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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
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.
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公开(公告)号：US11644530B2
公开(公告)日：2023-05-09
申请号：US17061840
申请日：2020-10-02
Applicant: Infineon Technologies AG
Inventor： Alexander Melzer , Francesco Lombardo
CPC classification number: G01S7/023 , G01S7/40 , G01S7/4056 , G01S7/4069
Abstract: A radio frequency (RF) circuit includes an input terminal configured to receive a reception signal from an antenna; an output terminal configured to output a digital output signal; a receive path including a mixer and an analog-to-digital converter (ADC), wherein the receive path is coupled to and between the input and output terminals, wherein the receive path includes an analog portion and a digital portion, and wherein the ADC generates a digital signal based on an analog signal received from the analog portion; a test signal generator configured to generate an analog test signal injected into the analog portion of the receive path; and a digital processor configured to receive a digital test signal from the digital portion, the digital test signal being derived from the analog test signal, analyze a frequency spectrum of the digital test signal, and determine a quality of the digital test signal.
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公开(公告)号：US11635489B2
公开(公告)日：2023-04-25
申请号：US16909113
申请日：2020-06-23
Applicant: Infineon Technologies AG
Inventor： Vincenzo Fiore , Werner Arriola , Rene Kobler , Oliver Lang , Alexander Melzer
IPC: G01S7/40
Abstract: A method for the use in a radar system is described herein. In accordance with one embodiment, the method includes providing a local oscillator signal to an RF output channel of a radar system. The RF output channel is configured to generate, in an enabled state, an RF output signal based on the local oscillator signal. The method further includes determining a first measurement signal based on the local oscillator signal and a first representation of the RF output signal, while the RF output channel is disabled, and thus the first measurement signal represents crosstalk. Further, the method includes determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled. A phase value associated with the RF output channel is determined based on the first measurement signal and the second measurement signal.
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34.发明授权公开(公告)号：US11567169B2
公开(公告)日：2023-01-31
申请号：US16943365
申请日：2020-07-30
Applicant: Infineon Technologies AG
Inventor： Francesco Lombardo , George Efthivoulidis , Rainer Findenig , Alexander Melzer
Abstract: A radar system is provided that includes a radar monolithic microwave integrated circuit (MMIC). The radar MMIC includes a plurality of radar signal channels; and at least one sensor configured to measure a physical parameter related to a temperature of the radar MMIC, and to generate sensor data corresponding to measured values of the physical parameter; and a controller configured to receive the sensor data from the at least one sensor, and to determine a channel operation of the plurality of radar signal channels, including selectively disabling at least a first radar signal channel of the plurality of radar signal channels and selectively enabling at least a second radar signal channel of the plurality of radar signal channels based on the measured values.
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Patent Agency Ranking
公开(公告)号：US11550028B2
公开(公告)日：2023-01-10
申请号：US16511769
申请日：2019-07-15
Applicant: Infineon Technologies AG
Inventor： Alexander Melzer , Bernhard Greslehner-Nimmervoll , Clemens Pfeffer
Abstract: The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information. The method further comprises receiving an RF oscillator signal representing the chirp sequence, and supplying the RF oscillator signal to the accordingly configured transmission channels.
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公开(公告)号：US11480656B2
公开(公告)日：2022-10-25
申请号：US16880306
申请日：2020-05-21
Applicant: Infineon Technologies AG
Inventor： Pranava Tripathi , Alexander Girlinger , Rene Kobler , Alexander Melzer , Andreas Voggeneder
Abstract: A method of configuring a radar monolithic microwave integrated circuit (MMIC) and executing configured commands includes receiving and storing a plurality of configuration commands corresponding to unique time-dependent functions, each configuration command corresponding to a different one of the unique time-dependent functions; generating a unique command handle for each configuration command; transmitting the unique command handle for each configuration command to a controller; receiving and storing a bundled configuration command comprising a plurality of unique command handles corresponding to a set of configuration commands; generating a unique bundled command handle for the bundled configuration command; transmitting the unique bundled command handle to the controller; and receiving an execute command that includes the unique bundled command handle, where the execute command triggers execution of an execution flow of the unique time-dependent functions corresponding to the set of configuration commands associated with the unique bundled command handle.
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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.
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公开(公告)号：US10670698B2
公开(公告)日：2020-06-02
申请号：US15358363
申请日：2016-11-22
Applicant: Infineon Technologies AG
Inventor： Alexander Melzer , Mario Huemer , Alexander Onic , Florian Starzer , Rainer Stuhlberger
IPC: G01S7/40 , G01S7/03 , G01S13/34 , G01S13/931
Abstract: A method for estimating phase noise of an RF oscillator signal in a frequency-modulated continuous-wave (FMCW) radar system and related radar devices are provided. The method includes applying the RF oscillator signal to an artificial radar target composed of circuitry, which applies a delay and a gain to the RF oscillator signal, to generate an RF radar signal. Furthermore, the method includes down-converting the RF radar signal received from the artificial radar target from an RF frequency band to a base band, digitizing the down-converted RF radar signal to generate a digital radar signal, and calculating a decorrelated phase noise signal from the digital radar signal. A power spectral density of the decorrelated phase noise is then calculated from the decorrelated phase noise signal, and the power spectral density of the decorrelated phase noise is converted into a power spectral density of the phase noise of an RF oscillator signal.
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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
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.
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