公开(公告)号：US11681011B2

公开(公告)日：2023-06-20

申请号：US15930173

申请日：2020-05-12

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Mate Andras Toth

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

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

Abstract: The description below relates to a method for a radar system that can be used to detect perturbations in the received radar signal. According to an example implementation, the method comprises providing a digital radar signal using a radar receiver, wherein the digital radar signal comprises a multiplicity of segments; calculating an envelope signal that represents the envelope of a segment of the digital radar signal; and ascertaining a time of the onset of an interference signal contained in the considered segment of the digital radar signal by using at least one statistical parameter of the envelope signal.

公开(公告)号：US11442145B2

公开(公告)日：2022-09-13

申请号：US16364505

申请日：2019-03-26

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Thomas Gigl

IPC: G01S7/48 ,  G01S7/486 ,  G01S17/10 ,  G01S17/42 ,  G01S7/4865 ,  G01S7/4861 ,  G01S17/26

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：US20220026521A1

公开(公告)日：2022-01-27

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

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：US11016171B2

公开(公告)日：2021-05-25

申请号：US16266523

申请日：2019-02-04

Applicant: Infineon Technologies AG

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

IPC: G01S7/292 ,  G01S13/93 ,  G01S13/34 ,  G01S13/931 ,  G01S7/35 ,  G01S7/02 ,  G01S7/36 ,  G01S7/40 ,  G01S13/12 ,  G01S13/534

Abstract: A radar method is described herein. In accordance with one embodiment the method includes receiving a plurality of chirp echoes of transmitted radar signals, generating a digital signal based on the plurality of chirp echoes, and calculating a range map based on the digital signal. The range map includes a plurality of values, each value is represented by an amplitude value and a phase value, and each value is associated with one frequency bin of a set of frequency bins and one chirp echo of the plurality of chirp echoes. The method further includes identifying chirp echoes which are affected by interference and determining, for one or more selected frequency bins, corrected phase values based on phase values that are associated with chirp echoes not identified as affected by interference.

公开(公告)号：US20190317205A1

公开(公告)日：2019-10-17

申请号：US16385392

申请日：2019-04-16

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Markus Haltmeier ,  Farhan Bin Khalid ,  Andre Roger ,  Johannes Sappl

IPC: G01S13/58 ,  H03M7/30 ,  G01S13/34 ,  G01S7/35 ,  G01S13/93

Abstract: A method for generating a compact representation of radar data, includes determining at least one data peak within a multi-dimensional representation of radar data; and compressing radar data samples of the multi-dimensional representation within a limited neighborhood around the at least one data peak to generate the compact representation.

公开(公告)号：US11907829B2

公开(公告)日：2024-02-20

申请号：US17121295

申请日：2020-12-14

Applicant: Infineon Technologies AG

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

IPC: G06N3/063 ,  G06N3/04 ,  G01S7/41 ,  G01S7/35 ,  G06N3/048 ,  G01S13/58 ,  G06N3/084 ,  G01S7/02 ,  G06N3/045 ,  G01S13/34 ,  G01S13/44 ,  G01S13/931

CPC classification number: G06N3/063 ,  G01S7/417 ,  G06N3/04 ,  G01S7/023 ,  G01S7/352 ,  G01S7/354 ,  G01S7/356 ,  G01S13/343 ,  G01S13/4454 ,  G01S13/584 ,  G01S13/931 ,  G06N3/045 ,  G06N3/048 ,  G06N3/084

Abstract: A radar device may include a radar transmitter to output a radio frequency (RF) transmission signal including a plurality of frequency-modulated chirps. The radar device may include a radar receiver to receive an RF radar signal, and generate, based on the RF radar signal, a dataset including a set of digital values, the dataset being associated with a chirp or a sequence of successive chirps. The radar device may include a neural network to filter the dataset to reduce an interfering signal included in the dataset, the neural network being a convolutional neural network. At least one layer of the neural network may be a complex-valued neural network layer includes complex-valued weighting factor, where the complex-valued neural network layer is configured to perform one or more operations according to a complex-valued computation.

