公开(公告)号：US11550027B2

公开(公告)日：2023-01-10

申请号：US16865824

申请日：2020-05-04

Applicant: NXP B.V.

Inventor： Francesco Laghezza ,  Franz Lampel

IPC: G01S7/00 ,  G01S7/35 ,  G01S13/931

Abstract: A radar system is disclosed that provides joint object detection and communication capabilities. The radar system includes a communication signal generator that provides a communication signal, a pre-distortion module that applies a pre-distortion to the communication signal to provide a pre-distorted communication signal, a linear frequency modulation (LFM) signal generator that provides a LFM signal, and a mixer that mixes the pre-distorted communication signal onto the LFM signal to provide a radar signal to be transmitted by the radar system. The radar system further includes an all-pass filter that filters a plurality of de-ramped reflected images of the radar signal to provide a filtered signal. Each de-ramped reflected image includes an associated image of the pre-distorted communication signal. The all-pass filter provides a linear group delay, and a non-linear phase response. The pre-distortion is an inverse of the non-linear phase response of the all-pass filter.

公开(公告)号：US12007465B2

公开(公告)日：2024-06-11

申请号：US17505434

申请日：2021-10-19

Applicant: NXP B.V.

Inventor： Franz Lampel ,  Alessio Filippi

IPC: G01S13/00 ,  G01S7/02 ,  G01S7/28 ,  G01S13/34 ,  G01S13/931

CPC classification number: G01S13/343 ,  G01S7/023 ,  G01S7/2813 ,  G01S13/931

Abstract: A method and apparatus are provided in which receiver circuitry and signal processing circuitry may reside. The receiver circuitry receives a FMCW radar signal having a content signal (e.g., a random or information signal) embedded into a radar waveform and indicating a relationship in the FMCW radar signal between beat frequency and time delay. The signal processing circuitry may apply a filter (e.g., filtering with a group delay that approximates or relates to the relationship) that causes a residual error in, due to dispersion of, the content signal, and may account for (e.g., mitigate) the residual error by introduction of a dispersion-related function in further processing of the content signal.

公开(公告)号：US11204410B2

公开(公告)日：2021-12-21

申请号：US16272083

申请日：2019-02-11

Applicant: NXP B.V.

Inventor： Feike Guus Jansen ,  Francesco Laghezza ,  Franz Lampel

IPC: G01S7/35 ,  G01S13/34 ,  G01S13/931 ,  G01S13/87 ,  G01S7/02

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：US20230121012A1

公开(公告)日：2023-04-20

申请号：US17505434

申请日：2021-10-19

Applicant: NXP B.V.

Inventor： Franz Lampel ,  Alessio Filippi

IPC: G01S13/34 ,  G01S7/02 ,  G01S7/28 ,  G01S13/931

Abstract: According to one example, the present disclosure is directed to a method and apparatus in which such receiver circuitry and signal processing circuitry may reside The receiver circuitry receives a FMCW radar signal having a content signal (e.g., a random or information signal) embedded into a radar waveform and indicating a relationship in the FMCW radar signal between beat frequency and time delay The signal processing circuitry may apply a filter (e.g, filtering with a group delay that approximates or relates to the relationship) that causes a residual error in, due to dispersion of, the content signal, and may account for (e.g, mitigate) the residual error by introduction of a dispersion-related function in further processing of the content signal.

公开(公告)号：US20210341567A1

公开(公告)日：2021-11-04

申请号：US16865824

申请日：2020-05-04

Applicant: NXP B.V.

Inventor： Francesco Laghezza ,  Franz Lampel

IPC: G01S7/00 ,  G01S7/35 ,  G01S13/931

Abstract: A radar system is disclosed that provides joint object detection and communication capabilities. The radar system includes a communication signal generator that provides a communication signal, a pre-distortion module that applies a pre-distortion to the communication signal to provide a pre-distorted communication signal, a linear frequency modulation (LFM) signal generator that provides a LFM signal, and a mixer that mixes the pre-distorted communication signal onto the LFM signal to provide a radar signal to be transmitted by the radar system. The radar system further includes an all-pass filter that filters a plurality of de-ramped reflected images of the radar signal to provide a filtered signal. Each de-ramped reflected image includes an associated image of the pre-distorted communication signal. The all-pass filter provides a linear group delay, and a non-linear phase response. The pre-distortion is an inverse of the non-linear phase response of the all-pass filter.

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

IPC: G01S7/35 ,  G01S13/34 ,  G01S7/02 ,  G01S13/93 ,  G01S13/87

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.