公开(公告)号：US20240134002A1

公开(公告)日：2024-04-25

申请号：US18048704

申请日：2022-10-20

Applicant: Infineon Technologies AG

Inventor： Esmaeil KAVOUSI GHAFI ,  Alexander MELZER ,  Matthias WAGNER ,  Oliver LANG

IPC: G01S7/40 ,  G01S7/35 ,  G01S13/58 ,  G01S13/89

CPC classification number: G01S7/40 ,  G01S7/356 ,  G01S13/584 ,  G01S13/89

Abstract: A radar device may generate an integrated range-velocity map by combining data from a plurality of range-velocity maps. Each range-velocity map may be associated with a respective radar channel from a plurality of radar channels. The radar device may identify a first peak in the integrated range-velocity map. The first peak may indicate one or more radar targets in the integrated range-velocity map and being identified by a first bin having a first range-velocity bin index. The radar device may determine a first data set by extracting, from each range-velocity map, data that is included in a respective bin associated with the first range-velocity bin index. The radar device may process the first data set to determine a first set of phase imbalances associated with the plurality of radar channels.

公开(公告)号：US20240137135A1

公开(公告)日：2024-04-25

申请号：US18483997

申请日：2023-10-10

Applicant: Infineon Technologies AG

Inventor： Oliver LANG ,  Matthias WAGNER ,  Esmaeil KAVOUSI GHAFI ,  Andreas SCHWARZ

IPC: H04B17/13 ,  H04B17/14 ,  H04B17/20

CPC classification number: H04B17/13 ,  H04B17/14 ,  H04B17/201

Abstract: A method for determining a nonlinearity characteristic of a receiver path includes generating a set of N×M digital samples by repeating N times selecting an scaling factor from a set of N scaling factors, generating a version of a test signal, the version of the test signal corresponding to a test signal scaled by the respective scaling factor, processing the respective version of the test signal in at least a part of the receiver path to generate a respective processed signal, and storing M digital samples corresponding to the respective processed signal. Fourier-transformed data are generated using at least a portion of the set of N×M digital samples and a nonlinearity characteristic of the receiver path is determined based on the Fourier-transformed data.

公开(公告)号：US20190242972A1

公开(公告)日：2019-08-08

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 ,  G01S13/12 ,  G01S13/534

CPC classification number: G01S7/2923 ,  G01S7/023 ,  G01S7/35 ,  G01S7/354 ,  G01S7/36 ,  G01S7/40 ,  G01S13/12 ,  G01S13/34 ,  G01S13/343 ,  G01S13/534 ,  G01S13/93 ,  G01S13/931 ,  G01S2007/356

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：US20240230836A9

公开(公告)日：2024-07-11

申请号：US18048704

申请日：2022-10-21

Applicant: Infineon Technologies AG

Inventor： Esmaeil KAVOUSI GHAFI ,  Alexander MELZER ,  Matthias WAGNER ,  Oliver LANG

IPC: G01S7/40 ,  G01S7/35 ,  G01S13/58 ,  G01S13/89

CPC classification number: G01S7/40 ,  G01S7/356 ,  G01S13/584 ,  G01S13/89

Abstract: A radar device may generate an integrated range-velocity map by combining data from a plurality of range-velocity maps. Each range-velocity map may be associated with a respective radar channel from a plurality of radar channels. The radar device may identify a first peak in the integrated range-velocity map. The first peak may indicate one or more radar targets in the integrated range-velocity map and being identified by a first bin having a first range-velocity bin index. The radar device may determine a first data set by extracting, from each range-velocity map, data that is included in a respective bin associated with the first range-velocity bin index. The radar device may process the first data set to determine a first set of phase imbalances associated with the plurality of radar channels.

公开(公告)号：US20230014179A1

公开(公告)日：2023-01-19

申请号：US17852794

申请日：2022-06-29

Applicant: Infineon Technologies AG

Inventor： Matthias WAGNER ,  Alexander MELZER

IPC: G01S7/40 ,  H04B17/19 ,  G01S7/35 ,  G01S13/58

Abstract: The present disclosure relates to a radar device, including a transmitter circuit configured to generate an RF oscillator signal and to transmit an RF fault detection signal based on the RF oscillator signal, a receiver circuit configured to receive an RF reception signal based on the RF fault detection signal and to mix the RF reception signal with the RF oscillator signal in order to obtain a down-converted reception signal, and a fault detection circuit configured to detect a hardware fault of the radar device based on a phase of the down-converted reception signal.