-
公开(公告)号：US11709225B2
公开(公告)日：2023-07-25
申请号：US16906655
申请日：2020-06-19
Applicant: NXP B.V.
Inventor： Marco Jan Gerrit Bekooij , Feike Guus Jansen
CPC classification number: G01S7/354 , G01S7/4056 , G01S13/723 , G01S13/9047 , G01S7/356
Abstract: Exemplary aspects are directed to or involve a radar transceiver to transmit signal and receive reflected radar signals via a communication channel. The exemplary method includes radar receiver data processing circuitry that may be used to differentiate a subset of representations of the received signals. This differentiation may be used to select signals that are more indicative of target(s) having a given range than other ones of the received signals. The received signal's representations may then be compressed by using variable-mantissa floating-point numbers having mantissa values that vary based, at least in part, on at least one strength characteristic of the respective representations.
-
公开(公告)号：US20210373144A1
公开(公告)日：2021-12-02
申请号：US16888139
申请日：2020-05-29
Applicant: NXP B.V.
Inventor： Navid Amani , Alessio Filippi , Feike Guus Jansen
Abstract: Aspects of the present disclosure are directed to radar signaling utilizing a non-uniform multi input/multi output (MIMO) antenna array including first and second uniform MIMO antenna arrays respectively having both sparsely-arranged transmitting antennas and sparsely-arranged receiving antennas. Communication circuitry is configured to determine a direction of arrival of reflections of radar signals transmitted by the transmitting antennas and received by the receiving antennas, by comparing the reflections received by the first MIMO array with the reflections received by the second MIMO array during a common time period (e.g., at the same time). Using this approach, the antenna arrays may be utilized to provide co-prime spacing/elements and to suppress ambiguities in received reflections based on alignment thereof.
-
公开(公告)号：US20200256948A1
公开(公告)日：2020-08-13
申请号：US16272083
申请日：2019-02-11
Applicant: NXP B.V.
Inventor： Feike Guus Jansen , Francesco Laghezza , Franz Lampel
Abstract: Aspects of the present disclosure are directed to a method and/or apparatus involving frequency modulated continuous wave (FMCW) radar signals. As my be implemented in accordance with one or more embodiments, receiver circuitry is configured and arranged to receive a FMCW radar signal having an information signal embedded into a radar waveform, and to indicate a relationship in the FMCW radar signal between beat frequency magnitude and time delay. A filter processing circuit is configured and arranged to filter the information signal in the FMCW radar signal by applying a group delay function based on the relationship between beat frequency magnitude and time delay. Signal processing circuitry is configured and arranged to detect a remote object by using the filtered FMCW radar signal.
-
公开(公告)号：US10379210B2
公开(公告)日：2019-08-13
申请号：US15195267
申请日：2016-06-28
Applicant: NXP B.V.
Inventor： Feike Guus Jansen
Abstract: A radar system comprising a transmitter controller, configured to control an oscillator such that the oscillator provides a transmit-radar-signal a transmit-first-overlapping-portion and a transmit-second-overlapping-portion that corresponds to the instantaneous frequency of the transmit-first-frequency-overlapping-portion. The transmitter controller is configured to reconfigure the oscillator from a first-operating-mode to a second-operating-mode between a transmit-first-ramp-frequency-portion and a transmit-second-ramp rising-frequency-portion. The radar system also includes a receiver controller configured to receive a received-radar-signal that represents a reflected version of the transmit-radar-signal, and provide a combined-overlapping-portion based on a combination of the transmit-first-overlapping-portion, the transmit-second-overlapping-portion, a received-first-overlapping-portion, and a received-second-overlapping-portion.
-
公开(公告)号：US20160131752A1
公开(公告)日：2016-05-12
申请号：US14538541
申请日：2014-11-11
Applicant: NXP, B.V.
Inventor： Feike Guus Jansen , Alessio Filippi , Zoran Zivkovic
CPC classification number: G01S13/42 , G01S7/02 , G01S7/28 , G01S13/343 , G01S13/582 , G01S13/584 , G01S13/878 , G01S2007/356
Abstract: Various exemplary embodiments relate to a method for detecting an object using radar system having M transmit antennas, N receive antennas, and a processor, including: receiving, by the processor, N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals; processing the N×M digital signals to produce N×M first range/relative velocity matrices; applying a phase compensation to N×(M−1) first range/relative velocity matrices to compensate for a difference in range between the N×(M−1) first range/relative velocity matrices and the Mth range/velocity matrix; decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers; detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector.
Abstract translation: 各种示例性实施例涉及使用具有M个发射天线，N个接收天线和处理器的雷达系统来检测对象的方法，包括：由处理器接收N×M个数字信号，其中N个接收机接收对应于M个接收信号的M个接收信号 到编码的发送信号的M个序列，得到N×M个数字信号; 处理N×M数字信号以产生N×M个第一范围/相对速度矩阵; 对N×（M-1）个第一范围/相对速度矩阵施加相位补偿以补偿N×（M-1）个第一范围/相对速度矩阵与第M个范围/速度矩阵之间的范围差; 使用发射编码的逆来解码N个接收机的M相补偿范围/相对速度矩阵，以产生用于N个接收机的M个解码的相位范围/相对速度矩阵; 使用M个范围/相对速度矩阵来检测物体，以产生检测向量。
-
Patent Agency Ranking
公开(公告)号：US12287391B2
公开(公告)日：2025-04-29
申请号：US17818016
申请日：2022-08-08
Applicant: NXP B.V.
