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公开(公告)号：US11668790B2
公开(公告)日：2023-06-06
申请号：US17329470
申请日：2021-05-25
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Michael Andreas Staudenmaier , Maik Brett
CPC classification number: G01S7/356 , G01S7/411 , G01S13/347 , G01S13/505
Abstract: Aspects of the disclosure are directed to apparatuses, systems and methods for radar processing. As may be implemented in accordance with one or more aspects herein, an apparatus may include receiver circuitry to receive and sample radar signals reflected from a target, and processing circuitry to carry out the following. Representations of the reflections are transformed into the time-frequency domain where they are oversampled. The oversampled representations of the reflections are inversely transformed to provide resampled reflections. Positional characteristics of the target may then be ascertained by constructing a range response characterizing the target based on the resampled reflections.
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公开(公告)号：US20230053001A1
公开(公告)日：2023-02-16
申请号：US17387128
申请日：2021-07-28
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Michael Andreas Staudenmaier , Maik Brett
Abstract: Aspects of the present disclosure are directed to radar signal processing apparatuses and methods. As may be implemented in accordance with one or more embodiments, digital signals representative of received reflections of radar signals transmitted towards a target are mathematically processed to provide or construct a matrix pencil based on or as a function of a forward-backward matrix. Eigenvalues of the matrix pencil are computed and an estimation of the direction of arrival (DoA) of the target is output based on the computed eigenvalues.
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公开(公告)号：US20250020790A1
公开(公告)日：2025-01-16
申请号：US18349243
申请日：2023-07-10
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Jun Li , Dongyin Ren
Abstract: A radar system includes a processor and a non-transitory computer-readable medium storing machine instructions. The processor obtains an ego velocity Vego of a radar system, a range R of an object in an environment of the radar system, and a radial velocity Vr of the object. The processor determines a simplified two-dimensional (2D) angular search grid and performs a grid-based direction-of-arrival algorithm using the simplified 2D angular search grid. In some implementations, the processor determines a ring of possible positions for a stationary object based on the ego velocity Vego, the range R, and the radial velocity Vr, and includes the ring of possible positions in the simplified 2D angular search grid. In some implementations, the processor determines an arc of possible positions for a moving object based on the range R, and includes the arc of possible positions in the simplified 2D angular search grid.
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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.
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公开(公告)号：US12066520B2
公开(公告)日：2024-08-20
申请号：US17233952
申请日：2021-04-19
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Wendi Zhang , René Geraets
CPC classification number: G01S13/581 , G01S7/2923
Abstract: Aspects of the present disclosure are directed to radar communications with disparate pulse repetition intervals, as may be implemented with radar transmission, receiver and processing circuitry. As may be utilized in accordance with one or more embodiments herein, time division multiplexing (TDM) multi-input multi-output (MIMO) radar signals are transmitted by transmitting sets of successive radar signals, each set having a pulse repetition interval (PRI) that is different than the PRI of sets of radar signals transmitted in another one of the sets. Positional characteristics of a target may be ascertained based on the PRI used in each of the sets and on phase characteristics of ones of the radar signals reflected from the target.
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Patent Agency Ranking
公开(公告)号：US20240192353A1
公开(公告)日：2024-06-13
申请号：US18064072
申请日：2022-12-09
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren
IPC: G01S13/60 , G01S13/58 , G01S13/931
CPC classification number: G01S13/60 , G01S13/584 , G01S13/931 , G01S2013/93271
Abstract: A radar system includes transmitter and receiver antennas positioned to illuminate and receive reflections from a ground surface, a processor, and a non-transitory computer-readable medium. The processor obtains ground reflections, the corresponding ranges, and measured radial velocities, and determines a set of test ego velocities. For each test ego velocity and ground reflection, the processor generates a test radial velocity. The processor determines an absolute difference between the test radial velocity and the measured radial velocity, and whether the absolute difference satisfies a criterion. In response to satisfying the criterion, the absolute difference is accumulated into a total cost for the test ego velocity. After each ground reflection and test ego velocity is analyzed, the processor compares the total costs for the test ego velocities to obtain a smallest total cost and corresponding test ego velocity. The test ego velocity is an ego velocity of the radar system.
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17.发明授权公开(公告)号：US11927664B2
公开(公告)日：2024-03-12
申请号：US17185115
申请日：2021-02-25
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Jun Li , Maik Brett , Michael Andreas Staudenmaier
CPC classification number: G01S13/04 , G01S7/41 , G01S2013/0245
Abstract: In one example, a radar circuit uses computer processing circuitry for processing data corresponding to reflection signals via a sparse array. Output data indicative of signal magnitude associated with the reflection signals is generated, and then angle-of-arrival information is discerned therefrom by (e.g., iteratively): correlating the output data with at least one spatial frequency support vector indicative of a correlation peak for the output data; generating upper-side and lower-side support vectors which are neighbors along the spatial frequency spectrum for said at least one spatial frequency support vector, and providing, via a correlation of the upper-side and lower-side support vectors and said at least one spatial frequency support vector, at least one new vector that is more refined along the spatial frequency spectrum for said at least one spatial frequency support vector.
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公开(公告)号：US11822005B2
公开(公告)日：2023-11-21
申请号：US17186750
申请日：2021-02-26
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Wendi Zhang , René Geraets
CPC classification number: G01S7/354 , G01S13/583
Abstract: Aspects of the present disclosure are directed toward apparatuses and/or methods involving the communication of radar signals. Certain aspects involve communicating time division multiplexing (TDM) multi-input multi-output (MIMO) radar signals, having pulses with a chirp interval time (CIT) that is different for respective chirps. Positional characteristics of a target may be ascertained based upon both the CIT between each chirp in the communicated radar signals and the time between each corresponding chirp in received ones of the signals reflected by the target. Communication of the radar signals may involve utilizing a combination of antennas to provide a virtual aperture.
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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.
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公开(公告)号：US20230305104A1
公开(公告)日：2023-09-28
申请号：US18182763
申请日：2023-03-13
Applicant: NXP B.V.
Inventor： Andries Pieter Hekstra , Alessio Filippi , Arie Geert Cornelis Koppelaar , Ryan Haoyun Wu , Dongyin Ren , Feike Guus Jansen , Jeroen Overdevest , Joerg Heinrich Walter Wenzel
CPC classification number: G01S7/354 , G01S13/584 , G01S7/356
Abstract: A radar receiver comprising: an ADC (510) that samples analogue intermediate frequency, IF, signalling in order to generate digital signalling, wherein the digital signalling comprises a plurality of digital-values; a digital processor that populates a 2-dimensional array of bin-values based on the digital-values, such that: a first axis of the 2-dimensional array is a fast time axis and a second axis of the 2-dimensional array is a slow time axis; and a sampling-rate-adjuster that is configured to set a sampling rate associated with the bin-values in the 2-dimensional array based on an index of the slow time axis. The digital processor also performs DFT calculations on the bin-values in the 2-dimensional array along the fast time axis and the slow time axis in order to determine the range and velocity of any detected objects.
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