山西大学学报（自然科学版）2017，Vol.40Issue(4)：743-749,7.DOI:10.13451/j.cnki.shanxi.univ(nat.sci.).2017.04.013
一种基于EKF的WSN目标跟踪改进算法
An Improved WSN Target Tracking Algorithm Based on EKF
摘要
Abstract
In the field of target tracking,wireless sensor networks have a wide range of applications.Aiming at the problem of nonlinear target tracking in EKF algorithm,a new improved algorithm is proposed by introducing RSSI distance weighted centroid algorithm based on the EKF algorithm.Combining the observation value of the node and the RSSI distance weighted centroid algorithm to the target's location value effectively in the EKF algorithm,it can effectively improve the accuracy of the target tracking and reduce the tracking error.Through the algorithm simulation,compared with several positioning algorithms and nonlinear filtering algorithms,the improved algorithm can achieve good results in all aspects and has a high real-time performance.关键词
WSN目标跟踪/EKF算法/加权质心算法Key words
WSN target tracking/EKF algorithm/weighted centroid algorithm分类
信息技术与安全科学引用本文复制引用
李化,朱钾..一种基于EKF的WSN目标跟踪改进算法[J].山西大学学报（自然科学版）,2017,40(4):743-749,7.基金项目
山西省自然科学基金(2014011019-1) （2014011019-1）
中国国家留学基金委(201606935043) （201606935043）
