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公开(公告)号：US10761187B2
公开(公告)日：2020-09-01
申请号：US15950438
申请日：2018-04-11
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Andreas Dorfner , Youn Joo Kim , Raghavendran Vagarappan Ulaganathan , Thomas Finke
Abstract: A device includes: a millimeter-wave radar sensor circuit configured to generate N virtual channels of sensed data, where N is an integer number greater than one; and a processor configured to: generate a 2D radar image of a surface in a field of view of the millimeter-wave radar sensor circuit based on sensed data from the N virtual channels of sensed data, where the 2D radar image includes azimuth and range information, generate a multi-dimensional data structure based on the 2D radar image using a transform function, compare the multi-dimensional data structure with a reference multi-dimensional data structure, and determine whether liquid is present in the field of view of the millimeter-wave radar sensor circuit based on comparing the multi-dimensional data structure with the reference multi-dimensional data structure.
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Patent Agency Ranking
公开(公告)号：US10718860B2
公开(公告)日：2020-07-21
申请号：US15868727
申请日：2018-01-11
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Thomas Finke , Johann Peter Forstner
IPC: G01S13/28 , G01S13/34 , G01S13/18 , G01S13/26 , G01S13/58 , G01S7/282 , G01S7/4865 , H03L7/06 , H03L7/18 , H03L7/23 , H03L7/08 , G01S7/35 , G01S7/288 , G01S7/00
Abstract: A method for determining the range of an object includes transmitting successive radar chirps, adding a frequency offset to the successive radar chirps, the frequency offset being a fraction of a range frequency bin, receiving return signals, constructing frequency transforms from each of the return signals, adding each of the frequency transforms together to create a composite frequency transform, and interpolating the range of the object from a frequency peak detected in the composite frequency transform.
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公开(公告)号：US20190317190A1
公开(公告)日：2019-10-17
申请号：US15950438
申请日：2018-04-11
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Andreas Dorfner , Youn Joo Kim , Raghavendran Vagarappan Ulaganathan , Thomas Finke
Abstract: A device includes: a millimeter-wave radar sensor circuit configured to generate N virtual channels of sensed data, where N is an integer number greater than one; and a processor configured to: generate a 2D radar image of a surface in a field of view of the millimeter-wave radar sensor circuit based on sensed data from the N virtual channels of sensed data, where the 2D radar image includes azimuth and range information, generate a multi-dimensional data structure based on the 2D radar image using a transform function, compare the multi-dimensional data structure with a reference multi-dimensional data structure, and determine whether liquid is present in the field of view of the millimeter-wave radar sensor circuit based on comparing the multi-dimensional data structure with the reference multi-dimensional data structure.
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4.发明申请公开(公告)号：US20190227156A1
公开(公告)日：2019-07-25
申请号：US15876769
申请日：2018-01-22
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Thomas Finke , Reinhard-Wolfgang Jungmaier , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
Abstract: An embodiment method includes identifying a set of targets within a field of view of a millimeter-wave radar sensor based on radar data received by the millimeter-wave radar sensor; capturing radar data corresponding to the set of targets across a macro-Doppler frame; performing macro-Doppler processing on the macro-Doppler frame and determining whether a macro-Doppler signal is present in the macro-Doppler frame based on the macro-Doppler processing; capturing radar data corresponding to the set of targets across a micro-Doppler frame, wherein the micro-Doppler frame has a duration equal to a first plurality of macro-Doppler frames; performing micro-Doppler processing on the micro-Doppler frame and determining whether a micro-Doppler signal is present in the micro-Doppler frame based on the micro-Doppler processing; and activating at least one range bin of a plurality of range bins in response to a determination that at least one of the macro-Doppler signal or the micro-Doppler signal is present.
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公开(公告)号：US10795012B2
公开(公告)日：2020-10-06
申请号：US15876769
申请日：2018-01-22
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Thomas Finke , Reinhard-Wolfgang Jungmaier , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
IPC: G01S13/50 , G01S7/41 , G01S13/56 , G01S13/42 , G01S7/10 , G06K9/00 , G01S7/288 , G01S13/536 , G01S13/522 , G01S7/292
Abstract: An embodiment method includes identifying a set of targets within a field of view of a millimeter-wave radar sensor based on radar data received by the millimeter-wave radar sensor; capturing radar data corresponding to the set of targets across a macro-Doppler frame; performing macro-Doppler processing on the macro-Doppler frame and determining whether a macro-Doppler signal is present in the macro-Doppler frame based on the macro-Doppler processing; capturing radar data corresponding to the set of targets across a micro-Doppler frame, wherein the micro-Doppler frame has a duration equal to a first plurality of macro-Doppler frames; performing micro-Doppler processing on the micro-Doppler frame and determining whether a micro-Doppler signal is present in the micro-Doppler frame based on the micro-Doppler processing; and activating at least one range bin of a plurality of range bins in response to a determination that at least one of the macro-Doppler signal or the micro-Doppler signal is present.
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公开(公告)号：US20190212428A1
公开(公告)日：2019-07-11
申请号：US15868727
申请日：2018-01-11
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Thomas Finke , Johann Peter Forstner
Abstract: A method for determining the range of an object includes transmitting successive radar chirps, adding a frequency offset to the successive radar chirps, the frequency offset being a fraction of a range frequency bin, receiving return signals, constructing frequency transforms from each of the return signals, adding each of the frequency transforms together to create a composite frequency transform, and interpolating the range of the object from a frequency peak detected in the composite frequency transform.
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