-
公开(公告)号：US12050284B2
公开(公告)日：2024-07-30
申请号：US17711438
申请日：2022-04-01
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Satish Ravindran , Maik Brett
CPC classification number: G01S7/2955 , G01S7/2883 , G06F9/3877 , G06F9/545
Abstract: 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.
-
公开(公告)号：US20230204748A1
公开(公告)日：2023-06-29
申请号：US17564826
申请日：2021-12-29
Applicant: NXP B.V.
Inventor： Dongyin Ren , Ryan Haoyun Wu , Satish Ravindran
IPC: G01S13/42 , G01S13/931 , H01Q1/32
CPC classification number: G01S13/424 , G01S13/931 , H01Q1/3233 , G01S2013/93271
Abstract: A vehicle radar system, apparatus and method use a radar control processing unit to control an RF transmitter unit to generate a radiated beam by a long and medium range radar (LMRR) beam shaping antenna array which has a range coverage pattern with more power concentrated along a central direction axis for long range detection and less power spread off to sides of the central direction axis for medium range detection, wherein the LMRR beam shaping antenna array includes a plurality of transmit radiator elements stacked over a power dividing feeding network and separated by a conductive coupling aperture layer comprising a plurality of coupling apertures such that each transmit radiator element is aligned through a corresponding coupling aperture to a corresponding feeding line conductor from the power dividing feeding network.
-
公开(公告)号：US20230305111A1
公开(公告)日：2023-09-28
申请号：US17702695
申请日：2022-03-23
Applicant: NXP B.V.
Inventor： Jihwan Youn , Satish Ravindran , Ruud van Sloun , Ryan Haoyun Wu , Jun Li
CPC classification number: G01S7/417 , G06N3/0481 , G01S3/143 , G01S7/415 , G01S2013/0245
Abstract: Embodiments of systems and methods for estimating direction of arrival are disclosed. A device includes a signal processing unit that includes processing circuitry and memory coupled to the processing circuitry, where the processing circuitry includes multiple vector processing units, each vector processing unit configured to receive an antenna input vector, receive an angular spectrum vector, retrieve a first and second weighting vectors from the memory, generate a processed antenna input vector by performing a circular convolution of the antenna input vector with the first weighting vector, generate a processed angular spectrum vector by performing a circular convolution of the angular spectrum vector with the second weighting vector, and generate a refined angular spectrum vector, which indicates angular position of one or more radar targets, by applying a non-linear activation function to a sum of the processed antenna input vector and the processed angular spectrum vector.
-
公开(公告)号：US20230280446A1
公开(公告)日：2023-09-07
申请号：US17685668
申请日：2022-03-03
Applicant: NXP B.V.
Inventor： Dongyin Ren , Ryan Haoyun Wu , Satish Ravindran
Abstract: A linear chirp radar system, apparatus and method use a radar control processing unit to control an LFM radar front end which includes a frequency-scanning transmit antenna and a frequency-scanning receive antenna which respectively sweep a transmit and receive energy focus across an angle space with each linear chirp signal, where the radar control processing unit processes digital output signals generated from target return signals received in response to transmitted linear chirp signals and extracts target range-angle information by applying time-frequency analysis processing to the digital output signals to generate a first range-angle map which includes range-biased angle information, and then applying a group delay compensation process to generate a second range-angle map which includes target range-angle information that is generated by selectively adjusting the range-biased angular information in the first range-angle map with an angular adjustment.
-
Patent Agency Ranking
公开(公告)号：US12123970B2
公开(公告)日：2024-10-22
申请号：US17484119
申请日：2021-09-24
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Satish Ravindran
CPC classification number: G01S7/354 , G01S13/584 , G01S7/356
Abstract: Aspects of the present disclosure are directed to radar and radar processing. As may be implemented in accordance with one or more embodiments involving multi-input multi-output (MIMO) co-prime radar signals transmitted by a plurality of transmitters and reflected from at least one target, the reflected radar signals are processed by resolving ambiguities associated with a range-Doppler detection based on unique pulse repetition frequencies (PRF)s associated with respective chirp groups of the reflected radar signals. Phase compensation is applied to compensate for motion-induced phased biases and, thereafter, Doppler estimates are reconstructed to provide a dealiased version of the reflected radar signals.
-
公开(公告)号：US20230324509A1
公开(公告)日：2023-10-12
申请号：US17715520
申请日：2022-04-07
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Satish Ravindran
IPC: G01S7/35 , G01S13/58 , G01S13/931
CPC classification number: G01S7/354 , G01S7/356 , G01S13/584 , G01S13/931
Abstract: A linear chirp radar system, apparatus and method use a radar control processing unit to control an LFM radar front end which generates analog-to-digital (ADC) sample signals from one or more target return signals received in response to transmitted linear chirp radar signals, where the radar control processing unit is connected and configured to mitigate range migration by directly filtering the ADC samples using a modified Doppler filter that is tuned to fast-time scaled, slow-time frequencies to generate a focused ADC Doppler cube, and by applying a Fourier Transform on each Doppler cell in the focused ADC Doppler cube to generate a focused range-Doppler cube.
-
公开(公告)号：US20240289618A1
公开(公告)日：2024-08-29
申请号：US18176216
申请日：2023-02-28
Applicant: NXP B.V.
Inventor： Xupeng Chen , Satish Ravindran , Ryan Haoyun Wu
IPC: G06N3/082 , G06N3/0464
CPC classification number: G06N3/082 , G06N3/0464 , G06N3/084
Abstract: Various embodiments relate to a system and method of pruning a machine learning model, including: training the machine learning model using training input data; calculating alpha values for different parts of the machine learning model based on gradients used in training the machine learning model wherein the alpha values are an importance metric; accumulating the calculated alpha values across training iterations; and pruning the machine learning model based upon the accumulated alpha values.
-
公开(公告)号：US20230314560A1
公开(公告)日：2023-10-05
申请号：US17711438
申请日：2022-04-01
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Satish Ravindran , Maik Brett
CPC classification number: G01S7/2955 , G01S7/2883 , G06F9/545 , G06F9/3877
Abstract: 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.
-
公开(公告)号：US20230095228A1
公开(公告)日：2023-03-30
申请号：US17484119
申请日：2021-09-24
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Satish Ravindran
Abstract: Aspects of the present disclosure are directed to radar and radar processing. As may be implemented in accordance with one or more embodiments involving multi-input multi-output (MIMO) co-prime radar signals transmitted by a plurality of transmitters and reflected from at least one target, the reflected radar signals are processed by resolving ambiguities associated with a range-Doppler detection based on unique pulse repetition frequencies (PRF)s associated with respective chirp groups of the reflected radar signals. Phase compensation is applied to compensate for motion-induced phased biases and, thereafter, Doppler estimates are reconstructed to provide a dealiased version of the reflected radar signals.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.012 seconds)
