计算机应用研究2016，Vol.33Issue(10)：3139-3142,4.DOI:10.3969/j.issn.1001-3695.2016.10.059
基于克里金空间插值的位置指纹数据库建立算法
Location fingerprint database construction algorithm based on Kriging spatial interpolation
摘要
Abstract
In order to solve a problem about the huge workload of established fingerprint database in the indoor positioning system,this paper proposed an ordinary Kriging spatial interpolation algorithm fused signal attenuation factor.Firstly,this method used Gaussian filter to deal with the sampling data of the limited preselected reference node signal strength,then ob-tained the spatial variation function by fitting the obtained reference data with the spherical model.Then it used ordinary Krig-ing spatial interpolation to acquire the estimation of other node signal strength and generated location fingerprint.Finally,it could generate a large capacity and high resolution position fingerprint database by finite field measurement data.This paper completed positioning simulation by the KNN_Filter algorithm and logarithm weighting algorithm to prove the validity of this es-tablished database method.The simulation results show that compared with the traditional established database method,the al-gorithm reduces the workload of about 40%under the premise of ensuring accuracy of the positioning and improves working ef-ficiency of the indoor location fingerprint positioning method.关键词
信号衰减因素/高斯滤波/变异函数/普通克里金插值Key words
signal attenuation factor/Gaussian filtering/variation function/ordinary Kriging spatial interpolation分类
信息技术与安全科学引用本文复制引用
刘志建,关维国,华海亮,孙泽鸿..基于克里金空间插值的位置指纹数据库建立算法[J].计算机应用研究,2016,33(10):3139-3142,4.基金项目
辽宁省科技厅博士启动基金资助项目（20131045）；辽宁省教育厅资助项目 （）
