公开(公告)号：US10803848B1

公开(公告)日：2020-10-13

申请号：US16691639

申请日：2019-11-22

申请人： THE BOEING COMPANY

发明人： James J. Troy

IPC分类号： G10K11/28 ,  G10L25/51 ,  G01S3/801 ,  G06T7/20 ,  H04R1/34

摘要： An audio instrument includes a component assembly, a pan-tilt mechanism, and one or more processors. The component assembly includes a parabolic reflector, an audio device, and a sensor unit. The audio device is configured to one or more of receive or transmit sound waves via a transducer element disposed within a communication envelope of the parabolic reflector. The sensor unit includes a distance measurement sensor. The pan-tilt mechanism orients the component assembly at independent angular rotations about two orthogonal axes relative to a support platform. The one or more processors are configured to control the pan-tilt mechanism to orient the component assembly such that a central axis of the parabolic reflector is aimed towards a specific three-dimensional location for targeted audio communication between the audio device and a target at the specific three-dimensional location.

公开(公告)号：US20200319288A1

公开(公告)日：2020-10-08

申请号：US16906756

申请日：2020-06-19

申请人： Fiber Optic Sensor Systems Technology Corporation

发明人： Christopher Vizas ,  Nicholas Lagakos ,  Patrick Hernandez

IPC分类号： G01S3/80 ,  G01H9/00 ,  G01L15/00 ,  G01L23/16 ,  G01S3/801 ,  G01S3/808

摘要： An aspect of the invention is directed to a system of both atmospheric and underwater sensors for measuring pressure waves from a noise source. A system of pressure sensors can be formed to determine the location of an external noise source, whether in air or underwater. The system includes at least two arrays consisting of pressure sensors, including at least one atmospheric pressure sensor and at least one underwater pressure sensor, such as a hydrophone. Each sensor may be a seven-fiber intensity modulated fiber optic pressure sensor. The system includes an analog to digital converter for digitizing the pressure data received from each sensor and a processor which processes the received signals to calculate an approximate location of the noise source based upon the pressure signals received by the sensors at different times of arrival. The system can provide this capability in remote applications due to its low power requirements.

公开(公告)号：US10453212B2

公开(公告)日：2019-10-22

申请号：US15603411

申请日：2017-05-23

申请人： VIVOTEK INC.

发明人： Cheng-Chieh Liu

IPC分类号： G06T7/00 ,  G06T7/70 ,  G01S3/781 ,  G01S3/783 ,  G01S3/801 ,  G01S3/803 ,  G01S5/18 ,  G06T7/20 ,  G01S5/02 ,  G01S5/16

摘要： A wireless transmitting/receiving system includes a transmitter, a first directional receiver, a camera, a storage device and a processor. The transmitter is disposed on a target object and transmits a wireless signal. The first directional receiver is disposed with respect to an entry/exit boundary. The first directional receiver receives the wireless signal and generates a first received signal strength indication. The camera captures an image of the entry/exit boundary. The storage device stores a mapping table of target object location and received signal strength. The processor is electrically connected to the storage device and determines a location of the target object and a moving direction of the target object with respect to the entry/exit boundary according to the image and the mapping table of target object location and received signal strength.

公开(公告)号：US20190235044A1

公开(公告)日：2019-08-01

申请号：US16378543

申请日：2019-04-08

申请人： SUZHOU TOUCHAIR TECHNOLOGY CO., LTD.

发明人： Guangsong Liu

IPC分类号： G01S3/801

CPC分类号： G01S3/801 ,  G01S5/00

摘要： Embodiments of the present disclosure provide a positioning system and positioning method. A reverse calibrator for respectively calibrating relative coordinates of at least three ultrasound generators; a processor for generating a carrier signal, multiplying the carrier signal with a spread spectrum pseudo random code to obtain ranging signal, controlling each ultrasound generator to emit ranging signal, and extracting acoustic characteristic parameter of the ranging signals; a device being positioned for capturing ranging signals emitted by each generator, extracting acoustic characteristic parameter of each of the captured ranging signals; determining an ultrasonic delay time of each ultrasonic ranging signal; calculating relative coordinates of the device.

公开(公告)号：US20190162811A1

公开(公告)日：2019-05-30

申请号：US16246428

申请日：2019-01-11

申请人： ZHEJIANG DAHUA TECHNOLOGY CO., LTD.

