公开(公告)号：US12032089B2

公开(公告)日：2024-07-09

申请号：US16923916

申请日：2020-07-08

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Franz Pernkopf ,  Johanna Rock ,  Wolfgang Roth ,  Mate Andras Toth

IPC: G01S7/295 ,  G01S7/02 ,  G01S7/282 ,  G01S7/41 ,  G01S13/02 ,  G06N3/063 ,  G06N3/08 ,  G06N3/084 ,  G06N5/04 ,  G06N5/046 ,  G01S7/35 ,  G01S13/34 ,  G01S13/44 ,  G01S13/58 ,  G01S13/931 ,  G06N3/045

CPC classification number: G01S7/023 ,  G01S7/282 ,  G01S7/295 ,  G01S7/417 ,  G01S13/02 ,  G06N3/063 ,  G06N3/084 ,  G06N5/046 ,  G01S7/352 ,  G01S7/354 ,  G01S7/356 ,  G01S13/343 ,  G01S13/4454 ,  G01S13/584 ,  G01S13/931 ,  G06N3/045

Abstract: A radar device may include a radar receiver to receive a radio frequency (RF) radar signal and generate a digital signal based on the RF radar signal. The digital signal may comprise a plurality of signal segments. The radar device may include a neural network comprising a plurality of layers to process the plurality of signal segments. Each layer of the plurality of layers may have one or more neurons. The plurality of layers may process the plurality of signal segments using weighting factors having values selected from a predetermined set of discrete values. At least one neuron in an output layer of the plurality of layers may provide an output value that indicates whether a respective signal segment or a sample, associated with the at least one neuron, is overlaid with an interfering signal.

公开(公告)号：US11215692B2

公开(公告)日：2022-01-04

申请号：US16356385

申请日：2019-03-18

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin ,  Paul Meissner ,  Alexander Melzer

IPC: G01S7/02 ,  G01S13/34 ,  G01S13/931 ,  G01S7/35 ,  G01S7/41

Abstract: A method for use in a radar device is described herein. In accordance some implementations, the method includes generating an RF oscillator signal which includes frequency-modulated chirps, amplitude-modulating the RF oscillator signal by a modulation signal, and transmitting the amplitude-modulated RF oscillator signal via at least one antenna. In some implementations, the method may further include receiving an RF signal that includes frequency-modulated chirp echo signals from a target object, down-converting the received RF signal into a base band using the RF oscillator signal for providing a base band signal, and processing the base band signal to detect information included in the modulation signal.

公开(公告)号：US11867836B2

公开(公告)日：2024-01-09

申请号：US17869255

申请日：2022-07-20

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Thomas Gigl

IPC: G01S7/48 ,  G01S7/4861 ,  G01S7/4865 ,  G01S17/42 ,  G01S17/26

CPC classification number: G01S7/4808 ,  G01S7/4804 ,  G01S7/4861 ,  G01S7/4865 ,  G01S17/26 ,  G01S17/42

Abstract: A method of determining a temporal position of a received signal within a sample series is disclosed. The method includes sampling a sensor at a sampling frequency to generate the sample series. A matched filter set of matched filters is applied to the sample series to generate a matched filter correlation set of matched filter correlations, wherein impulse responses of respective matched filters correspond to a template signal at the sampling frequency of the sensor shifted by a sub-interval shift. The matched filter correlations are evaluated to determine a received signal sub-interval shift. The temporal position of the received signal within the sample series is determined based on at least the received signal sub-interval shift.

公开(公告)号：US11422249B2

公开(公告)日：2022-08-23

申请号：US16855174

申请日：2020-04-22

Applicant: Infineon Technologies AG

Inventor： Andre Roger ,  Farhan Bin Khalid ,  Paul Meissner ,  Dian Tresna Nugraha ,  Romain Ygnace

IPC: G01S13/58 ,  G01S7/35 ,  G01S7/00 ,  G01S13/931

Abstract: The present disclosure relates to a radar device including a first radar-IC for processing first receive signals from first antennas of an antenna array, wherein the first radar-IC is configured to determine a first range-Doppler map based on the first receive signals, and to determine a first subregion of the first range-Doppler map based on criteria of interest. The radar device also includes at least a second radar-IC for processing second receive signals from second antennas of the antenna array, wherein the second radar-IC is configured to determine a second range-Doppler map based on the second receive signals, and to determine a second subregion of the second range-Doppler map based on the criteria of interest. A data interface is configured to forward information indicative of the first and/or the second subregions to a common processor for further processing.

公开(公告)号：US11209523B2

公开(公告)日：2021-12-28

申请号：US16370095

申请日：2019-03-29

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Alexander Melzer

IPC: G01S7/35 ,  G01S13/34 ,  G01S13/53 ,  G01S13/931

Abstract: A method for a radar apparatus is described. According to one example implementation, the method involves receiving a multiplicity of chirp echoes from transmitted radar signals and generating a digital signal based on the multiplicity of chirp echoes. In this case, each chirp echo has an associated subsequence of the digital signal. The method further involves performing a filtering in the time domain for one or more subsequences. The filtering in this case involves the decomposition of the subsequence into a plurality of components (referred to as principal components), the selection of a subset of components from the plurality of components and the reconstruction of a modified subsequence based on the selected subset of the component.

