一种基于PGD的WIFI位置定位新算法  

A New Algorithm for WIFI Position Positioning Based on PGD

作　　者：梁刚[1] 陈鹏 周鲜明 LIANG Gang;CHEN Peng;ZHOU Xianming(Chongqingl Survey Institute,Chongqing 401121,China)

机构地区：[1]重庆市勘测院,重庆401121

出　　处：《测绘与空间地理信息》2024年第4期217-220,共4页Geomatics & Spatial Information Technology

摘　　要：在利用已知指纹点位置坐标估算定位点位置时,目前大多采用WKNN。考虑到AP信号在不同方向有不同的衰减率,本文在WKNN基础上提出了基于PGD的位置定位新算法。通过实验分析,结果表明:与WKNN相比,本文提出的PGD算法具有更高的定位精度和更强的可靠性。When using the position coordinates of known fingerprint points to estimate the location of location points,most WKNN is used.Considering that the AP signal has different decay rates in different directions,this paper proposes a new position positioning algorithm based on PGD on the basis of WKNN.Through the experimental analysis,the results show that compared with WKNN,the PGD algorithm proposed in this paper has higher positioning accuracy and better reliability.

关 键 词：WIFI室内定位 WKNN 主梯度方向 定位精度 

分 类 号：P209[天文地球—测绘科学与技术]