Multi-stage angle of arrival estimate in vehicle radar system

    公开(公告)号:US12032054B2

    公开(公告)日:2024-07-09

    申请号:US17480814

    申请日:2021-09-21

    发明人: Ofer Bar Shalom

    摘要: A system in a vehicle includes a radar system with a uniform linear array (ULA) of antenna elements and a uniform rectangular array (URA) of antenna elements to receive the reflected signals resulting from the emitted radio frequency energy. The ULA is arranged perpendicular to the URA. Processing circuitry estimates one or more elevation angles using the reflected signals received by the ULA of antenna elements and estimates an azimuth angle corresponding to each of the one or more elevation angles using the one or more elevation angles and the reflected signals received by the URA of antenna elements. Each of the one or more elevation angles and the corresponding one of the azimuth angles is referred to as an angle of arrival (AOA) of the reflected signals from an object. Control of an operation of the vehicle is based on each AOA of each object.