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公开(公告)号：US11630467B2
公开(公告)日：2023-04-18
申请号：US17133229
申请日：2020-12-23
发明人： John Robert Wittmaak, Jr. , Russell C. Peters , Aaron Hitchcock , William Ben Johns , Levi Charles Hefner , Andrew Vincent Louis
IPC分类号： G05D1/00 , B64C39/02 , G01S13/00 , B64C29/00 , G06V20/13 , G05D1/06 , G01S13/91 , B64U101/30
摘要： An aircraft includes an airframe with a thrust array attached thereto. The thrust array includes a plurality of propulsion assemblies that are independently controlled by a flight control system. A landing gear assembly is coupled to the airframe and includes a plurality of landing feet. An altitude sensor array includes a plurality of altitude sensors each of which is disposed within one of the landing feet such that when the aircraft is in the VTOL orientation, the altitude sensor array is configured to obtain multifocal altitude data relative to a landing surface. The flight control system is configured to generate a three-dimensional terrain map of the surface based upon the multifocal altitude data.
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公开(公告)号：US11630203B2
公开(公告)日：2023-04-18
申请号：US16863008
申请日：2020-04-30
申请人： Raytheon Company
发明人： Michael D. Dubois , Eric J. Knapp
摘要： A ground-based radar system for weather sensing and aircraft tracking includes a ground-based radar that is configured to scan a volume of space associated with a particular aircraft for detecting a weather event in the volume of space, and an electronic control system that is configured to control the ground-based radar. The control system is adapted to track the particular aircraft via tracking data associated with the particular aircraft, and is adapted to detect the weather event via weather data associated with signals from the ground-based radar. The control system is configured to control the ground-based radar to adjust the scan of the volume of space in response to at least the tracking data associated with the particular aircraft being tracked. A geographically diverse radar network that includes multiple ground-based radar systems that communicate with each other also is provided.
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公开(公告)号：US11598869B2
公开(公告)日：2023-03-07
申请号：US16258234
申请日：2019-01-25
发明人： Ceri Reid
IPC分类号： G01S7/00 , G01S15/10 , G01S13/00 , G01S13/10 , G01S13/89 , G01S15/00 , G01S7/28 , G01S7/533 , G01S7/52 , G01S15/89 , G01S7/523 , G01S7/282 , G01S7/292 , G01S7/526 , G01S13/34
摘要： A method for use in acoustic imaging, comprising: transmitting, from a transmitter, a first sound wave pulse at a first frequency determined by a maximum sampling rate of a receiver; transmitting at least one second sound wave pulse at a frequency substantially equal to the first frequency, the first and at least one second sound wave pulses being transmitted substantially within a fraction of a sample interval of the receiver; receiving and sampling, at the receiver, a reflection of at least two of the first and at least one second pulses to generate a set of receiver samples; and expanding the set of receiver samples, based on the first frequency and a total number of the first and at least one second pulses transmitted, to generate an expanded sample set with a larger number of samples than the set of receiver samples.
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公开(公告)号：US11598841B1
公开(公告)日：2023-03-07
申请号：US16854251
申请日：2020-04-21
申请人： Temple University-Of The Commonwealth System of Higher Education , Government of the United States, as represented by the Secretary of the Air Force
发明人： Ammar Ahmed , Yimin Daniel Zhang , Braham Himed
摘要： A system for distributed dual-function radar-communication comprises a plurality of dual-function radar transmitters positioned within a region of interest, each configured to transmit at least one radar waveform, with each transmitter for having a minimum transmit power, a maximum transmit power, and a working transmit power, a plurality of radar receivers positioned within the region of interest, each configured to receive the radar waveforms, at least one controller communicatively connected to at least one connected transmitter of the plurality of dual-function radar transmitters, configured to calculate a vector of transmit power values for the plurality of dual-function radar transmitters. A method of transmitting a radar waveform is also disclosed.
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5.发明授权公开(公告)号：US11568496B1
公开(公告)日：2023-01-31
申请号：US17104144
申请日：2020-11-25
发明人： Mark V. Slusar , Joseph Kleinhenz , Eric D. Huls
IPC分类号： G06Q40/08 , G07C5/00 , G01S19/13 , G01S13/00 , G08G1/16 , G08G1/00 , H04W4/02 , G08G1/017 , G08G1/01 , H04W4/40 , G01S5/02
摘要： At least a method for determining risk behavior of a driver is described. While a vehicle is being driven, data is obtained related to the position and movement of a wireless communications device. The data may indicate the type of behavior exhibited by the driver while the vehicle is being driven.