公开(公告)号：US11885903B2

公开(公告)日：2024-01-30

申请号：US16817385

申请日：2020-03-12

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Elmar Messner ,  Franz Pernkopf ,  Johanna Rock ,  Mate Andras Toth

IPC: G01S7/02 ,  G01S7/41 ,  G01S7/35 ,  G06N3/045 ,  G01S13/931 ,  G01S7/36 ,  G06N3/08 ,  G01S13/34

CPC classification number: G01S7/023 ,  G01S7/354 ,  G01S7/417 ,  G01S7/356 ,  G01S7/36 ,  G01S13/343 ,  G01S13/931 ,  G06N3/045 ,  G06N3/08

Abstract: A method for a radar device is described below. According to an example implementation, the method comprises transmitting an RF transmission signal that comprises a plurality of frequency-modulated chirps, and receiving an RF radar signal and generating a dataset containing in each case a particular number of digital values based on the received RF radar signal. A dataset may in this case be associated with a chirp or a sequence of successive chirps. The method furthermore comprises filtering the dataset by way of a neural network to which the dataset is fed in order to reduce an interfering signal contained therein. A convolutional neural network is used as the neural network.

公开(公告)号：US11592520B2

公开(公告)日：2023-02-28

申请号：US16703658

申请日：2019-12-04

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Alexander Melzer ,  Christian Schmid ,  Mate Andras Toth

IPC: G01S7/02 ,  G01S7/40 ,  G01S13/931 ,  G01S13/00

Abstract: A method is described below which can be used in a radar system. According to one example implementation, the method comprises providing a digital baseband signal using a radar receiver. The baseband signal comprises a plurality of segments, wherein each segment is assigned to a chirp of an emitted chirp sequence and each segment comprises a specific number of samples. For each signal sequence of n samples of the segments, where n in each case denotes a specific sample position within the respective segment, the method comprises the following: detecting interference-affected samples of the signal sequence; splitting the signal sequence into two or more sub-band signal sequences, wherein each sub-band signal sequence is assigned in each case to a frequency sub-band; replacing interference-affected samples in the two or more sub-band signal sequences in each case with a value which is based on adjacent samples in order to obtain corrected sub-band signal sequences; and determining a corrected signal sequence of n samples of the segments based on the corrected sub-band signal sequences.

公开(公告)号：US11415671B2

公开(公告)日：2022-08-16

申请号：US16689697

申请日：2019-11-20

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Michiel Helsloot ,  Alexander Melzer ,  Vladimir Petrovic ,  Christoph Steiner ,  Hendrikus Van Lierop

IPC: G01C3/08 ,  G01S7/48

Abstract: The present disclosure relates to a light detection and ranging (LIDAR) sensor comprising a detector configured to generate a first detector signal at a first delay time following an emission of a first light pulse and to generate at least one second detector signal at the first delay time following an emission of at least a second light pulse; and a processor configured to generate a combined signal for the first delay time based on a combination of the first detector signal and the at least one second detector signal. Depending on the type of combination, the combined signal can be used for interference detection or mitigation.

公开(公告)号：US11360205B2

公开(公告)日：2022-06-14

申请号：US16385392

申请日：2019-04-16

Applicant: Infineon Technologies AG

Inventor： Paul Meissner ,  Markus Haltmeier ,  Farhan Bin Khalid ,  Andre Roger ,  Johannes Sappl

IPC: G01S13/58 ,  H03M7/30 ,  G01S7/35 ,  G01S13/931 ,  G01S13/34

Abstract: A method for generating a compact representation of radar data, includes determining at least one data peak within a multi-dimensional representation of radar data; and compressing radar data samples of the multi-dimensional representation within a limited neighborhood around the at least one data peak to generate the compact representation.