公开(公告)号：US20220365174A1

公开(公告)日：2022-11-17

申请号：US17292607

申请日：2019-11-18

Applicant: ELTA SYSTEMS LTD.

Inventor： Michael Mihlin

IPC: G01S7/40 ,  H01Q3/08 ,  H01Q3/26

Abstract: A calibration utilizes reference data indicative of a position of a target element relative to a reference location, of a position of a reference point on a rotatable support relative to the reference location, orientation data indicative of at least one angular position of the rotatable support, and antenna measurement data indicative of electromagnetic echo signals received by a radar antenna from the target element. A measured position of the target element relative to the radar antenna is determined based on at least a portion of the antenna measurement data. A reference position of the target element relative to the radar antenna is determined based on the reference data and on at least a portion of the orientation data. At least one bias value or function associated with the orientation data and/or the antenna measurement data is determined based on a deviation between the determined measured position and reference position.

公开(公告)号：US11906653B2

公开(公告)日：2024-02-20

申请号：US17292607

申请日：2019-11-18

Applicant: ELTA SYSTEMS LTD.

Inventor： Michael Mihlin

IPC: G01S7/40 ,  H01Q3/08 ,  H01Q3/26

CPC classification number: G01S7/4004 ,  H01Q3/08 ,  H01Q3/267

Abstract: A calibration utilizes reference data indicative of a position of a target element relative to a reference location, of a position of a reference point on a rotatable support relative to the reference location, orientation data indicative of at least one angular position of the rotatable support, and antenna measurement data indicative of electromagnetic echo signals received by a radar antenna from the target element. A measured position of the target element relative to the radar antenna is determined based on at least a portion of the antenna measurement data. A reference position of the target element relative to the radar antenna is determined based on the reference data and on at least a portion of the orientation data. At least one bias value or function associated with the orientation data and/or the antenna measurement data is determined based on a deviation between the determined measured position and reference position.