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公开(公告)号：US12123938B2
公开(公告)日：2024-10-22
申请号：US17931301
申请日：2022-09-12
CPC分类号： G01S13/505 , G01S7/28 , G01S7/4095
摘要： Systems and methods for modulation and demodulation using a micro-Doppler effect are described. In an embodiment, the method includes radiating, using a picosecond pulse generator with an antenna, a train of THz pulses that form a frequency comb, where the frequency comb is reflected from an object such that the frequency several tones in the frequency comb are shifted based on the speed of the object and demodulating the reflected frequency comb to recover a THz Doppler signature of the object.
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2.发明公开公开(公告)号：US20240111025A1
公开(公告)日：2024-04-04
申请号：US18531103
申请日：2023-12-06
申请人： NVIDIA Corporation
发明人： Tilman Wekel , Sangmin Oh , David Nister , Joachim Pehserl , Neda Cvijetic , Ibrahim Eden
IPC分类号： G01S7/48 , G01S7/481 , G01S17/894 , G01S17/931 , G06V10/764 , G06V10/80 , G06V10/82 , G06V20/58
CPC分类号： G01S7/4802 , G01S7/481 , G01S17/894 , G01S17/931 , G06V10/764 , G06V10/80 , G06V10/82 , G06V20/58 , G01S7/28
摘要： In various examples, a deep neural network (DNN) may be used to detect and classify animate objects and/or parts of an environment. The DNN may be trained using camera-to-LiDAR cross injection to generate reliable ground truth data for LiDAR range images. For example, annotations generated in the image domain may be propagated to the LiDAR domain to increase the accuracy of the ground truth data in the LiDAR domain—e.g., without requiring manual annotation in the LiDAR domain. Once trained, the DNN may output instance segmentation masks, class segmentation masks, and/or bounding shape proposals corresponding to two-dimensional (2D) LiDAR range images, and the outputs may be fused together to project the outputs into three-dimensional (3D) LiDAR point clouds. This 2D and/or 3D information output by the DNN may be provided to an autonomous vehicle drive stack to enable safe planning and control of the autonomous vehicle.
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公开(公告)号：US11907622B2
公开(公告)日：2024-02-20
申请号：US16912851
申请日：2020-06-26
发明人： Tim Benneckenstein
摘要： The invention relates to a versatile generation of radar signals for simulating a radar scenario. Radar signals may be generated by multiple RF output paths having different frequency ranges. Pulse descriptive words of radar signal simulation data are split into multiple groups according to the frequency or frequency range of the RF output paths and the split data are provided to the related RF output path.
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公开(公告)号：USRE49619E1
公开(公告)日：2023-08-22
申请号：US17394286
申请日：2021-08-04
发明人： Takaaki Kishigami , Junji Sato
CPC分类号： G01S7/28 , G01S13/325 , H01Q21/061 , H01Q25/00 , G01S2013/0254
摘要： A plurality of transmission antennas include Nt1 transmission antennas arranged in a first direction and Nt2 transmission antennas arranged in a second direction orthogonal to the first direction, a plurality of reception antennas include Na1 reception antennas arranged in the first direction and Na2 reception antennas arranged in the second direction. In the first direction, an inter-element space between any two of the Nt1 transmission antennas and an inter-element space between any two of the Na1 reception antennas are each a value which is a product of a first space and an integer and are all values different from each other, and in the second direction, an inter-element space between any two of the Nt2 transmission antennas and an inter-element space between any two of the Na2 reception antennas are each a value which is a product of a second space and an integer and are all values different from each other.
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公开(公告)号：US09983294B2
公开(公告)日：2018-05-29
申请号：US14761610
申请日：2013-02-01
CPC分类号： G01S7/28 , G01S13/345 , G01S13/536 , G01S13/58 , G01S13/584 , G01S13/66 , G01S13/931 , G01S2013/9375
摘要： A stationary object decision processing unit 14 decides whether range R and Doppler frequency fd corresponding to peaks detected by the peak detection processing unit 13 satisfy geometric positional relationships between a radar and a stationary object. If they satisfy the geometric positional relationships, it recognizes that the object associated with the peaks is a stationary object. Thus, even if the number of peaks detected by the peak detection processing unit 13 increases, it can accurately decide whether the object associated with the peaks is a stationary object or not with a small amount of calculation.
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6.发明申请公开(公告)号：US20180125456A1
公开(公告)日：2018-05-10
申请号：US15790474
申请日：2017-10-23
申请人： KONICA MINOLTA, INC.
