公开(公告)号：US12210085B2

公开(公告)日：2025-01-28

申请号：US17818494

申请日：2022-08-09

Applicant: ALPS ALPINE CO., LTD.

Inventor： Taiki Igarashi ,  Mitsunobu Inoue ,  Naoya Shimada ,  Daisuke Takai

IPC: G01S13/42 ,  G01S7/40 ,  G01S13/32

Abstract: An angle measuring device includes an antenna device having antenna elements equally spaced along a first axis and a second axis, respectively, a selecting unit that selects phase differences with which a variance thereof becomes a predetermined value or less, from a plurality of phase differences of signals received from a transmission device by the antenna elements, an azimuth angle computing unit that computes an azimuth angle of the transmission device from a ratio of a first phase difference between signals received by two antenna elements spaced by a predetermined distance along the first axis and a second phase difference between signals received by two antenna elements space by the predetermined distance along the second axis, and an elevation angle computing unit that computes an elevation angle of the transmission device, based on the computed azimuth angle and the first or second phase difference.