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公开(公告)号：US12055652B2
公开(公告)日：2024-08-06
申请号：US17371392
申请日：2021-07-09
IPC分类号： G01S13/93 , G01S7/02 , G01S13/32 , G01S13/34 , G01S13/931
CPC分类号： G01S7/0234 , G01S13/325 , G01S13/343 , G01S13/931
摘要： In accordance with an embodiment, a radar device includes transmit circuitry configured to emit a radar signal including a plurality of frames each comprising a respective sequence of chirps. The transmit circuitry is further configured to wirelessly emit information about the radar signal to a surrounding environment. The information indicates at least one of a positioning of sequential chirps with respect to each other for at least one of the plurality of frames and a positioning of sequential frames with respect to each other in the radar signal.
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2.发明公开公开(公告)号：US20240045047A1
公开(公告)日：2024-02-08
申请号：US16683154
申请日：2019-11-13
申请人： MOVANO INC.
发明人： Michael A. LEABMAN
CPC分类号： G01S7/292 , G01S7/023 , G01S13/325 , G01S7/282
摘要： A method for operating a stepped frequency radar system is disclosed. The method involves receiving digital frequency control signals that correspond to different frequencies of radio frequency (RF) signals, and performing stepped frequency scanning across a frequency range using at least one transmit antenna and a two-dimensional array of receive antennas and RF signals at the different frequencies that correspond to the digital frequency control signals.
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公开(公告)号：US11860263B2
公开(公告)日：2024-01-02
申请号：US17136430
申请日：2020-12-29
发明人： Oded Bialer , Amnon Jonas
CPC分类号： G01S13/325 , G01S7/354 , G01S7/356
摘要： A system for detecting and estimating a property of an object based on radar includes a signal generator configured to generate a code sequence for a plurality of transmitters configured to emit radar signals over a selected time frame, the code sequence including a plurality of codes, each code of the plurality of codes having a different code length, each code repeated in the code sequence according to a repetition frequency, and each transmitter configured to emit a radar signal based on the code sequence. The system also includes a receiver configured to detect return signals from reflections of the emitted radar signal, and a processing device configured to estimate a property of an object based on the detected return signals.
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公开(公告)号：US11846696B2
公开(公告)日：2023-12-19
申请号：US17164966
申请日：2021-02-02
申请人： UHNDER, INC.
发明人： Raghunath K. Rao , Curtis Davis , Monier Maher , Steve Borho , Nikhilesh Bhagat , Jean P. Bordes
IPC分类号： G01S13/34 , G01S7/40 , G01S7/41 , G01S13/10 , G01S13/38 , G01S13/28 , G01S13/931 , G01S13/58 , G01S7/292 , G01S7/35 , G01S13/32 , G01S7/288 , G01S13/522 , G01S13/90
CPC分类号： G01S13/34 , G01S7/288 , G01S7/2921 , G01S7/354 , G01S7/4004 , G01S7/415 , G01S13/10 , G01S13/288 , G01S13/325 , G01S13/38 , G01S13/522 , G01S13/582 , G01S13/584 , G01S13/9011 , G01S13/931 , G01S7/2883 , G01S7/356 , G01S2013/93271 , G01S2013/93272
摘要： A radar system including a transmitter configured for installation and use with the radar system and configured to transmit radio signals. The transmitted radio signals are defined by a spreading code. The radar system also includes a receiver configured for installation and use with the radar system and configured to receive radio signals that include transmitted radio signals transmitted by the transmitter and reflected from objects in an environment. The receiver is configured to convert the received radio signals into frequency domain received samples. The receiver is also configured to correlate the frequency domain received samples to detect object distance.
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公开(公告)号：US11808886B2
公开(公告)日：2023-11-07
申请号：US17045540
申请日：2019-04-05
发明人： Tero Kiuru , Mervi Hirvonen , Mikko Metso
IPC分类号： G01S7/41 , G01S7/292 , G01S13/32 , G01S13/42 , G01S13/48 , G01S13/524 , G01S13/534 , G01S13/89 , G01S13/88
CPC分类号： G01S7/415 , G01S7/2925 , G01S13/325 , G01S13/426 , G01S13/48 , G01S13/5242 , G01S13/534 , G01S13/89 , G01S7/417 , G01S13/886
摘要： According to an example aspect of the present invention, there is provided monitoring living facilities by a multichannel radar. A field of view within a frequency range from 1 to 1000 GHz, for example between 1 to 30 GHz, 10 to 30 GHz, 30 to 300 GHz or 300 to 1000 GHz, is scanned using a plurality of radar channels of the radar. Image units comprising at least amplitude and phase information are generated for a radar image on the basis of results of the scanning. Information indicating at least one error source of a physical movement of the radar and interrelated movements of targets within the field of view are determined on the basis of the image units. Results of the scanning are compensated on the basis of the determined error source. A radar image is generated on the basis of the compensated results.