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公开(公告)号：US11555913B2
公开(公告)日：2023-01-17
申请号：US16650686
申请日：2017-11-13
发明人： Tomohiro Akiyama
IPC分类号： G01S13/87 , G01B11/02 , G01S13/931 , G01S13/00
摘要： In this object recognition device, an association between a first object detection result and a second object detection result is taken in a region excluding an occlusion area. When the first object detection result and the second object detection result are determined to be detection results for an identical object, a recognition result of the surrounding object is calculated from the first object detection result and the second object detection result. Thus, occurrences of erroneous recognition of an object can be decreased as compared to a conventional object recognition device of a vehicle.
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公开(公告)号：US20230003836A1
公开(公告)日：2023-01-05
申请号：US17902070
申请日：2022-09-02
发明人： Michel Allegue Martinez , Negar Ghourchian , David Grant , Francois Morel , Pauline Tranchant , Amir Minayi Jalil
摘要： Systems and methods for detecting and monitoring human breathing, respiration, and heart rate using statistics about the wireless channel between two or more connected devices. A user is monitored for identifying patterns in the user's behavior that may allow the system to alert a caregiver to deviations in the user behavior that may be indicative of a potential issue, such as depression. A presence may further detected in a sensing area through the detection of spectral components in the breathing frequency range of comprises user includes transforming phase difference between spatial streams and amplitude of the samples representing frequency response of the channel for any frequency value into frequency domain to perform frequency analysis. Statistical analysis may be performed on the frequency space provided by the transformation. Micro motions may also be detected by detecting presence in a sensing area through the detection of spectral components in the micro motion frequency range.
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公开(公告)号：US11536848B2
公开(公告)日：2022-12-27
申请号：US16762407
申请日：2019-01-28
发明人： Jan-Mark Kunberger
IPC分类号： G01S17/931 , G01S13/931 , G01S13/95 , G08G1/0967 , G01S13/00
摘要： An absorber device for electromagnetic sensor systems has at least one aperture. Each aperture is able to be opened and closed by an aperture closure. The absorber device is designed in such a way that when the aperture is open, electromagnetic waves incoming through the aperture do not then leave the absorber device, and when the aperture is closed, electromagnetic waves impinging on the aperture are reflected.
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公开(公告)号：US11500058B2
公开(公告)日：2022-11-15
申请号：US17214841
申请日：2021-03-27
申请人： Yuqian Hu , Beibei Wang , Muhammed Zahid Ozturk , Feng Zhang , K. J. Ray Liu , Oscar Chi-Lim Au , Xiaolu Zeng , Chenshu Wu , Fengyu Wang
发明人： Yuqian Hu , Beibei Wang , Muhammed Zahid Ozturk , Feng Zhang , K. J. Ray Liu , Oscar Chi-Lim Au , Xiaolu Zeng , Chenshu Wu , Fengyu Wang
摘要： Methods, apparatus and systems for wireless proximity sensing are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a movement of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises a plurality of CI components, each of which is associated with an index; computing an inter-component statistics based on the plurality of CI components; computing, based on the inter-component statistics, a proximity information of the object with respect to a reference location in the venue; and performing a task based on the proximity information of the object.
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公开(公告)号：US11493619B2
公开(公告)日：2022-11-08
申请号：US17511433
申请日：2021-10-26
申请人： ZaiNar, Inc.
发明人： Mainak Chowdhury , Philip Adam Kratz , Jonathan Shiao-En Lu , Srdjan Miocinovic , Siamak Yousefi
摘要： A method includes: receiving a ranging signal from the transmitter comprising a set of multiplexed sub-signals, each multiplexed sub-signal characterized by a frequency in a set of frequencies; calculating a time-based time-of-arrival estimate based on the series of time-domain samples of the ranging signal; calculating a time-based uncertainty of the time-based time-of-arrival; for each sub-signal pair in a subset of multiplexed sub-signals of the set of multiplexed sub-signals, extracting a phase difference of the sub-signal pair; calculating a phase-based time-of-arrival estimate based on the phase difference of each sub-signal pair in the subset of multiplexed sub-signals; calculating a phase-based uncertainty of the phase-based time-of-arrival estimate; and calculating a hybrid time-of-arrival estimate as a weighted combination of the time-based time-of-arrival estimate, the phase-based time-of-arrival estimate, based on the time-based uncertainty and the phase-based uncertainty.
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