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公开(公告)号：US12119853B2
公开(公告)日：2024-10-15
申请号：US17824899
申请日：2022-05-26
Applicant: Analog Devices, Inc.
Inventor： Xiao Yu Wang , Milutin Pajovic , Omer Tanovic , Tao Yu , Nevena Rakuljic , Gregory Patrick Davis
CPC classification number: H04B1/10 , H04L25/03878
Abstract: Non-idealities of input circuitry of a receiver signal chain can significantly degrade the overall performance of the receiver signal chain. A digital nonlinearity correction (NLC) can be implemented in a receiver signal chain having an ADC. Digital NLC can be designed as a drop in signal preconditioner for existing RF ADC wideband receiver signal chains. A unique equalizer can compensate for a variety of mixer spurs. Accordingly, digital NLC can correct nonlinearities due to mixers and any amplifiers preceding or following the ADC, potentially improving receive chains performance by 15-25 dB. Such a digital NLC solution can be particularly beneficial in defense and instrumentation applications which demand the greatest performance.
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公开(公告)号：US20220385318A1
公开(公告)日：2022-12-01
申请号：US17824899
申请日：2022-05-26
Applicant: Analog Devices, Inc.
Inventor： Xiao Yu WANG , Milutin Pajovic , Omer Tanovic , Tao Yu , Nevena Rakuljic , Gregory Patrick Davis
Abstract: Non-idealities of input circuitry of a receiver signal chain can significantly degrade the overall performance of the receiver signal chain. A digital nonlinearity correction (NLC) can be implemented in a receiver signal chain having an ADC. Digital NLC can be designed as a drop in signal preconditioner for existing RF ADC wideband receiver signal chains. A unique equalizer can compensate for a variety of mixer spurs. Accordingly, digital NLC can correct nonlinearities due to mixers and any amplifiers preceding or following the ADC, potentially improving receive chains performance by 15-25 dB. Such a digital NLC solution can be particularly beneficial in defense and instrumentation applications which demand the greatest performance.
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