最近一直在follow Yingying Chen和Dina Katabi组的工作，那就先从19年Yingying Chen组里Jian Liu等人发的survey开始看起
Wireless Sensing for Human Activity: A Survey(10.1109/COMST.2019.2934489)
目前典型的Wireless Sensing的workflow
对WIFI sensing的SOA大致分成了4类
- intrusion detection & occupancy monitoring
- activ-ity & gesture recognition
- vital signs monitoring
- useridentification & localization.
对Wireless sensing中的关键技术也是4类
- Received signal strength indicator (RSSI)
- channel stateinformation (CSI)
- frequency shift for frequency modulatedcarrier wave (FMCW)
- Doppler shift