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移动锚节点凸规划定位算法研究及改进-论文.pdf

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文档介绍:第 卷 第 期 传 感 技 术 学 报
27 10 Vol􀆰 27  No􀆰 10
年 月
2014 10 CHINESE JOURNAL OF SENSORS AND ACTUATORS Oct. 2014
Research and Improvement of Mobile Anchor Node Localization
Algorithm Based on Convex Programming
REN Keqiang∗ꎬZHUANG Fangwang
(School of Information EngineeringꎬJiangxi University of Science and TechnologyꎬGanzhou Jiangxi ꎬChina)
341000
Abstract: ꎬ
In order to enhance the node localization accuracy in wireless sensor networks this article had studied the

related references and proposed an improved convex programming localization algorithm of mobile anchor node. The
algorithm made some improvements on the original algorithm to reduce the computational complexity of solving opti ̄

mization problems positive semidefinite relaxation method was utilized for enlarging the feasible region of solving
problems to improve the accuracy of solving optimization problems and local gradient descent method was used to
approximate the optimal estimate. The experimental