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公开(公告)号：US12105184B2
公开(公告)日：2024-10-01
申请号：US17988705
申请日：2022-11-16
申请人： TOPGOLF SWEDEN AB
发明人： Jonny Eriksson
CPC分类号： G01S13/62 , G01S13/583 , G01S7/415 , G01S13/584 , G01S13/723
摘要： A method for estimating a spin of a projectile, the method comprising obtaining a first data series representing a radial velocity of a projectile over time in accordance with a radar signal reflected from the projectile, subtracting a center velocity of the first data series from the first data series to form a second data series representing a variation of the radial velocity of the projectile around the center velocity over time, dividing the second data series into respective time intervals, estimating, for each of the time intervals of the second data series, a frequency of the variation of the radial velocity of the projectile around the center velocity, and determining a spin of the projectile based on the estimated frequencies of the variation of the radial velocity of the projectile.
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公开(公告)号：US20240319356A1
公开(公告)日：2024-09-26
申请号：US18611305
申请日：2024-03-20
申请人： NextNav, LLC
发明人： Cristina SEIBERT
IPC分类号： G01S13/58 , G01S13/42 , G01S13/933
CPC分类号： G01S13/583 , G01S13/42 , G01S13/933
摘要： The techniques described herein relate to a method of detecting an object in an environment using a system including a server and a set of transceivers. A first set of signals is transmitted and received by the set of transceivers, and processed to determine a background for an environment. A second set of signals is transmitted from the set of transceivers, all or a portion of the second set of transmitted signals are reflected off of an object of interest (OOI), and the reflected signals are received by the set of transceivers and processed to determine a first estimated location of the OOI by detecting a change between the first set of received signals and the first set of reflected signals. If the first estimated location is determined to be a reported location of the OOI then it is reported as a reported location to a system.
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公开(公告)号：US20240316402A1
公开(公告)日：2024-09-26
申请号：US18615232
申请日：2024-03-25
申请人： TRACKMAN A/S
CPC分类号： A63B24/0021 , A63B69/3658 , G01S13/58 , G01S13/583 , G01S13/88 , A63B2024/0034 , A63B2220/35 , G01S7/356
摘要： A system determining a spin axis of a ball includes a radar transmitting a signal into a target area. The radar includes a minimum of three receivers arranged so that two pairs of receivers are not co-linear. The system also includes a Processing Unit (“PU”) receiving data from the radar and determining a radar range of frequencies received at a point in time corresponding to differing velocities relative to the radar of different portions of the ball as the ball is spinning. PU divides the radar frequency range into a plurality of frequency components and calculating, for each of the frequency components, an angular position associated therewith. PU identifies as a projection of the spin axis in a plane perpendicular to a line of sight from the radar to the ball, a line perpendicular to a line represented by the determined angular positions.
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公开(公告)号：US20240264298A1
公开(公告)日：2024-08-08
申请号：US18638182
申请日：2024-04-17
发明人： Inoh HWANG
IPC分类号： G01S13/58 , G01S7/481 , G01S13/34 , G01S13/931 , G01S13/933 , G01S13/937 , G01S17/58
CPC分类号： G01S13/583 , G01S7/4815 , G01S7/4817 , G01S13/34 , G01S13/931 , G01S13/933 , G01S13/937 , G01S17/58
摘要： A radar apparatus includes a transmitter configured to transmit electromagnetic waves; a receiver configured to receive electromagnetic waves that are reflected; and a processor configured to extract a relative velocity, with respect to the radar apparatus, of at least one front object based on the electromagnetic waves received by the receiver, wherein the processor is further configured to locally adjust respective resolutions of scanning front regions based on the relative velocity of the at least one front object.
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公开(公告)号：US12042698B2
公开(公告)日：2024-07-23
申请号：US16293366
申请日：2019-03-05
申请人： TRACKMAN A/S
CPC分类号： A63B24/0021 , A63B69/3658 , G01S13/58 , G01S13/583 , G01S13/88 , A63B2024/0034 , A63B2220/35 , G01S7/356
摘要： A system includes a radar configured to capture radar data of a non-spherical object. The system also includes a processor configured to detect, in the radar data, oscillations corresponding to rotation of the object about an axis that is not an axis of symmetry of the object and determine a frequency of the rotation of the object about the axis based on the detected oscillations.