公开(公告)号：US11754667B2

公开(公告)日：2023-09-12

申请号：US17450346

申请日：2021-10-08

Applicant: Infineon Technologies AG

Inventor： Alexander Melzer ,  Paul Meissner ,  Mate Andras Toth

IPC: G01S7/02 ,  G01S7/35

CPC classification number: G01S7/023 ,  G01S7/0232 ,  G01S7/352

Abstract: In accordance with an embodiment, a method of operating a radar system includes activating a transmitter to transmit a radar signal during a first time period, receiving a reflection of the radar signal from a radar antenna, downconverting the reflected radar signal, and digitally processing the downconverted reflected radar signal within a first frequency bandwidth using a first signal path. The method also includes deactivating the transmitter during a second time period, receiving a second signal from the radar antenna during the second time period, downconverting the second signal, measuring a power of the downconverted second signal within a second frequency bandwidth using a second signal path different from the first signal path, and determining an interference metric based on measuring the power.

公开(公告)号：US11693085B2

公开(公告)日：2023-07-04

申请号：US16656726

申请日：2019-10-18

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Alexander Melzer ,  Mate Andras Toth

IPC: G01S7/02 ,  G01S7/35 ,  G01S13/02 ,  G01S13/34 ,  G01S13/00

CPC classification number: G01S7/023 ,  G01S7/354 ,  G01S13/0209 ,  G01S13/34 ,  G01S7/358 ,  G01S13/343

Abstract: A method is described that can be used in a radar system. In accordance with one exemplary embodiment, the method includes calculating a first spectrum, which represents a spectrum of a segment of a complex baseband signal. The segment is assignable to a specific chirp of a chirp sequence contained in a first RF radar signal. The method further includes estimating a second spectrum, which represents a spectrum of an interference signal contained in the complex baseband signal, based on a portion of the first spectrum that is assigned to negative frequencies.

公开(公告)号：US10969463B2

公开(公告)日：2021-04-06

申请号：US16157252

申请日：2018-10-11

Applicant: Infineon Technologies AG

Inventor： Alexander Melzer ,  Mario Huemer ,  Paul Meissner ,  Alexander Onic ,  Rainer Stuhlberger ,  Fisnik Sulejmani ,  Matthias Wagner

IPC: G01S7/02 ,  G01S13/34 ,  G01S13/58 ,  G01S13/931 ,  G01S13/00

Abstract: A method for processing radar data is described herein. In accordance with one embodiment, the method includes the calculation of a Range Map based on a digital radar signal received from a radar receiver. The Range Map includes spectral values for a plurality of discrete frequency values and a plurality of discrete time values, wherein each spectral value is represented by at least a first parameter. Further, the method includes applying an operation to at least the first parameters in the Range Map for at least one discrete frequency value to smooth or analyze at least a portion of the Range Map.

公开(公告)号：US20190293749A1

公开(公告)日：2019-09-26

申请号：US16356385

申请日：2019-03-18

Applicant: Infineon Technologies AG

Inventor： Grigory ITKIN ,  Paul Meissner ,  Alexander Melzer

IPC: G01S7/02 ,  G01S13/34 ,  G01S7/35 ,  G01S7/41 ,  G01S13/93

Abstract: A method for use in a radar device is described herein. In accordance some implementations, the method includes generating an RF oscillator signal which includes frequency-modulated chirps, amplitude-modulating the RF oscillator signal by a modulation signal, and transmitting the amplitude-modulated RF oscillator signal via at least one antenna. In some implementations, the method may further include receiving an RF signal that includes frequency-modulated chirp echo signals from a target object, down-converting the received RF signal into a base band using the RF oscillator signal for providing a base band signal, and processing the base band signal to detect information included in the modulation signal.

公开(公告)号：US11789114B2

公开(公告)日：2023-10-17

申请号：US17115540

申请日：2020-12-08

Applicant: Infineon Technologies AG

Inventor： Andre Roger ,  Markus Bichl ,  Maximilian Eschbaumer ,  Farhan Bin Khalid ,  Paul Meissner

IPC: G01S7/35 ,  G01S13/56 ,  G01S13/536 ,  G01S7/02 ,  G01S13/931

CPC classification number: G01S7/354 ,  G01S7/023 ,  G01S13/536 ,  G01S13/56 ,  G01S13/931

Abstract: A method for the use in a radar system comprises: receiving an RF radar signal; down-converting the received RF radar signal into a base band using a frequency-modulated local oscillator signal including a scanning chirp having a higher bandwidth than a regular chirp bandwidth; generating a digital base band signal based on the down-converted RF radar signal, the digital base band signal including a sequence of samples associated with the scanning chirp; identifying, in the sequence of samples, impaired samples, which are affected by interference; and selecting—based on the position of the impaired samples within the sequence of samples—a sub-band, which has the regular chirp bandwidth, for transmitting chirps of chirp frame used for measurement data acquisition.