发明人： Gang QIAO ,  Ya GAO

IPC分类号： G01S3/802 ,  G01S3/801 ,  G10L17/00 ,  G10L17/06 ,  H04R1/40 ,  H04R3/00 ,  G10L25/51 ,  H04R1/02 ,  G06K9/00

CPC分类号： G01S3/802 ,  G01S3/80 ,  G01S3/801 ,  G01S3/803 ,  G01S3/805 ,  G01S5/20 ,  G01S5/30 ,  G06K9/00845 ,  G10L17/005 ,  G10L17/06 ,  G10L25/51 ,  H04R1/028 ,  H04R1/406 ,  H04R3/005

摘要： A method and system for locating a sound source are provide. The method may include detecting a sound signal of a sound by each of two audio sensors. The method may also include converting the sound signals detected by the two audio sensors from a time domain to a frequency domain. The method may further include determining a high frequency ratio of each of the sound signals in the frequency domain. The method may further include determining a direction of the sound source based on the high frequency ratios.

公开(公告)号：US20190056473A1

公开(公告)日：2019-02-21

申请号：US15970369

申请日：2018-05-03

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Maxim K. Zalalutdinov ,  Douglas M. Photiadis ,  Joseph A. Bucaro ,  Brian H. Houston

IPC分类号： G01S3/803 ,  G01S3/801

摘要： Systems and methods are provided for sensing acoustic signals using a floating base vector sensor. A vector sensor according to an embodiment of the present disclosure can be used to detect and characterize low frequency sound wave(s) in a viscous medium (e.g., air, water, etc.) by detecting a periodic motion of the media particles associated with the sound wave(s). The orientation of the particle velocity deduced from such measurements can provide information regarding the wave vector of the sound wave(s), can define the direction of arrival (DOA) for the acoustic signal, and can assist locating the source of the sound of interest.

公开(公告)号：US20170038454A1

公开(公告)日：2017-02-09

申请号：US15229324

申请日：2016-08-05

申请人： Electronics and Telecommunications Research Institute

发明人： Keun Young KIM ,  Yeong Jin KIM ,  Seung Chan BANG ,  Moon Sik LEE ,  Sang Ho LEE ,  Jun Hwan LEE

IPC分类号： G01S3/781 ,  G01S3/801

CPC分类号： G01S3/781 ,  G01S3/801 ,  G01S5/16 ,  G01S5/30

摘要： Provided is a method for estimating a signal generation position based on signal strength, including: measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point; measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point; calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; and estimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant, wherein the first measurement point, the second measurement point, and the generation position are present on one straight line. This method can be extended to estimate a signal generation point in 2D plane or 3D space.

摘要翻译： 提供了一种用于基于信号强度估计信号生成位置的方法，包括：测量作为在第一测量点处的信号的生成位置传播的信号的强度的第一信号强度; 测量第二信号强度，其是从与第一测量点区分开的第二测量点处的信号的产生位置传播的信号的强度; 计算信号从所述生成位置传播到所述第一测量点和所述第二测量点的介质的衰减常数; 并且通过使用第一信号强度，第二信号强度和衰减常数来估计生成位置，其中第一测量点，第二测量点和生成位置存在于一条直线上。 该方法可以扩展到2D平面或3D空间中的信号生成点。

公开(公告)号：US09464787B2

公开(公告)日：2016-10-11

申请号：US13893400

申请日：2013-05-14

申请人： Koninklijke Philips Electronics N.V.

发明人： Tim Corneel Wilhelmus Schenk ,  Lorenzo Feri ,  Hendricus Theodorus Gerardus Maria Penning De Vries

IPC分类号： G01S3/80 ,  G01S11/00 ,  F21V14/02 ,  H05B37/02 ,  G01S11/14 ,  G01S3/801

CPC分类号： F21V14/02 ,  G01S3/801 ,  G01S11/14 ,  H05B33/0803 ,  H05B33/086 ,  H05B37/029

摘要： A direction controllable lighting unit 10 for use in a lighting system is described. The light emission of the lighting unit 10 may be directed into different directions, e.g. by use of a mechanically movable element 14, 60. At least two ultrasound transmitters 20a, 20b, or ultrasound receivers 21a, 21b are disposed at the lighting unit 10 such that they differ in position, or in direction or shape of the spatial intensity distribution or spatial distribution of reception sensitivity. A mobile control element 46 has at least one corresponding ultrasound transmitter or receiver 50. A difference bebveen a signal from a transmitter received at multiple receivers, or a signal of multiple transmitters received at a single receiver is used to determine a relative direction of the direction controllable lighting unit 10 and the control element 46, and to control the direction of the lighting unit 10 in dependence thereof.

