传感技术学报2018，Vol.31Issue(3)：463-470,8.DOI:10.3969/j.issn.1004-1699.2018.03.023
无线传感器网络中的线性移动目标运动参数捕获方法
Capturing Method of Motion Parameters for Linear Moving Target in Wireless Sensor Networks
摘要
Abstract
Moving target tracking,namely the motion path and parameter obtaining of moving target has important re-search value in the application of wireless sensor networks(WSNs). Based on the TOA measurement method be-tween mobile target node and beacon node,a method to capture the parameters of moving targets is proposed in WSNs. Using the built estimation model of motion parameter for mobile target,the unconstrained linear least squared (ULLS)and constrained linear least squares(CLLS)methods are deduced to estimate the initial position and moving speed of the linear moving target. By relaxing the estimation model into convex semidefinite programming(SDP) problem,the SDP algorithm is designed to capture the motion parameters. The simulation results show that in the three designed algorithms,the estimation error of the ULLS algorithm is the largest. The SDP algorithm ranks sec-ondly,and the estimation error of the CLLS algorithm is the smallest. With the increasing of sampling period,the es-timation error of initial position also increases slightly,but the speed estimation error is reduced. More number of samplings means the increasing of the measurement information which can effectively reduce the estimation error of position and velocity.关键词
无线传感器网络/移动目标/运动参数捕获/目标跟踪Key words
wireless sensor networks/mobile target/motion parameter capturing/target tracking分类
信息技术与安全科学引用本文复制引用
吴晓平,华宇婷,胡军国,王国英..无线传感器网络中的线性移动目标运动参数捕获方法[J].传感技术学报,2018,31(3):463-470,8.基金项目
浙江省自然科学基金项目(Y16F020036,LY18F020010) （Y16F020036,LY18F020010）
国家自然科学基金项目(31570629) （31570629）
浙江省公益技术研究工业项目(2015C31004) （2015C31004）
浙江省重点科技项目(2015C03008) （2015C03008）
