明改进算法的定位精度较传统的质心定位算法有了极大的提高。
This paper proposes a improved centroid localization algorithm.The algorithm computes a weighting factor θ by using the RSSI for the Centroid Localization algorithm,improves the accuracy of the initial localization,and then uses a correction mechanism to correct the initial localization.The algorithm has lower computational complexity,communication spending is similar to the centroid localazation algorithm.Simulation results show that,the improved algorithm’s accuracy has an greatly improvement than the traditional centroid localazation algorithm.
出处
《传感技术学报》
CAS
CSCD
北大核心
2010年第6期868-872,共5页
Chinese Journal of Sensors and Actuators
关键词
无线传感器网络
分布式定位
质心定位
定位校正
WSNs
distributed localization
centroid localization
localization correction
