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公开(公告)号：US11923889B2
公开(公告)日：2024-03-05
申请号：US17935579
申请日：2022-09-27
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
CPC classification number: H04B1/525 , G01S7/02 , G01S7/35 , G01S7/352 , G01S7/354 , G01S7/52 , G01S7/52023 , G01S7/5203 , G01S7/52031 , H04B1/123 , H04B1/44 , G01S13/341
Abstract: Various embodiments include methods and systems having detection apparatus operable to cancel or reduce leakage signal originating from a source signal being generated and transmitted from a transmitter. A leakage cancellation signal can be generated digitally, converted to an analog signal, and then subtracted in the analog domain from a received signal to provide a leakage-reduced signal for use in detection and analysis of objects. A digital cancellation signal may be generated by generating a cancellation signal in the frequency domain and converting it to the time domain. Optionally, an estimate of a residual leakage signal can be generated and applied to reduce residual leakage remaining in the leakage-reduced signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US10594358B2
公开(公告)日：2020-03-17
申请号：US15493751
申请日：2017-04-21
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having detection apparatus operable to cancel or reduce leakage signal originating from a source signal being generated and transmitted from a transmitter. A leakage cancellation signal can be generated digitally, converted to an analog signal, and then subtracted in the analog domain from a received signal to provide a leakage-reduced signal for use in detection and analysis of objects. A digital cancellation signal may be generated by generating a cancellation signal in the frequency domain and converting it to the time domain. Optionally, an estimate of a residual leakage signal can be generated and applied to reduce residual leakage remaining in the leakage-reduced signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US20180329031A1
公开(公告)日：2018-11-15
申请号：US15493737
申请日：2017-04-21
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
CPC classification number: G01S7/40 , G01S7/285 , G01S7/352 , G01S7/4021 , G01S7/4056 , G01S13/34 , G01S13/758 , G01S2007/4065
Abstract: Various embodiments include methods and systems having a frequency-modulated continuous wave radar operable to compensate a return signal for nonlinearity in the associated radar signal that is transmitted. The radar signal can be mixed with a delayed version of the radar signal such that the mixed signal can be used to generate an estimate of the nonlinearity. The estimate can be used to compensate the return signal from an object that reflects the associated transmitted radar signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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Patent Agency Ranking
公开(公告)号：US11476891B2
公开(公告)日：2022-10-18
申请号：US16820626
申请日：2020-03-16
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having detection apparatus operable to cancel or reduce leakage signal originating from a source signal being generated and transmitted from a transmitter. A leakage cancellation signal can be generated digitally, converted to an analog signal, and then subtracted in the analog domain from a received signal to provide a leakage-reduced signal for use in detection and analysis of objects. A digital cancellation signal may be generated by generating a cancellation signal in the frequency domain and converting it to the time domain. Optionally, an estimate of a residual leakage signal can be generated and applied to reduce residual leakage remaining in the leakage-reduced signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US20230008841A1
公开(公告)日：2023-01-12
申请号：US17935579
申请日：2022-09-27
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having detection apparatus operable to cancel or reduce leakage signal originating from a source signal being generated and transmitted from a transmitter. A leakage cancellation signal can be generated digitally, converted to an analog signal, and then subtracted in the analog domain from a received signal to provide a leakage-reduced signal for use in detection and analysis of objects. A digital cancellation signal may be generated by generating a cancellation signal in the frequency domain and converting it to the time domain. Optionally, an estimate of a residual leakage signal can be generated and applied to reduce residual leakage remaining in the leakage-reduced signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US20200287587A1
公开(公告)日：2020-09-10
申请号：US16820626
申请日：2020-03-16
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having a frequency-modulated continuous wave radar operable to compensate a return signal for nonlinearity in the associated radar signal that is transmitted. The radar signal can be mixed with a delayed version of the radar signal such that the mixed signal can be used to generate an estimate of the nonlinearity. The estimate can be used to compensate the return signal from an object that reflects the associated transmitted radar signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US10422856B2
公开(公告)日：2019-09-24
申请号：US15493737
申请日：2017-04-21
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having a frequency-modulated continuous wave radar operable to compensate a return signal for nonlinearity in the associated radar signal that is transmitted. The radar signal can be mixed with a delayed version of the radar signal such that the mixed signal can be used to generate an estimate of the nonlinearity. The estimate can be used to compensate the return signal from an object that reflects the associated transmitted radar signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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公开(公告)号：US20180309474A1
公开(公告)日：2018-10-25
申请号：US15493751
申请日：2017-04-21
Applicant: Futurewei Technologies, Inc.
Inventor： Ricky Lap Kei Cheung , Luzhou Xu , Lixi Wu , Hsing Kuo Lo , Yuan Su
Abstract: Various embodiments include methods and systems having detection apparatus operable to cancel or reduce leakage signal originating from a source signal being generated and transmitted from a transmitter. A leakage cancellation signal can be generated digitally, converted to an analog signal, and then subtracted in the analog domain from a received signal to provide a leakage-reduced signal for use in detection and analysis of objects. A digital cancellation signal may be generated by generating a cancellation signal in the frequency domain and converting it to the time domain. Optionally, an estimate of a residual leakage signal can be generated and applied to reduce residual leakage remaining in the leakage-reduced signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.
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