US 11,789,143 B2
Radar apparatus, system, and method of generating angle of arrival (AoA) information
Ophir Shabtay, Tsofit (IL); Joseph Tabrikian, Tel Aviv-Jaffa (IL); and Thushara Hewavithana, Chandler, AZ (US)
Assigned to INTEL CORPORATION, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Dec. 24, 2020, as Appl. No. 17/133,924.
Prior Publication US 2021/0116531 A1, Apr. 22, 2021
Int. Cl. G01S 13/931 (2020.01); G01S 3/74 (2006.01); G01S 13/42 (2006.01); G06F 18/2431 (2023.01)
CPC G01S 13/931 (2013.01) [G01S 3/74 (2013.01); G01S 13/426 (2013.01); G06F 18/2431 (2023.01)] 25 Claims
OG exemplary drawing
 
1. An apparatus comprising a radar processor, the radar processor comprising:
an input to receive Two Dimensional (2D) radar receive (Rx) data, the 2D radar Rx data based on radar signals of a 2D radar antenna; and
a processor configured to:
determine a first one-dimensional (1D) Angle of Arrival (AoA) spectrum corresponding to a first dimension of an Azimuth-Elevation domain based on a first spectrum analysis of the 2D radar Rx data;
determine a second 1D AoA spectrum corresponding to a second dimension of the Azimuth-Elevation domain based on a second spectrum analysis of the 2D radar Rx data;
detect one or more first object hypotheses in the first dimension based on the first 1D AoA spectrum;
detect one or more second object hypotheses in the second dimension based on the second 1D AoA spectrum;
determine a plurality of 2D object hypotheses corresponding to the Azimuth-Elevation domain based on the first object hypotheses and the second object hypotheses; and
generate 2D AoA information in the Azimuth-Elevation domain based on a 2D AoA spectrum analysis of the 2D radar Rx data according to the plurality of 2D object hypotheses.