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公开(公告)号:EP4427066A1
公开(公告)日:2024-09-11
申请号:EP22777775.2
申请日:2022-08-27
CPC分类号: G01S7/023 , G01S7/20 , G01S7/24 , G01S13/87 , G01S13/003 , G01S13/9089 , G01S13/282 , G01S13/9054 , G01S13/86 , G01S13/867 , G02B27/017 , G06T17/00 , G06T2210/3620130101 , G02B2027/018720130101
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公开(公告)号:EP4423523A1
公开(公告)日:2024-09-04
申请号:EP22887793.2
申请日:2022-10-10
申请人: Beammwave AB
发明人: LINDOFF, Bengt
CPC分类号: H04W72/569 , H04W72/1215 , G01S7/006 , G01S7/023
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3.
公开(公告)号:EP3373028B1
公开(公告)日:2024-08-28
申请号:EP18160054.5
申请日:2018-03-05
CPC分类号: G01S13/343 , G01S13/345 , G01S7/023 , G01S13/882 , G01S7/0232 , G01S7/0234 , G01S13/87
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4.
公开(公告)号:EP4414739A1
公开(公告)日:2024-08-14
申请号:EP23155625.9
申请日:2023-02-08
申请人: Axis AB
CPC分类号: G01S7/023 , G01S13/343 , G01S13/584 , G01S7/0235 , G01S7/0232 , G01S13/87
摘要: A method for identifying that a first FMCW radar unit is subject to parallel incoherent interference from a second FMCW radar unit is disclosed. The method comprises: acquiring a range-Doppler map, calculating a range-resolved signal for a negative half (corresponding to negative Doppler shifts) and a positive half (corresponding to positive Doppler shifts) of the range-Doppler map, and calculating a range-dependent noise profile for the range-Doppler map as, for each range interval, the smaller of the range-resolved signal for the negative half and the positive half. The method further comprises: identifying parallel incoherent interference in the range-Doppler map if a measure of a deviation between the range-resolved signal for the negative half and the positive half is smaller than a predetermined deviation threshold, and a measure of a difference between the range-dependent noise profile and a global noise floor of the range-Doppler map exceeds a predetermined noise threshold.
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公开(公告)号:EP4409323A1
公开(公告)日:2024-08-07
申请号:EP22797746.9
申请日:2022-09-30
发明人: ROUDIÈRE, Sylvain
IPC分类号: G01S7/02 , G01S13/931 , G01S7/00 , G01S13/32 , G01S13/34 , G01S17/931 , G01S13/86
CPC分类号: G01S7/023 , G01S13/931 , G01S7/003 , G01S7/0232 , G01S7/0233 , G01S7/0234 , G01S7/0236 , G01S13/325 , G01S13/345 , G01S13/347
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公开(公告)号:EP3816665B1
公开(公告)日:2024-05-15
申请号:EP19206838.5
申请日:2019-11-04
IPC分类号: G01S13/34 , G01S13/931 , G01S7/02
CPC分类号: G01S13/931 , G01S13/343 , G01S7/023
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公开(公告)号:EP4363881A1
公开(公告)日:2024-05-08
申请号:EP21737636.7
申请日:2021-06-29
发明人: RAFIQUE, Raihan
IPC分类号: G01S7/02 , G01S13/86 , G01S13/88 , G01S13/93 , H04B1/3827
CPC分类号: G01S7/023 , G01S13/86 , G01S13/886 , G01S13/93 , H04B1/3833
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公开(公告)号:EP4361675A1
公开(公告)日:2024-05-01
申请号:EP23206522.7
申请日:2023-10-27
IPC分类号: G01S13/44 , G01S13/58 , G01S13/933 , G01S13/95 , G01S7/02 , G01S7/292 , H01Q21/06 , H01Q25/02 , G01S13/02
CPC分类号: G01S2013/025420130101 , G01S13/4445 , G01S13/4463 , G01S13/933 , G01S7/023 , G01S7/292 , G01S13/953 , H01Q25/02 , H01Q21/061 , G01S13/582
摘要: A system and method for distinguishing targets of interest from main lobe clutter and sidelobe clutter includes an ESA or AESA (102) divided into subarrays (104, 106, 108, 110). A sum beam power profile is produced via one or more scans of the subarrays, and a difference beam power profile is produced via calculations involving the subarrays. A comparison of the sum beam power profile and the difference beam power profile accentuates signal power disparities between targets of interest and clutter. A threshold is then applied to isolate targets of interest. Different difference beam power profiles may be used for elevation comparisons and azimuth comparisons. Alternatively, subarrays may be selected such that the same difference beam power profile may be used for both elevation and azimuth. Scans may be time multiplexed such that data from different scans may be used to produce the sum beam power profile, the difference beam power profile, or both.
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公开(公告)号:EP4361663A1
公开(公告)日:2024-05-01
申请号:EP23204185.5
申请日:2023-10-17
申请人: THALES
摘要: L'invention concerne un dispositif de réception électromagnétique (1) comprenant une antenne de réception principale (10) d'un signal incident et une voie de réception principale (12) configuré pour traiter le signal incident, le dispositif de réception électromagnétique (1) comprenant une antenne de réception auxiliaire (20) et une voie de réception auxiliaire (22) reliée à ladite antenne de réception auxiliaire (20), l'antenne de réception auxiliaire (20) étant adaptée pour être disposée en direction d'un émetteur perturbateur (4) et configurée pour recevoir un signal perturbateur depuis l'émetteur perturbateur (4), la voie de réception auxiliaire (22) étant configurée pour traiter le signal perturbateur, le dispositif de réception électromagnétique (1) comprenant également un bloc de comparaison de signal et de suppression du signal perturbateur (30) apte à comparer le signal incident de la voie de réception principale (12) et le signal perturbateur et adapté pour supprimer le signal perturbateur du signal incident en fonction de ladite comparaison.
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公开(公告)号:EP4357804A1
公开(公告)日:2024-04-24
申请号:EP22201937.4
申请日:2022-10-17
申请人: NXP B.V.
IPC分类号: G01S7/02 , G01S7/35 , G01S13/34 , G01S13/58 , G01S13/931
CPC分类号: G01S7/023 , G01S13/345 , G01S7/354 , G01S7/356 , G01S13/584 , G01S13/931
摘要: A method of processing radar data comprising: receiving a mask that identifies a set of samples in received radar signalling that are detected as including interference, and comprises a matrix of data having a fast-time dimension and a slow-time dimension; receiving radar data comprising a matrix of samples of received radar signalling having a fast-time dimension and a slow-time dimension wherein the set of samples identified by the mask have been set to a predetermined value to remove said samples including interference; determining a reconstruction of the radar data in which at least the set of samples of the radar data are replaced with estimated samples, wherein said determining a reconstruction of the radar data comprises formulating an optimization problem based on the radar data and the mask, and applying an iterative method to solve the optimization problem at least in part in the range-Doppler domain.
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