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31. 发明授权

EP3494408B1 FAILURE DETECTION IN A RADAR SYSTEM 有权
公开(公告)号：EP3494408B1
公开(公告)日：2022-11-09
申请号：EP17837825.3
申请日：2017-08-07
发明人： SUBBURAJ, Karthik , NAYYAR, Jasbir, Singh , RAMASUBRAMANIAN, Karthik
IPC分类号： G01S13/931 , G01S7/35 , G01S7/40 , G01S13/34

32. 发明授权

EP3851869B1 RADAR SYSTEM 有权
公开(公告)号：EP3851869B1
公开(公告)日：2022-09-21
申请号：EP20152111.9
申请日：2020-01-16
发明人： GUARIN ARISTIZABAL, Gustavo Adolfo , SION, Arnaud , WU, Ryan Haoyun
IPC分类号： G01S7/40 , G01S13/34 , G01S13/87 , G01S7/35 , G01S13/931

33. 发明公开

EP4053585A1 FREQUENCY DIVISION MULTIPLEXING WITH POLYPHASE SHIFTERS 审中-实审转让
公开(公告)号：EP4053585A1
公开(公告)日：2022-09-07
申请号：EP22150642.1
申请日：2022-01-10
申请人： Aptiv Technologies Limited
发明人： Li, Zhengzheng , Gianelli, Christopher D.
IPC分类号： G01S7/35 , G01S13/00 , G01S13/26 , G01S13/32 , G01S13/58 , G01S13/931 , G01S13/02
摘要： This document describes techniques and systems for frequency division multiplexing (FDM) with polyphase shifters. A radar system can include transmitters, receivers, polyphase shifters, and a processor. The transmitters emit electromagnetic (EM) signals in an FDM scheme, and the receivers detect EM signals reflected by objects. The received EM signals include multiple channels. The processor controls the polyphase shifters to introduce phase shifts to the EM signals. The processor can also divide a Doppler-frequency spectrum of the received EM signals into multiple sectors representing a respective frequency range. Each channel is associated with a respective sector. The processor can determine, using non-coherent integration across the sectors, potential detections of the objects, including aliased and actual detections. The processor can then determine the actual detections. In this way, the described FDM techniques with polyphase shifters can resolve Doppler ambiguities in received EM signals.

34. 发明公开

EP4050372A1 RADAR-BASED DETECTION USING ANGLE OF ARRIVAL ESTIMATION BASED ON PRUNED SPARSE LEARNING OF SUPPORT VECTOR 审中-公开
公开(公告)号：EP4050372A1
公开(公告)日：2022-08-31
申请号：EP22157124.3
申请日：2022-02-16
申请人： NXP B.V.
发明人： Wu, Ryan Haoyun , Li, Jun , Brett, Maik , Staudenmaier, Michael Andreas
IPC分类号： G01S13/42 , G01S7/35 , G01S13/34 , G01S13/931
摘要： In various examples, a radar system includes a logic circuit with a memory array for processing radar reflection signals. In a specific example, a method includes generating output data indicative of the reflection signals' amplitudes, and discerning angle-of-arrival information for the output data for the output data by correlating the output data with an iteratively-refined estimate of a sparse spectrum support vector ("support vector"). The estimate includes: iteratively updating a set of parameters associated with previous values of the support vector including a covariance estimate, and a statistical expectation among a plurality of support vectors; and pruning, for each iterative update, certain of the plurality of support vectors having amplitudes which are insignificant relative to the statistical expectation of the support vector of in a preceding iteration.

35. 发明公开

EP4042195A1 SYSTEM AND METHOD FOR SENSING DISTANCE AND/OR MOVEMENT USING COMMUNICATION OVERLAY 无效
公开(公告)号：EP4042195A1
公开(公告)日：2022-08-17
申请号：EP20797008.8
申请日：2020-10-07
申请人： Transrobotics, Inc.
发明人： ALALUSI, Sayf
IPC分类号： G01S13/28 , G01S7/00 , G01S7/03 , G01S7/35 , G01S7/288 , H04L27/00 , G01S13/88 , G01S7/40

36. 发明公开

EP4040182A1 RADAR SIGNAL PROCESSING DEVICE, RADAR DEVICE, RADAR SIGNAL PROCESSING METHOD AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 审中-公开
公开(公告)号：EP4040182A1
公开(公告)日：2022-08-10
申请号：EP22152023.2
申请日：2022-01-18
申请人： FURUNO ELECTRIC CO., LTD.
发明人： FUMIYA, Nakatani
IPC分类号： G01S7/35
摘要： A radar signal processing device (100) is provided. The radar signal processing device (100) includes an extracted signal generator (31), a converter (32) and an integrated data generator (33). The extracted signal generator (31) generates a processing signal based on a beat signal of a transmission signal and a reception signal, and generates a plurality of extracted beat signals by applying a plurality of window functions on the processing signal. The converter (32) converts the plurality of extracted beat signals to amplitude data indicating a relationship between a distance and an amplitude. The extracted signal generator (31) integrates a plurality of the amplitude data into integrated data.

