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2. 发明授权

EP3444632B1 SIGNAL PROCESSING DEVICE AND RADAR APPARATUS 有权
公开(公告)号：EP3444632B1
公开(公告)日：2024-10-09
申请号：EP17782161.8
申请日：2017-03-09
IPC分类号： G01S13/95 , G01C13/00 , G01S7/292 , G01S7/41
CPC分类号： G01C13/00 , G01S13/95 , G01S13/956 , G01S7/2926 , G01S7/414 , G01S7/411 , G01S7/415 , Y02A90/10

4. 发明公开

EP4421518A1 APPARATUS AND METHOD FOR CLASSIFYING TRUE TARGET IN DOPPLER DOMAIN USING ENERGY VALUE, AND PULSE DOPPLER RADAR USING THE SAME 审中-实审
公开(公告)号：EP4421518A1
公开(公告)日：2024-08-28
申请号：EP23188106.1
申请日：2023-07-27
申请人： Agency For Defense Development
发明人： JANG, Youn Hui , YANG, Eunjung
IPC分类号： G01S7/292 , G01S7/41 , G01S13/522 , G01S13/56 , G01S13/58
CPC分类号： G01S13/522 , G01S13/56 , G01S13/581 , G01S7/2927 , G01S7/414 , G01S7/415
摘要： An apparatus for classifying a true target includes a signal processor configured to perform range processing on an input signal in a fast time direction and Doppler processing on the input signal in a slow time direction to output an output signal in a range-Doppler domain, a detector configured to output a hit by detecting a target signal within an output signal on which the range processing and the Doppler processing have been performed in the signal processor, a total energy calculator configured to calculate a total energy value of the input signal of the signal processor in the slow time direction or a total energy value which is a sum of power spectra of the output signal of the signal processor in the Doppler direction, a Doppler ratio value calculator configured to calculate a Doppler ratio value of the hit detected in the range-Doppler domain using the total energy value, and a false target remover configured to compare the Doppler ratio value with a threshold value and determine a hit having the Doppler ratio value smaller than the threshold value as a false target.

5. 发明授权

EP3757598B1 IN DEVICE INTERFERENCE MITIGATION USING SENSOR FUSION 有权
公开(公告)号：EP3757598B1
公开(公告)日：2024-08-21
申请号：EP20181924.0
申请日：2020-06-24
IPC分类号： G01S7/02 , G01S7/292 , G01S7/52 , G01S13/86
CPC分类号： G01S7/023 , G01S7/2928 , G01S13/86 , G01S15/50

6. 发明公开

EP4375706A1 POWER AND TRAFFIC OPTIMIZED METHODS OF OPERATING RF ACCESS SYSTEMS 审中-公开
公开(公告)号：EP4375706A1
公开(公告)日：2024-05-29
申请号：EP22209882.4
申请日：2022-11-28
申请人： NXP B.V.
发明人： Eber, Wolfgang , Dorian, Haslinger
IPC分类号： G01S13/58 , G01S13/62 , G01S13/10 , G01S13/20 , G01S7/35 , G01S7/292 , G01S13/87
CPC分类号： G01S13/584 , G01S13/62 , G01S13/10 , G01S13/20 , G01S7/292 , G01S13/878
摘要： There is described a method of operating an RF access system, the system comprising an anchor arranged at a predetermined location and configured to communicate with one or more key devices. The method comprises: operating the anchor in a first mode. the first mode comprising first RF ranging operations for determining a first ranging result for the anchor relative to a key device: determining whether the first ranging result fulfils a predetermined condition: if the first ranging result fulfils the predetermined condition, operating the anchor in a second mode, the second mode comprising second RF ranging operations for determining a second ranging result for the anchor relative to the key device, and RF radar operations for determining a radar result for the anchor relative to a holder of the key device; and determining position information associated with the key device based on the second ranging result and the radar result. Furthermore, a method of operating au RF access system comprising a plurality of anchors is described. Finally. RF access systems configured to perform the methods are described.

