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1.发明授权公开(公告)号：US11588516B2
公开(公告)日：2023-02-21
申请号：US17398992
申请日：2021-08-10
IPC分类号： H04B7/02 , H04B1/7107 , H04B1/10 , H04B1/719
摘要： Under one aspect, a method is provided for processing a received signal, the received signal including a desired signal and an interference signal that spectrally overlaps the desired signal. The method can include obtaining an amplitude of the received signal. The method also can include obtaining an average amplitude of the received signal based on at least one prior amplitude of the received signal. The method also can include subtracting the amplitude from the average amplitude to obtain an amplitude residual. The method also can include, based upon an absolute value of the amplitude residual being less than or equal to a first threshold, inputting the received signal into an interference suppression algorithm so as to generate a first output including the desired signal with reduced contribution from the interference signal.
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公开(公告)号：US11513479B1
公开(公告)日：2022-11-29
申请号：US17409683
申请日：2021-08-23
发明人： Daniel Joseph Hernandez , Mitchel John Craun , Evan Nathan Sperber , Richard Yining Chiang , Nicholas Akira Oune
摘要： A method for automating system identification includes performing a system identification experiment, and performing a system identifying processing by fitting a model to data from the system identification experiment. The method also includes performing model reduction to generate a model numerically suitable for controller synthesis by removing inconsequential states that cause controller optimization methods to fail. The method further includes performing control synthesis using the generated model or reduced models, including disturbance spectrum estimates, to generate a candidate controller design to be used during system operation. The method also includes checking for controller robustness using the identified model to ensure stability of the system while maximizing closed-loop bandwidth and performance.
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公开(公告)号：US11496240B1
公开(公告)日：2022-11-08
申请号：US17327493
申请日：2021-05-21
摘要： System and methods are disclosed that comprise receiving at least one signal via a receiver. The at least one signal is extracted for data via a processor coupled to the receiver, wherein the data includes at least one message and a set of parameters related to the message. A signal output is generated using the at least one message and the set of parameters such that the signal output includes a first portion and a second portion. At least one error is identified in the signal output and corrected using the first portion and the second portion. An output is generated that is used to perform at least one task related to the at least one signal.
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公开(公告)号：US11493750B2
公开(公告)日：2022-11-08
申请号：US16672318
申请日：2019-11-01
摘要： An acquisition and tracking sensor includes a quad detector with a narrow field of view (NFOV) and a micro-electromechanical system (MEMS) mirror with a wide field of view (WFOV). The quad detector is placed behind the MEMS mirror to produce a WFOV to allow the quad detector to scan a larger area for the incoming laser beam.
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公开(公告)号：US20220284261A1
公开(公告)日：2022-09-08
申请号：US17249604
申请日：2021-03-05
摘要： Machine learning models are provided that consider, during the process of producing output, various aspects of the training data and/or training process from which the models are created. A machine learning model may generate output (e.g., classification determinations or regression output) that is augmented with information regarding the distribution(s) of the corpus of training data upon which the model was trained, the features extracted from the training data, the resulting determinations made by the model, and/or other information. The augmentation may occur internally while generating the model output, or the output itself may be augmented to include distribution-based data in addition to a model output.
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6.发明授权公开(公告)号：US11378746B2
公开(公告)日：2022-07-05
申请号：US17037486
申请日：2020-09-29
摘要： A method for performing an operation on an input signal includes receiving, by a multi-mode waveguide, the input signal imposed on laser light. The received input signal imposed on the laser light is propagated through the waveguide a plurality of times in a plurality of modes, the modes interfering each time they propagate through the waveguide to generate an interference pattern of the plurality of modes. Portions of the interference pattern of the plurality of modes are nonlinearly activated each time those modes propagate through the multi-mode waveguide. Portions of the activated interference pattern of the plurality of modes are output to an optical detector array in parallel with one another each time those modes propagate through the multi-mode waveguide.
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公开(公告)号：US11349581B1
公开(公告)日：2022-05-31
申请号：US16736099
申请日：2020-01-07
IPC分类号： H01Q21/06 , H01Q21/24 , H04B1/10 , H04B7/10 , H04B17/345
摘要： Apparatus and methods for monitoring interference in radio communication systems are provided. In certain embodiments, an interference monitor system for a ground terminal detects for interference based on a sum of the power levels of orthogonal polarizations of detected interference, thereby allowing the total and average peak interference power levels to be obtained independent of interference polarization. Further, the interference can be divided into frequency bins over the received signal bandwidth(s), thereby facilitating measurement of interference spectral characteristics. Multiple interference monitors can be included to detect interference over the full angular range over which potential interference has access as well as to determine an angular direction of the interference.
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公开(公告)号：US11287522B2
公开(公告)日：2022-03-29
申请号：US16161232
申请日：2018-10-16
发明人： George Vazquez , Christopher Bass
摘要： A single space platform with an optical telescope, a spectrometer, and/or a database of stored spectral information may be used to determine the range and/or velocity of natural or artificial resident space objects (RSOs). Relativistic Doppler shift measured from reflected solar photons and/or photons from other emitting source(s) provides information that the space platform can use to determine the relative velocity and the range rate. This information can then be used in combination with the right ascension and declination angles to perform differential correction and obtain an updated orbit.
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公开(公告)号：US20220033111A1
公开(公告)日：2022-02-03
申请号：US16943203
申请日：2020-07-30
发明人： Richard P. WELLE
摘要： An apparatus includes a satellite in the form of a plate having a thickness being smaller than a width of the satellite. The apparatus also includes a plurality of contact points distributed on a face of the satellite, allowing for one or more additional satellites to be stacked upon the satellite.
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公开(公告)号：US20220017239A1
公开(公告)日：2022-01-20
申请号：US16932418
申请日：2020-07-17
发明人： Derek Chen
摘要： Disclosed herein are systems and methods for estimating an orbit of a satellite using only images captured by an onboard camera of the satellite. One of the disclosed methods includes: capturing a plurality of images using an onboard camera of the satellite; determining the trajectory, loop closure metrics, and the relative geographic position of the satellite using the plurality of images captured by the onboard camera; and estimating the orbit of the satellite based at least on the determined trajectory, loop closure metrics, and the relative geographic position of the satellite.
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