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Passive Human Trajectory Tracking Study in Indoor Environment with CSI

机译:CSI中室内环境的被动人类轨迹跟踪研究

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Device-free indoor human trajectory tracking is critical to support many applications with the elder health care. Available works mainly achieved the human trajectory tracking with the help of wireless sensor networks (WSNs). However, they have high complexity and cost to deploy multiple sensor nodes in WSNs. Different from these works, this paper proposes a new passive human trajectory tracking algorithm based on the channel state information (CSI) in indoor environment. In such an algorithm, we first use discrete wavelet transform to decrease noise in CSI, then use the time window of CSI time series to detect whether human moves or not, and finally quadratic discriminant analysis (QDA) is employed to determine the location of human. Experiment study is conducted to validate the algorithm and to illustrate performance findings.
机译:无设备室内人类轨迹跟踪对于支持与老年人保健的许多应用来说至关重要。可用作品主要实现了无线传感器网络(WSN)的帮助追踪人的轨迹跟踪。但是,它们具有高复杂性和成本,可以在WSN中部署多个传感器节点。本文不同于这些作品,提出了一种基于室内环境信道状态信息(CSI)的新的被动人体轨迹跟踪算法。在这种算法中,我们首先使用离散小波变换来降低CSI中的噪声,然后使用CSI时间序列的时间窗来检测是否人类移动,并且最终采用二次判别分析(QDA)来确定人类的位置。进行实验研究以验证算法并说明性能结果。

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