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公开(公告)号：US12130377B2
公开(公告)日：2024-10-29
申请号：US17302295
申请日：2021-04-29
发明人： Xinjie Yang , Nan Zhang , Roberto Rimini , Danlu Zhang
CPC分类号： G01S7/352 , G01S13/584 , H04W88/02
摘要： In some aspects, a radar device may receive a received signal comprising a reflected frequency modulated continuous wave (FMCW) radar signal and interference. The radar device may identify the reflected FMCW radar signal based at least in part on performing a phase based search procedure to facilitate removing the interference from the received signal. The radar device may perform an action based at least in part on a characteristic of the identified reflected FMCW radar signal. Numerous other aspects are described.
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2.发明公开公开(公告)号：US20240353529A1
公开(公告)日：2024-10-24
申请号：US18404133
申请日：2024-01-04
CPC分类号： G01S7/356 , G01S7/2883 , G01S13/584
摘要： Some aspects of the present disclosure relate a radar system including a radio frequency (RF) receiver that receives radar data on a plurality of receive antennas. A fast Fourier transform (FFT) circuit is coupled to the RF receiver. The FFT circuit performs a FFT on the radar data to provide a plurality of Range-Doppler coordinate pairs that pertain to the plurality of receive antennas. An integration block is coupled to the FFT circuit, and sums multiple Range-Doppler coordinate pairs for respective Doppler bins to provide a plurality of Range-Doppler sums. The integration block also sums multiple Range-Doppler sums within the plurality of Range-Doppler sums to provide an integration result. The multiple Range-Doppler coordinate pairs that are summed are spaced apart from one another by a Doppler offset.
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公开(公告)号：US12117515B2
公开(公告)日：2024-10-15
申请号：US17833083
申请日：2022-06-06
发明人： Daniel Flores Tapia
CPC分类号： G01S13/325 , G01S7/354 , G01S13/342 , G01S13/347
摘要： Processing of a fractalet radio detection and ranging (RADAR) signal is described. A reference fractalet waveform is received. The fractalet waveform includes self-similar waveforms having lower frequency bands and frequency bands. A reflected fractalet waveform received via one or more antennae is decoded. A waveform profile of chirplet transforms of signals in the lower frequency bands within the reflected fractalet waveform are compared to the reference fractalet waveform. Time spans corresponding to the subset of lower frequency bands are determined. Signals from the higher frequency bands are extracted from the reflected fractalet waveform. Chirplet transforms for the extracted signals from the higher frequency bands are determined for the determined time spans. Spatial frequency components along azimuth direction and elevation directions are calculated for targets based on the chirplet transforms for the extracted signals from the higher frequency bands.
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公开(公告)号：US12111417B2
公开(公告)日：2024-10-08
申请号：US17623743
申请日：2020-06-04
申请人： Robert Bosch GmbH
发明人： Daniel Schindler , Robert Nabholz , Juergen Hasch
CPC分类号： G01S7/354 , H04L27/2647 , G01S7/356 , G01S13/584
摘要： An OFDM radar sensor including multiple transmission channels and at least one reception channel, and a method for operating such an OFDM radar sensor. At least for first transmission channels, the signal form of the signal to be transmitted, which includes a sequence of OFDM symbols in question, is progressively computed in portions for each transmission channel, and multiple buffer memories are used in alternation for storing a computed portion of the signal form and for reading out a previously computed and stored preceding portion of the signal form, which is converted from digital to analog and transmitted. A particular portion of the signal form is computed and stored in one of the buffer memories while a preceding portion of the signal form is being read out from another of the buffer memories and converted from digital to analog, and transmitted on the transmission channel in question.
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公开(公告)号：US12111385B2
公开(公告)日：2024-10-08
申请号：US17560440
申请日：2021-12-23
发明人： Daniel Flores Tapia
IPC分类号： G01S13/44 , G01S7/35 , G01S13/00 , G01S13/931
CPC分类号： G01S13/4409 , G01S7/352 , G01S13/003 , G01S13/931
摘要： Techniques and architectures for managing radar sensor processing chains. A first high-frequency radio signal is received with a first RF receiver in the plurality of RF sensor suites on a host platform. The received high-frequency radio signal is converted to a lower second frequency range. A chirplet transform is performed on the signal in the second frequency range. Stored relative location information for a second RF receiver in the plurality of RF sensor suites is retrieved. Radar waveform information corresponding to the second RF receiver in a processing stream corresponding to the first RF receiver is extracted by utilizing the retrieved information and results from the chirplet transform. A point cloud is generated based on the converted signal in the second frequency range and the extracted radar waveform information.