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公开(公告)号：US11994577B2
公开(公告)日：2024-05-28
申请号：US17473753
申请日：2021-09-13
申请人： DENSO CORPORATION
发明人： Yusuke Akamine , Takuya Takayama
CPC分类号： G01S13/583 , G01S7/352 , G01S13/60
摘要： In an object tracking device, a candidate generator is configured to, given P=Kmax−Kmin+1 that defines a range of foldings of velocity by phase rotation from Kminth to Kmaxth foldings, calculate P velocity estimates for each of initial observation points. The candidate generator sets the number of foldings Kmin and the number of foldings Kmax such that Kmin |Kmax| when an absolute value of an observation angle representing a direction of the observation point is equal to or less than a first threshold value, and Kmax>0 and |Kmin|
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7.发明公开公开(公告)号：US20240151800A1
公开(公告)日：2024-05-09
申请号：US18200226
申请日：2023-05-22
发明人： James A. Stevens , Matthew D. Bousselot , Douglas P. Burch , Tj T. Kwon , William B. Sorsby , Eric J. Loren , Joseph T. Graf
CPC分类号： G01S5/0027 , G01S13/583 , G01S13/62 , H04W56/0015 , H04W56/0035 , H04W56/005
摘要： A system may include a receiver node. The receiver node may include a communications interface and a controller. The receiver node is time synchronized with a transmitter node to apply Doppler corrections to the receiver node's own motions relative to a common reference frame. The receiver node may be configured to: The receiver node may be configured to: based at least on the receiver node being time synchronized with the transmitter node to apply Doppler corrections and the common reference frame, use Doppler null scanning (DNS) to determine DNS derived information, the DNS derived information including a bearing and the receiver node's relative position relative to the transmitter node; and output a position, navigation, and timing (PNT) solution based at least on the DNS derived information.
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公开(公告)号：US20240134033A1
公开(公告)日：2024-04-25
申请号：US18547026
申请日：2022-03-04
申请人： Robert Bosch GmbH
CPC分类号： G01S13/583 , G01S7/0232 , G01S7/0235 , G01S13/282 , G01S17/26 , G01S17/58
摘要： A method for determining a movement state of a rigid body relative to an environment using a multiplicity of measurement data sets relating to objects in the environment around the body. Each measurement data set includes a measurement time, a Doppler velocity, and an azimuth angle in relation to a respective sensor reference system. The method includes determining a movement state of the body relative to the environment as a velocity vector and an angular velocity vector in a body reference system. At least one set of conditions that includes a plurality of measurement data sets is created. A function dependent on Doppler velocity deviations between estimated Doppler velocities and the Doppler velocities of the measurement data sets included in the set of conditions is minimized in a regression analysis for the set of conditions. The estimated Doppler velocities are regarded as dependent variables in the regression analysis.
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公开(公告)号：US11918330B2
公开(公告)日：2024-03-05
申请号：US16211886
申请日：2018-12-06
申请人： Praesidium, Inc.
发明人： Seth Campbell , Richard Curtis Nordgran , Weston Brent Johnson , Paolo Focardi , Gian Franco Sacco , Jim Butler
CPC分类号： A61B5/02444 , A61B5/0077 , A61B5/0816 , A61B5/746 , G01S13/583 , G01S13/867 , G01S13/886 , A61B2505/07 , A61B2560/0214
摘要： A occupant detection and monitoring system has a sensor unit having a radio wave transmitter, a radio wave receiver, and a wireless transmitter configured to detect and receive vital signs of an occupant; a user interface having a microcontroller, a wireless receiver configured to receive the wireless signals transmitted from the sensor unit, a means for user input, and a network card; and a means for alerting occupants and third-parties to a triggering event; wherein the microcontroller, based upon logic, activates the alerting means at the triggering event. The sensor unit may be a camera that detects the presence of an individual and register their unique heart rhythm for identification purposes. This camera can be installed at the entry points of a home, behind the counter of a business near a cash register or at a bank or any other place that desires to use surveillance as a form of security. The sensor unit may be a light bulb that comprises the components of the sensor unit. The sensor unit may be a contactless vital sign monitor capable of remotely monitoring one or more vital signs.
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公开(公告)号：US11899127B2
公开(公告)日：2024-02-13
申请号：US17132077
申请日：2020-12-23
发明人： Stephen Crouch , Chunshu Li
IPC分类号： G01S7/35 , H01Q3/36 , G01S13/931 , G01S13/58 , G01S13/00 , G01S13/42 , G01S13/34 , G01S13/87 , G01S7/40
CPC分类号： G01S7/354 , G01S13/003 , G01S13/583 , G01S13/931 , H01Q3/36 , G01S7/4026 , G01S13/343 , G01S13/42 , G01S13/426 , G01S13/584 , G01S13/878
摘要： A multiple input multiple output (MIMO) radar system synthesizes a virtual antenna array where at least a subset of the transmit antennas and receive antennas forming the virtual antenna array are disposed in different local oscillator domains. In some instances, doing so enables radar sensors to be constructed using multiple Antenna On Package (AOP) devices that lack support for cascading or that otherwise would have limited angular resolution on their own to adequately discriminate between various objects in the environment of an autonomous or other vehicle to be used collectively by a vehicle control system in connection with the autonomous control of a vehicle.
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