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1.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：US12072436B2
公开(公告)日：2024-08-27
申请号：US17327478
申请日：2021-05-21
发明人： Pat Sankar
IPC分类号： G01S7/288 , G01S13/02 , G01S15/32 , G01S15/36 , G01S15/58 , G01S15/89 , G01S17/58 , G01S17/89
CPC分类号： G01S7/288 , G01S13/02 , G01S15/325 , G01S15/36 , G01S15/586 , G01S15/89 , G01S17/58 , G01S17/89 , G01S7/2883
摘要： A target detection and/or high resolution RF system is provided herein in which the resolution of a legacy target angle detection (direction of arrival) system is improved without any change to the existing hardware of the legacy target detection system. Rather, the target detection and/or high resolution RF system can apply virtual aperture postprocessing to reflected signals to achieve improvements in the detection of one or more targets.
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公开(公告)号：US12050284B2
公开(公告)日：2024-07-30
申请号：US17711438
申请日：2022-04-01
申请人： NXP B.V.
发明人： Ryan Haoyun Wu , Satish Ravindran , Maik Brett
CPC分类号： G01S7/2955 , G01S7/2883 , G06F9/3877 , G06F9/545
摘要： A vehicle radar system, apparatus and method use a radar control processing unit to generate a target response signal in at least a first dimension from compressed radar data signals and to perform cell-averaging constant false alarm rate (CA-CFAR) target detection by convolving the target response signal with a weighted kernel window signal in a frequency domain using a Fast Fourier Transform hardware accelerator, an element-wise multiplier, and an Inverse Fast Fourier Transform hardware accelerator to generate an output signal having a sign that indicates a target detection decision.
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公开(公告)号：US20240125921A1
公开(公告)日：2024-04-18
申请号：US18105183
申请日：2023-02-02
申请人： Motional AD LLC
CPC分类号： G01S13/89 , G01S7/2883 , G01S7/417 , G01S13/867 , G01S13/931
摘要： Provided are methods for generation of representations of radar data. Some methods described include: receiving ADC raw data of a radar sensor of a vehicle; performing range FFT, Doppler FFT, and azimuth FFT on the ADC raw data; generating a 1D range heat map tensor representing the range FFT, a 2D RD heat map tensor representing a combination of the range FFT and the Doppler FFT, a 2D RA heat map tensor representing a combination of the range FFT and the azimuth FFT, or a 3D RAD matrix tensor representing a combination of the range FFT, the Doppler FFT, and the azimuth FFT; and inputting at least one of the 1D range heat map tensor, the 2D RD heat map tensor, the 2D RA heat map tensor, or the 3D RAD matrix tensor, to a machine learning model for detecting objects on a road network around the vehicle.
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公开(公告)号：US11835623B2
公开(公告)日：2023-12-05
申请号：US17246594
申请日：2021-05-01
申请人： HL KLEMOVE CORP.
发明人： Jingu Lee , Han Byul Lee , Jung Hwan Choi , Jae Hyun Han
IPC分类号： G01S13/931 , G01S13/58 , G01S7/41 , G01S7/288
CPC分类号： G01S13/931 , G01S7/2883 , G01S7/411 , G01S13/588 , G01S2013/9322
摘要： Various embodiments relate to a device and method for controlling vehicles and a radar system for vehicles. The vehicle controller may include a spectrum generator generating a 2D spectrum, a range-velocity map generator generating a range-velocity map corresponding to each height value included in a height set, a correlation coefficient determiner determining a correlation coefficient corresponding to each height value included in the height set, and a target determiner estimating a height of a target based on the correlation coefficient and recognizing the target based on the height of the target.
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公开(公告)号：US20240353528A1
公开(公告)日：2024-10-24
申请号：US18341296
申请日：2023-06-26
发明人： Karthik Subburaj , Anil Mani
CPC分类号： G01S7/356 , G01S7/2883 , G01S7/4056
摘要： Signal processing comprising, first, determining a plurality of fast Fourier transform (FFT) values corresponding to each sample in a plurality of signal samples, second, variably compressing ones of the FFT values at different non-zero levels of compression, and third, storing the variably compressed ones of the FFT values.
