Method, apparatus, and system for wireless monitoring with improved accuracy

A wireless monitoring system, comprising:

• a first wireless device configured to transmit a wireless signal through a wireless multipath channel of a venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue;
• a second wireless device configured to receive the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the motion of the object;
• and
• a processor configured for:
• obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal using a processor, a memory communicatively coupled with the processor and a set of instructions stored in the memory,
• performing a classification of a sliding time window by analyzing channel information (CI) of the TSCI in the sliding time window,
• computing a motion information (MI) for the sliding time window based on the TSCI and the classification of the sliding time window, and
• monitoring the motion of the object based on the MI.