Decimeter level passive tracking with wifi

  title={Decimeter level passive tracking with wifi},
  author={Kun Qian and Chenshu Wu and Zheng Yang and Chaofan Yang and Yunhao Liu},
Pioneer approaches for WiFi-based sensing usually employ learning-based techniques to seek appropriate statistical features, but do not support precise tracking without prior training. Thus to advance passive sensing, the ability to track fine-grained human mobility information acts as a key enabler. In this paper, we proposed Widar, a WiFi-based tracking system that simultaneously estimates human's moving velocity (both speed and direction) and locations at decimeter level. Instead of applying… CONTINUE READING