公开(公告)号：US20230021342A1

公开(公告)日：2023-01-26

申请号：US17960080

申请日：2022-10-04

申请人： Beibei Wang ,  Sakila Sandeepani Jayaweera Samaranayake Arachchige Dona ,  Xiaolu Zeng ,  Wei-Hsiang Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

发明人： Beibei Wang ,  Sakila Sandeepani Jayaweera Samaranayake Arachchige Dona ,  Xiaolu Zeng ,  Wei-Hsiang Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

IPC分类号： A61B5/00 ,  H04B17/309

摘要： Methods, apparatus and systems for enhanced wireless monitoring of vital signs are described. In one example, a described system comprises: a transmitter configured to transmit a wireless signal through a wireless channel of a venue; a receiver configured to receive the wireless signal through the wireless channel; and a processor. The received wireless signal differs from the transmitted wireless signal due to the wireless channel that is impacted by a periodic motion of a vital sign of an object in the venue. The processor is configured for: obtaining a time series of channel information (CI) of the wireless channel based on the received wireless signal, computing a two dimensional (2D) decomposition of the time series of CI (TSCI), enhancing the 2D decomposition, and monitoring the periodic motion of the vital sign based on the enhanced 2D decomposition.