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公开(公告)号：US11808880B2
公开(公告)日：2023-11-07
申请号：US18083497
申请日：2022-12-17
申请人： AyDeeKay LLC
发明人： Jian Bai , Nader Rohani
IPC分类号： G01S7/35 , G01S13/931 , G01S13/32
CPC分类号： G01S7/35 , G01S13/325 , G01S13/931
摘要： An automotive radar system includes multiple radar antennas and a radar front end chip. The front end chip includes a plurality of phase rotators coupled to a local oscillator, wherein each phase rotator of the plurality of phase rotators is coupled to multiple digital phase modulators; a plurality of switches that couple selectable ones of the multiple digital phase modulators to respective amplifiers, each amplifier coupled to a respective antenna output; and a controller which provides digital control signals to the plurality of phase rotators, the multiple digital phase modulators, and the plurality of switches to synthesize transmit signals for each of the multiple radar antennas.
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公开(公告)号：US11796669B2
公开(公告)日：2023-10-24
申请号：US17594600
申请日：2020-04-24
发明人： Jungah Lee
IPC分类号： G01S13/87 , G01S7/02 , G01S13/32 , H04B7/0413 , H04B7/06 , G01S13/42 , G01S13/931
CPC分类号： G01S13/878 , G01S7/0234 , G01S13/325 , G01S13/426 , G01S13/931 , H04B7/0413 , H04B7/0617 , H04B7/0682 , H04B7/0695 , G01S7/023
摘要： An advanced system and method is provided. The advanced system and method comprises: a set of antennas including a set of transmit antennas and a set of receive antennas; a digital beamformer; and a processor operably connected to the set of antennas and the digital beamformer, the processor configured to; identify a set of orthogonal multiple-input-multiple-output (MIMO) signals, generate a first set of beams via the digital beamformer, and map the set of orthogonal MIMO signals into each of the generated set of beams. The advanced system and method further comprises a transceiver operably connected to the processor, the transceiver configured to: transmit, to a target scene via the set of transmit antenna of the set of antennas, a first signal based on the first set of beams; and receive, via the set of receive antennas of the set of antennas, a second signal based on a second set of beams that is reflected or backscattered from the target scene.
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公开(公告)号：US11681017B2
公开(公告)日：2023-06-20
申请号：US16815320
申请日：2020-03-11
申请人： UHNDER, INC.
发明人： Richard Behrens , Frederick Rush , Monier Maher , Murtaza Ali
IPC分类号： G01S7/35 , G01S13/32 , G01S13/36 , G01S7/40 , G01S13/931
CPC分类号： G01S7/354 , G01S7/40 , G01S7/4017 , G01S13/325 , G01S13/36 , G01S7/356 , G01S7/358 , G01S13/931
摘要： A radar sensing system includes a transmitter and a receiver. The transmitter is configured to transmit a radio signal. The receiver is configured to receive radio signals that include the transmitted radio signal reflected from objects in the environment. The transmitter and receiver are configured to distribute the signal power over frequency so that it is separated from noise and impairments at DC and low frequencies as may be caused by some radar system components which introduce DC offsets and/or low frequency (e.g. flicker) noise.
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公开(公告)号：US09971020B1
公开(公告)日：2018-05-15
申请号：US15892764
申请日：2018-02-09
申请人： UHNDER, INC.
发明人： Monier Maher , Curtis Davis , Frederick Rush , Aria Eshraghi
CPC分类号： G01S13/931 , G01S7/032 , G01S7/285 , G01S7/352 , G01S7/354 , G01S7/4017 , G01S7/4021 , G01S13/06 , G01S13/325 , G01S13/34 , G01S13/42 , G01S13/584 , G01S13/64 , G01S13/87 , G01S13/878 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , G06F7/724 , G11C11/409
摘要： A radar system includes transmitters and receivers configured for installation and use in a vehicle. The transmitters transmit radio signals. The receivers receive radio signals that include the transmitted radio signals reflected from objects in an environment. Each receiver has an RF front end, an analog-to-digital converter (ADC), a digital signal processor, and a controller. The digital signal processor processes the data from the ADC and stores data samples in a buffer. The buffer operates in several modes defined by the controller. These modes include replay mode, loopback mode, quiet mode, and throttle mode. By controlling the buffer, the same received samples can be processed in multiple ways to generate information on targets at different ranges and velocities. The buffer is read out and the data is processed further to enable the radar system to determine range, velocity, and angle of targets in the environment.
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公开(公告)号：US20180100919A1
公开(公告)日：2018-04-12
申请号：US15837585
申请日：2017-12-11
申请人： Amtech Systems, LLC
CPC分类号： G01S13/08 , G01S13/325 , G01S13/36 , G01S13/584 , G01S13/75 , G01S13/84 , G01S13/878 , G01S13/91 , G06K7/10366 , G06K7/10425
摘要： A system is described for measuring distance between an RFID reader and an RFID backscatter tag, including an adaptive linear combiner, which is a tapped delay line with controllable weights on each tap, and outputs that are summed and subtracted from a reference to produce an error signal. After a sufficient number of cycles, the weight distribution indicates the delay of the received signal with respect to the reference, and by extension determines the distance between the tag and receiver.
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