公开(公告)号：US20190271774A1

公开(公告)日：2019-09-05

申请号：US15909830

申请日：2018-03-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin ZHANG ,  Youngsin LEE ,  Ning ZHANG

IPC: G01S13/56 ,  H04L25/02

Abstract: Method, apparatus and systems for detecting motion of an object or person have been disclosed. The method and the accompanying apparatus for motion detection include determining a plurality of channel impulse response (CIR) power profiles over a plurality of time sampling taps of one or more received signals, time aligning the plurality of the CIR power profiles based on time sampling taps of one or more occurrences of peak CIR power levels being above a threshold in each of the plurality of the CIR power profiles for generating a reference CIR power profile, and detecting motion based on a comparison of the reference CIR power profile to a captured signal CIR power profile. The detecting motion may be based on a coarse motion detection process, and followed by a fine motion detection process if a correlation degree threshold is below a level in the coarse motion detection process.