公开(公告)号：US20230090211A1

公开(公告)日：2023-03-23

申请号：US17483743

申请日：2021-09-23

Applicant: Apple Inc.

Inventor： Nayef ALSINDI ,  Joseph HAKIM ,  Andrew T. KEZYS ,  James T. CURRAN

IPC: G01S13/58 ,  G01S13/66 ,  G01S13/88 ,  G01S7/41 ,  G01S13/62

Abstract: Implementations of the subject technology provide object detection and/or classification for electronic devices. Object detection and/or classification can be performed using a radar sensor of an electronic device. The electronic device may be a portable electronic device. In some examples, object classification using a radar sensor can be based on an identification of user motion using radar signals and/or based on extraction of surface features from the radar signals. In some examples, object classification using a radar sensor can be based on time-varying surface features extracted from the radar signals. Surface features that can be extracted from the radar signals include a radar cross-section (RCS), a micro-doppler signal, a range, and/or one or more angles associated with one or more surfaces of the object.