7. 发明公开

EP4254004A3 TARGET DETECTION DEVICE AND TARGET DETECTION METHOD 审中-实审
公开(公告)号：EP4254004A3
公开(公告)日：2024-04-03
申请号：EP23185249.2
申请日：2015-05-29
申请人： Mitsubishi Electric Corporation
发明人： SHIMAZU, Yasuaki
IPC分类号： G01S13/18 , G01S7/292 , G01S13/10
摘要： A target detection device, comprising a signal transmit/receive unit (1-5) configured to emit a transmission pulse (21) high pulse repetition frequency to air by a transmit/receive antenna (5), and to receive a received signal (22) being a reflection wave of the transmission pulse by the transmit/receive antenna; and a target detection unit (6-14) configured to perform A/D conversion on the received signal; set a plurality of range gates (26) to be sequentially shifted in terms of time based on a sampling clock (25), each of the plurality of range gates defining a data acquisition position, the plurality of range gates are also set to overlap the transmission pulse; output, simultaneously for the plurality of range gates that are set, target detection signals each having a signal intensity that is variable depending on a ratio of received data obtained through the A/D conversion of the received signal to the each of the plurality of range gates in terms of time; suppress clutter outside a band frequency of the extracted signal from each of the range gates (26) which is transmitted to a corresponding digital filter (9), wherein the digital filters (9) suppress the clutter respectively; and output a signal indicating that target detection is positive based on the signal intensity of each of the target detection signals in which the clutter is suppressed, wherein based on the sampling clock (25), each of the range gates (26) is set sequentially shifted from the adjacent range gates, that is, are shifted in the time axis direction so that the adjacent range gates partially overlap each other, wherein the target detection unit (6-12) comprising a largest value detection processing section (12) that is configured to detect a target detection signal having a largest signal intensity among each of signal intensities simultaneously obtained for each of the plurality of range gates, and to output the target detection signal having the largest signal intensity as a target signal indicating a detected target.

8. 发明公开

EP4300131A1 AUTOMATIC OPTIMIZATION OF OBSTACLE DETECTION 审中-实审
公开(公告)号：EP4300131A1
公开(公告)日：2024-01-03
申请号：EP23179952.9
申请日：2023-06-19
申请人： Trimble Inc.
发明人： CHENG, Juan , STERLING, Thomas , VOLLATH, Ulrich , SIGHTS, Brandon
IPC分类号： G01S7/292 , G01S7/40 , G01S7/41 , G01S13/42 , G01S13/86 , G01S13/931 , G01S17/42 , G01S17/86 , G01S17/931
摘要： Disclosed are techniques for automatically optimizing radar filter parameters. In embodiments, radar sensor data is captured from a radar sensor on a moving machine/vehicle. The radar sensor data is filtered using radar filter parameters to produce filtered radar sensor data. Radar obstacle points are produced from the filtered radar sensor data. Lidar sensor data is captured from a lidar sensor on the moving machine. Lidar obstacle points are produced from the lidar sensor data. The radar filter parameters are optimized using the lidar obstacle points.

9. 发明公开

EP4300130A1 DATA PROCESSING DEVICE AND RADAR DEVICE 审中-实审
公开(公告)号：EP4300130A1
公开(公告)日：2024-01-03
申请号：EP22759812.5
申请日：2022-02-25
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： NAKAMIZO, Takamichi , SAKAMAKI, Hiroshi
IPC分类号： G01S7/292 , G01S13/53
摘要： There is obtained a data processing device capable of reducing a low frequency component in an input data sequence more as compared with the prior art in a case where the number of data points of the input data sequence is small. The data processing device includes a virtual data sequence generator to extrapolate an approximate line 32 approximating a temporal change of an input data sequence 31 being inputted from outside and is a sequence of data at time points of a predetermined first number that are arranged in succession with at a predetermined time interval to a head or a tail of input data sequence 31 and to generate a virtual data sequence 33 being a sequence of data representing values on extrapolated approximate line 32 at time points of a predetermined second number that are arranged in succession with the time interval, the time points including a time point being adjacent to input data sequence 31, a data sequence connector 9 to generate a processed data sequence 34 being a data sequence in which virtual data sequence 33 is connected to input data sequence 31 on a side where approximate line 32 of input data sequence 21 is extrapolated, an infinite impulse response (IIR) filter 3 to output a data sequence in which a low frequency component is reduced from a data sequence that is inputted, and a data sequence inputter to input data included in processed data sequence 34 to IIR filter 3 sequentially.

10. 发明公开

EP4253991A1 ASYMMETRICAL FREQUENCY-DIVISION MULTIPLEXING FOR RADAR SYSTEMS 审中-实审转让
公开(公告)号：EP4253991A1
公开(公告)日：2023-10-04
申请号：EP22200283.4
申请日：2022-10-07
申请人： Aptiv Technologies Limited
发明人： Li, Zhengzheng , Rogers, Stuart , Zheng, Le
IPC分类号： G01S7/02 , G01S7/292 , G01S7/35 , G01S13/931 , G01S13/32 , G01S13/26
摘要： Techniques and systems for asymmetrical frequency-division multiplexing, FDM, for radar systems (100). In some examples, a radar system (100) includes multiple transmitters (112), multiple receivers (114), multiple polyphase shifters (116), and a processor (118). The transmitters can transmit electromagnetic, EM, signals in an FDM scheme. The receivers can receive EM signals reflected by one or more objects (110) that include multiple channels. The polyphase shifters can introduce at least four potential phase shifts. The processor can control the polyphase shifters to introduce phase shifts asymmetrically spaced in a frequency spectrum. The processor can determine, using residue estimation and subtraction, potential detections of the objects. In this way, the described asymmetrical FDM for radar systems can support many simultaneous MIMO channels, increase the dynamic range of the radar system, resolve Doppler ambiguities, and provide an efficient processing scheme.

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