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公开(公告)号：US12123935B2
公开(公告)日：2024-10-22
申请号：US17701638
申请日：2022-03-22
CPC分类号： G01S13/282 , G01S7/2883 , G01S7/411 , G01S13/956 , H01Q3/08
摘要： The solid-state radar device includes: a transmission/reception unit configured to transmitting and receiving radio wave signals comprising a modulated signal and a non-modulated signal, which are pulse signals whose frequencies are different from each other; a frequency filter unit configured respectively to extract the modulated signal and the non-modulated signal from the received radio wave signals based on the frequencies; a pulse compression unit generating a pulse-compressed signal by pulse-compressing the modulated signal; a first echo image generation unit configured to generate a first echo image based on the non-modulated signal and the pulse-compressed signal; a wave analysis unit configured to analyze ocean wave information based on one of the non-modulated signal and the pulse-compressed signal; and a display signal generation unit configured to generate a display signal comprising the first echo image and/or the ocean wave information.
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8.发明公开公开(公告)号：US20240310479A1
公开(公告)日：2024-09-19
申请号：US18280110
申请日：2022-02-23
发明人： Lars Weisgerber , Mario Schuehler
CPC分类号： G01S7/2886 , G01S7/2883 , G01S13/0209 , G01S13/582 , H04L25/0212
摘要： An ultra-wideband sensor transmits impulse radio signals at different times and generates respective channel impulse responses that describe a respective reflected signal as a function of a path delay. The channel impulse responses are used to generate a time-variant channel impulse response in which the channel impulse responses are arranged according to the times of transmission of the respective associated impulse radio signals. At least one respective local maximum of the scatter function quantity, characterized by a respective Doppler frequency and a respective path delay, is detected in scatter functions of respective time windows. A predetermined selection method is used to select at least one local maximum as the respective observation maximum to be tracked for motion detection. A signal characteristic of the channel impulse response is generated for the respective observation maximum to be tracked and a predetermined motion detection method detects at least one predetermined movement.
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公开(公告)号：US20240192355A1
公开(公告)日：2024-06-13
申请号：US18286340
申请日：2022-06-07
发明人： Dan ZHANG , Kapil GULATI , Junyi LI , Ahmed BEDEWY , Stelios STEFANATOS
IPC分类号： G01S13/72 , G01S7/288 , G01S7/292 , G01S7/41 , G01S13/931
CPC分类号： G01S13/726 , G01S7/2883 , G01S7/2922 , G01S7/2927 , G01S7/412 , G01S13/931
摘要： This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for radar target tracking based on return signal strength. A wireless device, such as a radar device, may measure a received signal strength of a detected signal. The received signal strength may be associated with at least one bin of a radar image. The wireless device may compare the received signal strength to a filtered signal strength. The filtered signal strength may be associated with a threshold difference in signal strength from the filtered signal strength. The wireless device may track the at least one bin of the radar image in response to the received signal strength being less than or equal to the threshold difference in signal strength from the filtered signal strength.
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10.发明公开公开(公告)号：US20240176014A1
公开(公告)日：2024-05-30
申请号：US18540151
申请日：2023-12-14
发明人： Dan WANG , Sandeep RAO , Adeel AHMAD
CPC分类号： G01S13/931 , G01S7/2883 , G01S13/34 , G01S13/449 , G01S13/583 , H04B7/212
摘要： A radar system includes a set of transmitters and a processor coupled to the set of transmitters, which includes first, second, third and fourth transmitters. In operation, the processor generates a first chirp of a set of chirps, in which outputs of the first and second transmitters are modulated by a first phase and outputs of the third and fourth transmitters are modulated by a second phase; and generate a second chirp of the set of chirps, in which outputs of the first and fourth transmitters are modulated by the first phase and outputs of the second and third transmitters are modulated by the second phase.
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