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公开(公告)号：US11333757B2
公开(公告)日：2022-05-17
申请号：US16261062
申请日：2019-01-29
Applicant: Teledyne Instruments, Inc.
Inventor： Paul Wanis , Jerker Taudien
Abstract: An acoustic transducer and method of generating acoustic transmit and receive beams is disclosed. The system includes a plurality of transducer elements arranged to form an array, where the elements are electrically connected into groups which operate at the same electrical phase, where the phases of adjacent groups of elements differ by between about 50 and 70 degrees and a beamforming circuit where the transmit and receive signals are operated with appropriate phase shifts to maintain the between about 50 and 70 degrees phase difference between adjacent groups. The resulting transducer generates transmit and receive beams that are nominally inclined less than about 30 degrees from a planar normal axis of the array.
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公开(公告)号：US11879971B2
公开(公告)日：2024-01-23
申请号：US17131033
申请日：2020-12-22
Applicant: Teledyne Instruments, Inc.
Inventor： Blair H. Brumley , Jerker Taudien
CPC classification number: G01S15/60 , G01S7/521 , G01S7/52003
Abstract: A small aperture acoustic velocity sensor and a method for velocity measurement are disclosed. In one aspect, the disclosed technology uses spatially-shifted sub-arrays for projection and/or hydrophone receipt and cross-correlation of successive pulses to improve correlation and reduce bias. The spatial shift can be created physically by selection of groups of elements or virtually by weighting the contributions of fixed sub-arrays. Spatial modulation can be used to form a projected signal and measured spatial phase of slope across the set of sub-arrays allows correction of both long- and short-term errors. The disclosed technology uses spatial and/or temporal interpolation.
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公开(公告)号：US11630205B2
公开(公告)日：2023-04-18
申请号：US16588892
申请日：2019-09-30
Applicant: Teledyne Instruments, Inc.
Inventor： Jerker Taudien , Steven Webb
Abstract: An acoustic dual-frequency phased array system with common beam angles is disclosed. In one aspect, the system includes a planar array of transducer elements and a multiplexing circuit for selecting between a first state and a second state during either transmit operation, receive operation or both transmit and receive operation. The multiplexer is configured to connect transducer elements to a plurality of connections different between the first state and second state. The system is configured to transmit and receive beams at a first frequency when the multiplexer is in the first state and transmit and receive beams at a second frequency when the multiplexer is in the second state. The angle of the beams from vertical in the first and second state are substantially similar.
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公开(公告)号：US11567196B2
公开(公告)日：2023-01-31
申请号：US16143173
申请日：2018-09-26
Applicant: Teledyne Instruments, Inc.
Inventor： Jerker Taudien
Abstract: An underwater active sonar system and method for measuring instrument velocity with respect to a boundary surface is disclosed. The system includes an acoustic transducer configured to transmit and receive a plurality of acoustic beams in different directions. The system also includes a processor configured to detect a boundary surface within each beam; iteratively filter received acoustic signals backscattered from the transmitted beams with an adaptive filter and associated bandwidth that is successively decreased for each iteration; and measure instrument velocity with respect to the boundary surface.
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公开(公告)号：US20170031020A1
公开(公告)日：2017-02-02
申请号：US15221388
申请日：2016-07-27
Applicant: Teledyne Instruments, Inc.
Inventor： Blair H. Brumley , Jerker Taudien
IPC: G01S15/60
CPC classification number: G01S15/60 , G01S7/52003 , G01S7/521
Abstract: A small aperture acoustic velocity sensor and a method for velocity measurement are disclosed. In one aspect, the disclosed technology uses spatially-shifted sub-arrays for projection and/or hydrophone receipt and cross-correlation of successive pulses to improve correlation and reduce bias. The spatial shift can be created physically by selection of groups of elements or virtually by weighting the contributions of fixed sub-arrays. Spatial modulation can be used to form a projected signal and measured spatial phase of slope across the set of sub-arrays allows correction of both long- and short-term errors. The disclosed technology uses spatial and/or temporal interpolation.