CPC分类号： A61B8/488 , A61B8/5207 , A61B8/5269 , A61B8/54 , A61B8/56 , G01S7/28 , G01S15/8979
摘要： Control device 10 of an ultrasound diagnostic apparatus includes a hardware processor that sets, among a plurality of operation modes in which pulse waveforms of ultrasound pulses to be transmitted are different from one another, at least first and second operation modes for which observation results are to be simultaneously displayed on a screen, sets at least one operation type that defines transmission timing of ultrasound pulses, and sets a switching frequency of a switching signal.
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公开(公告)号：US20180074182A1
公开(公告)日：2018-03-15
申请号：US14829577
申请日：2015-08-18
申请人： Navico Holding AS
发明人： Lindsay Lilburn , Roger Phillips , Ee Chen
CPC分类号： G01S13/282 , G01S7/28 , G01S7/282 , G01S13/0209 , G01S13/28 , G01S13/30 , G01S13/42 , G01S13/9307
摘要： Various implementations described herein are directed to multiple ranges for pulse compression radar. In one implementation, a method may include transmitting a first burst for a first range using a pulse compression radar system, where the first burst comprises one or more first pulse signals. The method may also include transmitting a second burst for a second range using the pulse compression radar system after transmitting the first burst, where the second burst comprises one or more second pulse signals. The method may further include repeating a transmission of the first burst using the pulse compression radar system after transmitting the second burst.
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公开(公告)号：US20180052237A1
公开(公告)日：2018-02-22
申请号：US15240438
申请日：2016-08-18
IPC分类号： G01S17/95
CPC分类号： G01S17/95 , B64D15/20 , B64D45/00 , G01S7/026 , G01S7/28 , G01S7/4818 , G01S7/483 , G01S7/499 , G01S13/865 , G01S13/953 , H01P1/161 , H01P1/173 , H01Q5/22 , H01Q13/02 , Y02A90/18 , Y02A90/19
摘要： Apparatus and associated methods relate to determining, based on a detected portion of a projected pulse of quasi-optical energy backscattered by water particles within a divergent projection volume of a cloud atmosphere, properties of the backscattering water particles. The pulse of quasi-optical energy is projected into the divergent projection volume of the cloud atmosphere. The divergent projection volume is defined by an axis of projection and an angle of projection about the axis of projection. The portion of the projected pulse of optical energy backscattered by water particles within the divergent projection volume of the cloud atmosphere is received and detected. Various properties of the backscattering water particles, which can be determined from the detected portion of the projected pulse backscattered by water particles can include particle density and/or particle size.
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公开(公告)号：US09869766B1
公开(公告)日：2018-01-16
申请号：US14608071
申请日：2015-01-28
CPC分类号： G01S13/95 , G01S7/003 , G01S7/28 , G01S7/2813 , G01S7/292 , G01S13/106 , G01S13/22 , G01S13/87 , G01S13/951 , G01S13/953 , G01S13/955
摘要： Systems and methods for controlling a weather radar system are provided. A system for controlling a weather radar system includes a communications system including a transmitter-receiver and a processor. The transmitter-receiver is configured to receive first weather data from an external location. The first weather data includes a first weather condition, a location of the first weather condition, and a time of sensing the first weather condition. The processor includes a control module coupled with the communications system and configured to determine a point of interest based on the first weather data; acquire, by controlling an onboard weather radar system, second weather data at the point of interest; provide data representative of weather near the point of interest based at least in part on the second weather data; and transmit, by the transmitter-receiver, the data representative of weather near the point of interest to an external weather radar system.
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公开(公告)号：US20170346468A1
公开(公告)日：2017-11-30
申请号：US15600427
申请日：2017-05-19
发明人： YUKIO OKAZAKI , KAZUTOSHI SATOU , NORIAKI SAITO
CPC分类号： H03K3/014 , G01S7/023 , G01S7/032 , G01S7/28 , G01S13/288 , G01S13/88 , G01S13/931 , G06F1/04 , G06F1/3203 , H03K3/353
摘要： A radar apparatus includes a transmitter including a plurality of circuits that intermittently transmit one or more radar signals, the plurality of circuits being suspended power supplying during a period in which the one or more radar signals are not transmitted, variation detection circuitry that detects process variations of the plurality of circuits, and determination circuitry that determines a startup timing of each of the plurality of circuits in response to the process variations and outputs startup commands in response to the determined startup timings to the plurality of circuits.
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