37. 发明公开

EP4036602A1 RADAR DATA PROCESSING FOR VEHICLE EGO-MOTION ESTIMATION 审中-公开
公开(公告)号：EP4036602A1
公开(公告)日：2022-08-03
申请号：EP21154386.3
申请日：2021-01-29
申请人： Aptiv Technologies Limited
发明人： Leßmann, Stephanie , Iurgel, Uri , Doerr, Wolfgang
IPC分类号： G01S13/60 , G01S7/35 , G01S7/288 , G01S7/41 , G01S13/34 , G01S13/44 , G01S13/58 , G01S13/87 , G01S13/931
摘要： A method of determining ego-motion information of a vehicle comprising a radar sensor having a plurality of antenna elements, comprising: acquiring (S410) motion spectrum comprising a plurality of data elements, each calculated for a respective one of a plurality of Doppler bin indices and for a respective one of a plurality of spatial bin indices, each spatial bin index indicating a respective angle-of-arrival of a radar return signal at the radar sensor; and determining (S420) the ego-motion information by solving a motion equation system comprising equations of motion generated using the motion spectrum data and each relating a respective value indicating a radial velocity, a respective value indicating an angular displacement, and a variable indicating a velocity of the vehicle.

38. 发明公开

EP4024077A1 METHODS AND SYSTEM FOR COMPRESSING RADAR DATA 审中-实审转让
公开(公告)号：EP4024077A1
公开(公告)日：2022-07-06
申请号：EP21150055.8
申请日：2021-01-04
申请人： Aptiv Technologies Limited
发明人： LABUSCH, Sven , KOSSACKY, Igor , MEUTER, Mirko , ROESLER, Simon
IPC分类号： G01S7/35 , G01S13/34 , G01S13/42 , G01S13/58 , G01S13/931
摘要： A computer implemented method for compressing radar data comprises the following steps carried out by computer hardware components: acquiring radar data comprising a plurality of Doppler bins; determining which of the plurality of Doppler bins represent stationary objects; and determining compressed radar data based on the determined Doppler bins which represent stationary objects.

39. 发明公开

EP4019999A1 RADAR BASED SYSTEM FOR PROCESSING RADAR DATA REPRESENTING RANGE AND RADIAL VELOCTY OF A DETECTED OBJECT 有权
公开(公告)号：EP4019999A1
公开(公告)日：2022-06-29
申请号：EP21213077.7
申请日：2021-12-08
申请人： Robin Radar Facilities BV
发明人： Westra, Hylke Jurjen Lijsbert , Portegijs, Bart , Hamminga, Siete
IPC分类号： G01S7/04 , G01S7/35 , G01S7/41 , G01S13/42 , G01S13/89 , G01S13/72 , G01S13/58
摘要： A Doppler type radar system (101) is provided holding processing circuitry (102). The processing circuitry is configured to provide scan data representing range cells within image lines, wherein an image line represents a single azimuth orientation and one or more beam lines with an orientation in elevation, each image line representing one or more beam lines each holding a number of range cells, and wherein a detected object is represented by a number of hit range cells in one or more beam lines in one or more image lines. The processing circuitry is configured to selecting a hit range cell or a number of neighboring hit range cells within at least a first beam line within a first image line of a first radar image, and to generate two-dimensional range-Doppler matrices for a plurality of neighboring beam lines within image lines within the first radar image, which neighboring beam lines include the first beam line. The processing circuitry is configured to generate a first, a second and a third cropped range-Doppler matrix, wherein the first cropped matrix is based at least partly on a first plurality of neighboring matrix cells selected from a first un-cropped range-Doppler matrix representing at least one selected hit range cell within the first beam line within the first image line, the second cropped matrix is based at least partly on a second plurality of neighboring matrix cells selected from a second un-cropped range-Doppler matrix representing a second beam line, the third cropped matrix is based at least partly on a third plurality of neighboring matrix cells selected from a third un-cropped range-Doppler matrix representing a third beam line. The processing circuitry is configured to generate a three-dimensional data array based at least partly on the first, second and third cropped two-dimensional range-Doppler matrices. The data of the three-dimensional data array may be used as input for a neural network.

40. 发明公开

EP4001955A1 METHOD FOR ROBUST RADAR DETECTION AND DIGITALLY MODULATED RADAR 审中-公开
公开(公告)号：EP4001955A1
公开(公告)日：2022-05-25
申请号：EP21208119.4
申请日：2021-11-15
申请人： Imec VZW
发明人： Bauduin, Marc , Bourdoux, Andre
IPC分类号： G01S7/02 , G01S7/03 , G01S7/288 , G01S7/35 , G01S13/28 , G01S13/32 , G01S13/58
摘要： A method of this disclosure comprises a step of generating (104) a radar signal in digital domain along at least one transmission path, the radar signal comprises a number of M periodic repetitions of a code sequence with a length Lc, multiplied with a progressive phase rotation

where Lc and M are integers, K is an integer or a non-integer, and n is a discrete time index corresponding to a code rate. The method further comprises a step of generating (105) a process input signal in digital domain along at least one receiving path from a digitized reflection signal corresponding to the radar signal by multiplying the digitized reflection signal with a progressive phase rotation

In this context, K is defined such that a ratio

is a non-integer, and M is defined such that a ratio

is an integer. Additionally or alternatively, K is defined such that a ratio

is a non-integer, and M is defined such that a ratio

is an integer, if the code sequence is a Zadoff code sequence.

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