Abstract translation: 公开了一种小孔径声速传感器和速度测量方法。 在一个方面，所公开的技术使用空间位移子阵列用于连续脉冲的投影和/或水听器接收和互相关，以改善相关性并减少偏差。 可以通过选择元素组或通过对固定子阵列的贡献进行加权来物理地产生空间位移。 空间调制可用于形成投影信号，并且跨越该子阵列的斜率的测量空间相位允许校正长期和短期误差。 所公开的技术使用空间和/或时间插值。
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Patent Agency Ranking
公开(公告)号：US20250093483A1
公开(公告)日：2025-03-20
申请号：US18967582
申请日：2024-12-03
Applicant: Teledyne Instruments, Inc.
Inventor： Jerker Taudien , Blair Brumley
Abstract: A sonar system and method for measuring relative velocity between a transducer and a scattering surface or volume is disclosed. The system utilizes phased array or piston transducers that project acoustic beams in different directions. Each projection consists of multiple sub-waveforms of different center frequencies that are either frequency steered into different directions such that the acoustic beams ensonify different scatterers or sufficiently separated in frequency to obtain independent estimates of velocity. Each received return signal is used to estimate an independent relative velocity between the transducer and scatterers, and the estimated velocities are averaged to reduce the single-ping standard deviation of the velocity error. Different lags may be used in the different sub-waveforms, wherein shorter lags are used to ambiguity resolve longer lags such that the system ambiguity velocity is sufficiently high, and the single-ping variance decreases below what would be possible when only using a short lag.
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公开(公告)号：US20210341600A1
公开(公告)日：2021-11-04
申请号：US16143173
申请日：2018-09-26
Applicant: Teledyne Instruments, Inc.
Inventor： Jerker Taudien
Abstract: An underwater active sonar system and method for measuring instrument velocity with respect to a boundary surface is disclosed. The system includes an acoustic transducer configured to transmit and receive a plurality of acoustic beams in different directions. The system also includes a processor configured to detect a boundary surface within each beam; iteratively filter received acoustic signals backscattered from the transmitted beams with an adaptive filter and associated bandwidth that is successively decreased for each iteration; and measure instrument velocity with respect to the boundary surface.
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公开(公告)号：US20210181339A1
公开(公告)日：2021-06-17
申请号：US17131033
申请日：2020-12-22
Applicant: Teledyne Instruments, Inc.
Inventor： Blair H. Brumley , Jerker Taudien
Abstract: A small aperture acoustic velocity sensor and a method for velocity measurement are disclosed. In one aspect, the disclosed technology uses spatially-shifted sub-arrays for projection and/or hydrophone receipt and cross-correlation of successive pulses to improve correlation and reduce bias. The spatial shift can be created physically by selection of groups of elements or virtually by weighting the contributions of fixed sub-arrays. Spatial modulation can be used to form a projected signal and measured spatial phase of slope across the set of sub-arrays allows correction of both long- and short-term errors. The disclosed technology uses spatial and/or temporal interpolation.
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公开(公告)号：US20210173079A1
公开(公告)日：2021-06-10
申请号：US16588892
申请日：2019-09-30
Applicant: Teledyne Instruments, Inc.
Inventor： Jerker Taudien , Steven Webb
Abstract: An acoustic dual-frequency phased array system with common beam angles is disclosed. In one aspect, the system includes a planar array of transducer elements and a multiplexing circuit for selecting between a first state and a second state during either transmit operation, receive operation or both transmit and receive operation. The multiplexer is configured to connect transducer elements to a plurality of connections different between the first state and second state. The system is configured to transmit and receive beams at a first frequency when the multiplexer is in the first state and transmit and receive beams at a second frequency when the multiplexer is in the second state. The angle of the beams from vertical in the first and second state are substantially similar.
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公开(公告)号：US20190242994A1
公开(公告)日：2019-08-08
申请号：US16261062
申请日：2019-01-29
Applicant: Teledyne Instruments, Inc.
Inventor： Paul Wanis , Jerker Taudien
Abstract: An acoustic transducer and method of generating acoustic transmit and receive beams is disclosed. The system includes a plurality of transducer elements arranged to form an array, where the elements are electrically connected into groups which operate at the same electrical phase, where the phases of adjacent groups of elements differ by between about 50 and 70 degrees and a beamforming circuit where the transmit and receive signals are operated with appropriate phase shifts to maintain the between about 50 and 70 degrees phase difference between adjacent groups. The resulting transducer generates transmit and receive beams that are nominally inclined less than about 30 degrees from a planar normal axis of the array.
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