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公开(公告)号：US20250126011A1
公开(公告)日：2025-04-17
申请号：US19000388
申请日：2024-12-23
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal, the pre-distortion actuator comprising a behavioral model that models a transmit chain of the system including at least one antenna and predict an input-output relationship of the transmit chain of the system between an input to the transmit chain to an output of the transmit chain. The system includes a phased antenna array configured to transmit the output signal. The phased antenna array includes a plurality of antenna elements. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated input signal that cancels out nonlinearities The behavioral model is updated based on feedback from a receiver from a previous output signal transmitted to the receiver.
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公开(公告)号：US12177060B2
公开(公告)日：2024-12-24
申请号：US18205958
申请日：2023-06-05
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal, the pre-distortion actuator comprising a behavioral model that models a transmit chain of the system including at least one amplifier and at least one antenna and predict an input-output relationship of the transmit chain of the system between an input to the transmit chain to an output of the transmit chain. The system includes a phased antenna array configured to transmit the output signal. The phased antenna array includes a plurality of antenna elements, each antenna element electrically coupled to a respective power amplifier. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated input signal that cancels out nonlinearities The behavioral model is updated based on feedback from a receiver from a previous output signal transmitted to the receiver.
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Patent Agency Ranking
公开(公告)号：US20230308338A1
公开(公告)日：2023-09-28
申请号：US18205958
申请日：2023-06-05
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
CPC classification number: H04L27/367 , H03F1/3247 , H04B1/04 , H04L27/368 , H03F1/3294 , H04B2001/0425 , H03F1/3258 , H03F2201/3233 , H04B2001/0433
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal, the pre-distortion actuator comprising a behavioral model that models a transmit chain of the system including at least one amplifier and at least one antenna and predict an input-output relationship of the transmit chain of the system between an input to the transmit chain to an output of the transmit chain. The system includes a phased antenna array configured to transmit the output signal. The phased antenna array includes a plurality of antenna elements, each antenna element electrically coupled to a respective power amplifier. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated input signal that cancels out nonlinearities The behavioral model is updated based on feedback from a receiver from a previous output signal transmitted to the receiver.
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公开(公告)号：US11671123B1
公开(公告)日：2023-06-06
申请号：US17185427
申请日：2021-02-25
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
CPC classification number: H04B1/04 , H03F1/3247 , H04L27/368 , H03F2201/3233 , H04B2001/0425 , H04B2001/0433
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.
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公开(公告)号：US11665043B2
公开(公告)日：2023-05-30
申请号：US17671077
申请日：2022-02-14
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
CPC classification number: H04L27/367 , H03F1/3247 , H04B1/04 , H03F1/3258 , H03F1/3294 , H04B2001/0425
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.
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公开(公告)号：US20220255786A1
公开(公告)日：2022-08-11
申请号：US17671077
申请日：2022-02-14
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.
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公开(公告)号：US11283666B1
公开(公告)日：2022-03-22
申请号：US17185501
申请日：2021-02-25
Applicant: Space Exploration Technologies Corp.
Inventor： Martin S. McCormick , Feipeng Wang
Abstract: A wireless communications system includes a stochastic pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.
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