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公开(公告)号：US12105219B2
公开(公告)日：2024-10-01
申请号：US18107862
申请日：2023-02-09
发明人： James R. Carswell , Torry L. Akins
IPC分类号： G01S7/295 , G01S7/02 , G01S7/282 , G01S7/285 , G01S7/288 , G01S7/35 , G01S13/02 , G01S13/22 , G06F1/12 , G06F3/00 , G06F13/42
CPC分类号： G01S7/295 , G01S7/02 , G01S7/282 , G01S7/288 , G06F1/12 , G06F3/00 , G06F13/4221 , G01S7/285 , G01S7/356 , G01S2013/0245 , G01S13/225 , G06F2213/0026
摘要： The present disclosure relates to digital signal processing architectures, and more particularly to a modular object-oriented digital system architecture ideally suited for radar, sonar and other general purpose instrumentation which includes the ability to self-discover modular system components, self-build internal firmware and software based on the modular components, sequence signal timing across the modules and synchronize signal paths through multiple system modules.
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公开(公告)号：US20240310481A1
公开(公告)日：2024-09-19
申请号：US18183263
申请日：2023-03-14
发明人： David Addison , Dyson Wilkes , Markus Bichl , Sandeep Vangipuram
CPC分类号： G01S7/356 , G01S13/584
摘要： A baseband processor including a fast Fourier transform (FFT) circuit having an FFT input and an FFT output. A first processing path having a first processing path input and a first processing path output. The first processing path including a memory coupled to the FFT output and the first processing path input via a first bus. A Direct Memory Access (DMA) coupled between the memory and the first processing path output. The DMA coupled to the memory via a second bus. A second processing path arranged in parallel with the first processing path. The second processing path including a detection circuit having a detection circuit input coupled to the FFT output and having a detection circuit output coupled to the DMA.
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公开(公告)号：US20240288539A1
公开(公告)日：2024-08-29
申请号：US18655894
申请日：2024-05-06
申请人： UHNDER, INC.
IPC分类号： G01S7/35 , G01S7/40 , G01S13/32 , G01S13/36 , 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 multi-chip MIMO radar system includes a plurality of transmitters and a plurality of receivers. Each of the pluralities of transmitters and receivers are arranged across a plurality of chips. The multi-chip MIMO radar system is configured to provide an exemplary chip synchronization such that the transmitters and receivers of each chip of the radar system are synchronized with the transmitters and receivers of every other chip of the radar system.
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公开(公告)号：US20240280681A1
公开(公告)日：2024-08-22
申请号：US18646218
申请日：2024-04-25
发明人： Takaaki KISHIGAMI
CPC分类号： G01S13/347 , G01S7/352 , G01S13/325 , G01S7/356
摘要： A radar apparatus includes signal generation circuitry, which, in operation, generates a plurality of transmission signals transmitted at different transmission start timings, and transmission circuitry, which, in operation, applies different phase rotations to a first transmission signal and a second transmission signal among the plurality of transmission signals and transmits the first transmission signal and the second transmission signal from different transmission antennas. A transmission start timing of the second transmission signal is later than a transmission start timing of the first transmission signal. A part of the first transmission signal and a part of the second transmission signal are transmitted in a first period. A modulation frequency of the first transmission signal at a first timing included in the first period differs from a modulation frequency of the second transmission signal at the first timing.
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公开(公告)号：US12066534B2
公开(公告)日：2024-08-20
申请号：US17824467
申请日：2022-05-25
CPC分类号： G01S17/04 , G01S7/41 , G01S17/88 , G01S7/354 , G01S7/356 , G01S7/4008 , G01S7/4021 , G01S7/415
摘要： A method for determining spin of a projectile comprising generating an electromagnetic radar signal and transmitting the electromagnetic radar signal towards a projectile. Receiving a reflected electromagnetic radar signal from the projectile. Identifying a component of the reflected electromagnetic radar signal, and performing an autocorrelation process on the reflected electromagnetic radar signal using the component to generate an estimate of a spin of the projectile as a function of the autocorrelation process.
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