Edge Detection Based Individual Mobility Graph Construction in WLAN Indoor Environment
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摘要: 针对传统WLAN室内指纹定位需在离线阶段采集大量指纹数据,或即时定位与地图构建(SLAM)中要求终端包含运动传感器等特殊功能模块的问题,该文首先通过在定位目标区域内随机采集若干条接收信号强度(RSS)序列,并对带有时间戳标记的RSS序列进行谱聚类处理,以构建RSS类转移图;然后,利用图像边缘检测方法,建立运动用户所对应的信号空间逻辑图;最后,根据信号空间逻辑图与定位目标区域的物理连接图的映射关系,完成对用户位置的估计。此外,采用绘图正交算法对逻辑图与物理连接图进行绘制,以增强用户运动地图的可读性和可靠性。
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