基于哈尔小波的传感器网络数据融合算法

Data fusion algorithm based on Haar wavelet in sensor networks

在无线传感器网络中,数据融合对于延长网络寿命起着关键作用。当前,对无线传感器网络中数据融合的研究主要集中在基于数据库查询的基础上进行数据合并,本文提出了使用基于哈尔小波变换的数据融合算法在传感器节点内进行数据级融合,它可以有效降低传感器节点内原始数据的发送量,并可以根据细节系数重构不同融合粒度的数据。

Data fusion plays a key role in extending sensor network lifetime.At present,The studies of Data Fusion for wireless sensor networks have focused primarily on data merger based on database query,this paper proposes the data fusion algorithm based Haar wavelet transform to aggregate,It can effectively reduce the number of the original data transmission,as well as,according to details,we can reconstruct the original data.