Inventor： Arie Geert Cornelis Koppelaar , Marco Jan Gerrit Bekooij , Francesco Laghezza , Feike Guus Jansen , Yiting Lu
Abstract: An apparatus configured to receive an input dataset, x, indicative of radar signals reflected from targets as received at a plurality of antenna elements; define a matrix, A, formed of direction-of-arrival-angle vectors, an, each direction-of-arrival-angle vector representing an expected response at the plurality of antenna elements of radar signals from one of the targets; define a signal amplitude vector s to represent expected complex amplitudes as received in the radar signals; define an objective function based on x, A and s; search for a set of direction of arrival angles for each of the plurality of targets by the repeated evaluation of the objective function for a plurality of candidate matrices based on matrix A; and wherein said search space comprises a plurality of discrete points, z, associated with the direction of arrival angles by a function of sin(θk).
-
17.发明授权公开(公告)号：US12123966B2
公开(公告)日：2024-10-22
申请号：US17533906
申请日：2021-11-23
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Feike Guus Jansen , Michael Andreas Staudenmaier , Maik Brett
IPC: G01S7/02 , G01S7/40 , G01S7/4865 , G01S13/931
CPC classification number: G01S7/023 , G01S7/4026 , G01S7/4865 , G01S13/931
Abstract: Described are method and systems that implement time frequency domain threshold interference and localization fusion to resolve interference issues in an automotive radar system, that produces spectrograms using Short-Time Fourier Transform (STFT) for all receiving antennas of the automotive radar system. For each STFT frequency a suppression threshold is determined. Interference is isolated for each STFT frequency by removing the interference from samples that are above the suppression threshold by using a filter. Direction of Arrival (DoA) is estimated for each interference spectrogram cell using measurements from all the receiving antennas. Interference samples are clustered using the DoA into epochs of chirps.
-
公开(公告)号：US20230280447A1
公开(公告)日：2023-09-07
申请号：US18174279
申请日：2023-02-24
Applicant: NXP B.V.
Inventor： Francesco Laghezza , Feike Guus Jansen
CPC classification number: G01S7/354 , G01S13/584 , G01S13/931
Abstract: In accordance with a first aspect of the present disclosure, a radar system is provided, comprising: a plurality of receive channels; a first radar detector stage configured to detect, through said receive channels, at least one target using a detector threshold; a noise correlation determination unit configured to determine a noise correlation level indicative of noise correlation between the receive channels if the first radar detector stage has detected the target; a detector threshold adjustment unit configured to adjust the detector threshold in dependence on the noise correlation level determined by the noise correlation determination unit; a second radar detector stage configured to detect the target using the adjusted detector threshold. In accordance with a second aspect of the present disclosure, a corresponding method of operating a radar system is conceived.
-
公开(公告)号：US11525908B2
公开(公告)日：2022-12-13
申请号：US16790319
申请日：2020-02-13
Applicant: NXP B.V.
Inventor： Francesco Laghezza , Feike Guus Jansen
IPC: G01S13/58 , G01S13/34 , G01S7/35 , G01S7/41 , G01S13/536
Abstract: Embodiments are directed to a method for determining velocity of an object. The method includes in response to two interleaved chirp sequences being sent towards the object, processing responsive chirps of each of the two interleaved chirp sequences independently from one another to produce respective Doppler-spectrum data sets, and calculating the velocity of the object based on the respective Doppler-spectrum data sets. Each of the interleaved chirp sequences being characterized by a common time spacing between respective chirps of the respective chirp sequence, and each chirp of one of the chirp sequences being offset by an amount of time that is different than the common time spacing.
-
公开(公告)号：US11460567B2
公开(公告)日：2022-10-04
申请号：US16888139
申请日：2020-05-29
Applicant: NXP B.V.
Inventor： Navid Amani , Alessio Filippi , Feike Guus Jansen
Abstract: Aspects of the present disclosure are directed to radar signaling utilizing a non-uniform multi input/multi output (MIMO) antenna array including first and second uniform MIMO antenna arrays respectively having both sparsely-arranged transmitting antennas and sparsely-arranged receiving antennas. Communication circuitry is configured to determine a direction of arrival of reflections of radar signals transmitted by the transmitting antennas and received by the receiving antennas, by comparing the reflections received by the first MIMO array with the reflections received by the second MIMO array during a common time period (e.g., at the same time). Using this approach, the antenna arrays may be utilized to provide co-prime spacing/elements and to suppress ambiguities in received reflections based on alignment thereof.
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.017 seconds)
