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改进的无约束优化3D-DV-Hop定位算法
引用本文:张晶,李煜.改进的无约束优化3D-DV-Hop定位算法[J].计算机工程与科学,2022,44(1):75-83.
作者姓名:张晶  李煜
作者单位:(1.昆明理工大学信息工程与自动化学院,云南 昆明 650500;2.云南枭润科技服务有限公司,云南 昆明 650500; 3.昆明理工大学云南省人工智能重点实验室,云南 昆明 650500; 4.昆明理工大学云南省计算机技术应用重点实验室,云南 昆明 650500)
基金项目:云南省基础研究计划重点项目(202101AS070016);2020年云南省研究生优质课程“算法分析与设计”建设项目(109920210048);云南省“万人计划”产业技术领军人才项目(云发改人事[2019]1096号);云南省技术创新人才项目(2019HB113)。
摘    要:针对传统DV-Hop三维定位算法定位误差较大,且机器学习及仿生算法计算任务繁重的缺点,提出一种改进的无约束优化3D-DV-Hop定位算法,采用二通信半径策略计算最小跳数值,提出平方代价函数对锚节点跳距值进行优化处理,并将其加权跳距值作为未知节点跳距值,最后根据约束问题的无约束求解思想,将加权误差最小化进而求解.通过与传...

关 键 词:跳数优化  跳距加权  无约束优化  拉格朗日乘子法
收稿时间:2020-07-30
修稿时间:2021-01-04

An improved unconstrained optimization 3D-DV-Hop localization
ZHANG Jing,LI Yu.An improved unconstrained optimization 3D-DV-Hop localization[J].Computer Engineering & Science,2022,44(1):75-83.
Authors:ZHANG Jing  LI Yu
Affiliation:(1.Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500; 2. Yunnan Xiaorun Technology Service Co.,Ltd.,Kunming 650500; 3.Yunnan Key Laboratory of Artificial Intelligence,Kunming University of Science and Technology,Kunming 650500; 4. Key Laboratory of Computer Technology Application of Yunnan Province, Kunming University of Science and Technology,Kunming 650500,China)
Abstract:Aiming at the disadvantages of the traditional 3D DV-Hop positioning algorithm with large positioning errors and heavy calculation of machine learning and bionic algorithms,an improved unconstrained optimization 3D DV-Hop positioning algorithm is proposed.In terms of hop count,a two-communication radius strategy is adopted to calculate the minimum hop value.In terms of hop distance,a square cost function method is proposed to optimize the anchor node hop distance value,and its weighted hop distance value is used as the unknown node hop distance value.Finally,according to the unconstrained solution idea of the constraint problem,the weighted error is minimized and then solved.Through simulation comparison with traditional algorithms and various improved algorithms under three conditions,it is verified that the optimization algorithm can significantly reduce the positioning error under the condition of low calculation amount.
Keywords:hop count optimization  hop-size weighting  unconstrained optimization  Lagrangian multiplier
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