公开(公告)号：US20240045023A1

公开(公告)日：2024-02-08

申请号：US18254416

申请日：2021-11-22

Applicant: SAAB AB

Inventor： Kent FALK

IPC: G01S7/03 ,  G01S7/02 ,  G01S13/931

CPC classification number: G01S7/032 ,  G01S7/0235 ,  G01S13/931

Abstract: The present disclosure relates to a multiple-input multiple-output (MIMO) radar system comprising an antenna comprising at least two sparse transmit arrays, each sparse transmit array comprising a plurality of antenna elements. The antenna elements of each sparse transmit arrays are at least partially overlapping with the antenna elements of the other sparse transmit arrays of the at least two sparse transmit arrays. Further, there is control circuitry connected to the antenna. The control circuitry is configured to transmit a signal having a waveform by means of each sparse transmit array, wherein the waveform of each signal is substantially orthogonal relative to a waveform of each other signal of each other sparse transmit arrays of the at least two sparse transmit arrays.

公开(公告)号：US20210389419A1

公开(公告)日：2021-12-16

申请号：US17287567

申请日：2018-10-25

Applicant: SAAB AB

Inventor： Kent FALK

IPC: G01S7/36 ,  G01S13/26 ,  G01S13/87

Abstract: A radar system and method for maintaining radar performance of radar system in jammed environment are provided. The radar system has a main antenna arrangement for transmitting and/or receiving electromagnetic waves. Main antenna arrangement includes at least one main antenna element and at least one main electronics module for transmitting and/or receiving signals to/from at least one main antenna element. The system has auxiliary antenna arrangement for transmitting and/or receiving electromagnetic waves, auxiliary antenna arrangement includes at least one auxiliary antenna element and at least one auxiliary electronics module for transmitting and/or receiving signals to/from the at least one auxiliary antenna element. System has a controller connected to main antenna arrangement and to auxiliary antenna arrangement. Controller is configured to transmit first radar waveform from main antenna element, and transmit second radar waveform from auxiliary antenna element.