虚拟AP支持的室内非线性约束区域定位

在具有线性约束的室内区域,如走廊或狭窄通道,使用行为地标和室内地图辅助的方法,可以提供较为精确的位置信息。但在非线性约束的室内区域,如办公室、商铺和机场大厅等空间范围较大的室内空间,人为活动轨迹难以进行线性约束,很难使用行为地标和室内地图辅助的方法进行定位。虚拟无线信号接入点(access point,AP)是利用无线信号衰减的简化公式计算出的AP的“虚拟位置”。基于此,本文提出一种基于虚拟AP坐标的指纹点聚类算法,完成离线阶段对指纹点的聚类分割;提出一种基于八阵图的AP选取算法,减少在线定位阶段使用的AP的数量,降低用户定位的计算量。最后,在典型的室内场景,对所提出算法进行试验验证,显著提高...

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Veröffentlicht in:Ce hui xue bao 2021-05, Vol.50 (5), p.569
Hauptverfasser: 薛卫星, 李清泉, 周宝定
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creator 薛卫星
李清泉
周宝定
description 在具有线性约束的室内区域,如走廊或狭窄通道,使用行为地标和室内地图辅助的方法,可以提供较为精确的位置信息。但在非线性约束的室内区域,如办公室、商铺和机场大厅等空间范围较大的室内空间,人为活动轨迹难以进行线性约束,很难使用行为地标和室内地图辅助的方法进行定位。虚拟无线信号接入点(access point,AP)是利用无线信号衰减的简化公式计算出的AP的“虚拟位置”。基于此,本文提出一种基于虚拟AP坐标的指纹点聚类算法,完成离线阶段对指纹点的聚类分割;提出一种基于八阵图的AP选取算法,减少在线定位阶段使用的AP的数量,降低用户定位的计算量。最后,在典型的室内场景,对所提出算法进行试验验证,显著提高了室内非线性约束区域定位的精度。
doi_str_mv 10.11947/j.AGCS.2021.20200450
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subjects Airports
Algorithms
Clustering
Indoor environments
Inertial sensing devices
Localization
Mathematical analysis
Office buildings
title 虚拟AP支持的室内非线性约束区域定位
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