公开(公告)号：US11923604B2

公开(公告)日：2024-03-05

申请号：US17339845

申请日：2021-06-04

Applicant: Raytheon Company

Inventor： Andrew David Gamalski ,  Jaime Robledo

IPC: H01Q1/28 ,  F41G7/22 ,  G01S13/42 ,  G01S13/50 ,  G01S13/88

CPC classification number: H01Q1/281 ,  F41G7/2246 ,  F41G7/2286 ,  G01S13/426 ,  G01S13/50 ,  G01S13/883

Abstract: Apparatus and associated methods relate to using a plurality of antennas radially distributed about a rotatable turret to sequentially scan a field of view. Each of the plurality of antennas directs an electromagnetic beam and senses its reflection along a principal direction defined by a roll position of the rotatable turret and an azimuthal beam angle. The principal directions of the antennas have a unique azimuthal beam angle relative to a boresight (i.e., axis of rotation). As the turret rotates, each of these antennas is sequentially turned on at a first roll position and off at a second roll position. This enables electromagnetic beams generated by the antennas to pan a scene both in azimuth and roll. An image processor then determines, based on the reflected signals received by the plurality of antennas, directions to and/or velocities of objects within the scanned field of view.

公开(公告)号：US20220393340A1

公开(公告)日：2022-12-08

申请号：US17339845

申请日：2021-06-04

Applicant: Raytheon Company

Inventor： Andrew David Gamalski ,  Jaime Robledo

IPC: H01Q1/28 ,  H01Q1/42 ,  H01Q3/10

Abstract: Apparatus and associated methods relate to using a plurality of antennas radially distributed about a rotatable turret to sequentially scan a field of view. Each of the plurality of antennas directs an electromagnetic beam and senses its reflection along a principal direction defined by a roll position of the rotatable turret and an azimuthal beam angle. The principal directions of the antennas have a unique azimuthal beam angle relative to a boresight (i.e., axis of rotation). As the turret rotates, each of these antennas is sequentially turned on at a first roll position and off at a second roll position. This enables electromagnetic beams generated by the antennas to pan a scene both in azimuth and roll. An image processor then determines, based on the reflected signals received by the plurality of antennas, directions to and/or velocities of objects within the scanned field of view.