公开(公告)号：US20220221570A1

公开(公告)日：2022-07-14

申请号：US17707691

申请日：2022-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jintai ZHU ,  Dejian LI ,  Dapeng LAO ,  Ben WANG

IPC: G01S13/58 ,  G01S13/931 ,  G01S7/41 ,  G01S13/34

Abstract: A velocity ambiguity resolving method and an echo signal processing apparatus are provided. The method includes: calculating, for first echo signals respectively received by at least two receive antennas in the N receive antennas, a first estimate of a direction of arrival formed by the at least two receive antennas and a first target, where the first echo signals are echo signals formed after transmit signals sent by a same transmit antenna in a time division transmit mode are reflected by the first target; separately performing, by using the first estimate, angle compensation on M second echo signals received by a first receive antenna, to obtain M first compensated echo signals; and performing velocity estimation based on at least two first compensated echo signals, to obtain a velocity of the first target.

公开(公告)号：US20220342025A1

公开(公告)日：2022-10-27

申请号：US17848652

申请日：2022-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ben WANG ,  Dejian LI

IPC: G01S3/14

Abstract: A method and apparatus for measuring an angle of arrival. The method includes: determining L×N values based on received values obtained by a first antenna array and a second antenna array by receiving a signal and determining an angle of arrival (AoA) of the first signal based on the L×N values. The first antenna array includes L rows of array elements arranged in a first direction and K columns of array elements arranged in a second direction. The second antenna array includes P rows of array elements arranged in the first direction and Q columns of array elements arranged in the second direction. N=K+Q. An included angle between the first direction and the second direction is greater than 0 degrees.