摘要翻译： 描述了用于照明系统中的方向可控照明单元10。 照明单元10的发光可以被引导到不同的方向，例如， 通过使用机械可移动元件14,60。至少两个超声波发射器20a，20b或超声波接收器21a，21b设置在照明单元10处，使得它们在空间强度分布的位置或方向或形状上不同 或接收灵敏度的空间分布。 移动控制元件46具有至少一个对应的超声波发射器或接收器50.差异来自在多个接收器处接收的发射器的信号，或者在单个接收机处接收的多个发射机的信号被用于确定方向的相对方向 可控照明单元10和控制元件46，并且依照其控制照明单元10的方向。

公开(公告)号：US6166689A

公开(公告)日：2000-12-26

申请号：US63113

申请日：1970-08-12

申请人： Frank R. Dickey, Jr. ,  Judson J. Gostin ,  Gene P Hammel ,  Kalevi Hoobert Huhta ,  Ayhan M. Vural

发明人： Frank R. Dickey, Jr. ,  Judson J. Gostin ,  Gene P Hammel ,  Kalevi Hoobert Huhta ,  Ayhan M. Vural

IPC分类号： G01S3/04 ,  G01S3/46 ,  G01S3/74 ,  G01S3/80 ,  G01S3/801 ,  G01S3/808 ,  G01S7/28 ,  G01S13/02 ,  H01Q3/26 ,  G01S3/16 ,  H01Q3/22

CPC分类号： H01Q3/2605 ,  G01S3/043 ,  G01S3/46 ,  G01S3/74 ,  G01S3/8006 ,  G01S3/801 ,  G01S3/808 ,  G01S7/2813 ,  G01S2013/0245

摘要： An adaptive beamformer and signal processor for sonar and other signal receptor arrays, in which beamforming is accomplished by correlation feedback loops providing matched weighting across the array. To constrain the adaptive beamformer thus comprised against cancellation of useful signals from a particular angular region, which normally is the beam mainlobe or boresight region, one or more spatial notch filters are interposed within the correlation feedback loops for preventing signal suppression within such angular region.

摘要翻译： 用于声纳和其他信号接收器阵列的自适应波束形成器和信号处理器，其中波束成形由相关反馈回路实现，在阵列上提供匹配的加权。 为了约束自适应波束成形器，由此抵消来自通常是波束主瓣或视轴区域的特定角度区域的有用信号的消除，在相关反馈回路内插入一个或多个空间陷波滤波器，以防止在该角度区域内的信号抑制。

公开(公告)号：US6108270A

公开(公告)日：2000-08-22

申请号：US348016

申请日：1999-07-06

申请人： Martin L. DePoy, II

发明人： Martin L. DePoy, II

IPC分类号： F41G7/22 ,  G01S3/801 ,  G01S3/802 ,  G01S3/803 ,  G01S5/18 ,  G01S3/80 ,  F42B19/01 ,  H04R17/00

CPC分类号： F41G7/228 ,  G01S3/801 ,  G01S3/8025 ,  G01S3/803 ,  G01S5/18

摘要： A torpedo seeker head for providing guidance information in three orthogonal axes is provided according to the invention. The torpedo seeker head includes three directional hydrophones, with each directional hydrophone capable of receiving an acoustic signal and generating a signal output therefrom. The three directional hydrophones are aligned with their response axes oriented substantially orthogonally, with any two directional hydrophones and respective axes defining a plane. An omni-directional hydrophone is also provided which measures a phase of a received acoustic signal. The signal outputs from the any two directional hydrophones, in conjunction with the phase from the omni-directional hydrophone are used to calculate a look angle to a target in a plane defined by the any two hydrophones, with the measurement being substantially independent of frequency. The three directional hydrophones yield look angles in three dimensions. The torpedo seeker head utilizes this information to provide guidance information to the torpedo.

摘要翻译： 根据本发明提供了一种用于在三个正交轴中提供引导信息的鱼雷探头。 鱼雷引导头包括三个定向水听器，每个定向水听器能够接收声信号并产生从其输出的信号。 三个方向的水听器与其响应轴基本上正交地对准，任何两个定向水听器和相应的轴定义一个平面。 还提供了一种测量接收到的声信号的相位的全向水听器。 来自任何两个定向水听器的信号输出结合来自全向水听器的相位用于计算由任何两个水听器定义的平面中的目标的视角，测量基本上与频率无关。 三维水听器在三维方面产生了视角。 鱼雷探头使用这些信息为鱼雷提供指导信息。