公开(公告)号：US20230341547A1

公开(公告)日：2023-10-26

申请号：US18120609

申请日：2023-03-13

申请人： Harbin Engineering University

发明人： Shengchun PIAO ,  Yunjia SHI ,  Junyuan GUO ,  Minghui ZHANG

IPC分类号： G01S15/50 ,  G01S15/88 ,  G06F17/11

CPC分类号： G01S15/50 ,  G01S15/88 ,  G06F17/11

摘要： The present disclosure belongs to the field of underwater target detection, and in particular, to a method for detecting a moving target based on spatial slices of transformed spatio-temporal frequency space. The method includes: segmenting a target radiated acoustic signal received by an M-element horizontal line array in an underwater acoustic environment with a low signal-to-noise ratio (SNR); performing N-point discrete Fourier transform (DFT) on the received signal on each array element in each period of time; performing frequency domain beamforming on an array signal after each section of DFT, and performing stacking after compensating a phase difference between arrays brought by an azimuth of each primitive element; performing coordinate transformation on a frequency-azimuth-time three-dimensional (3D) matrix space obtained; taking a slice from the obtained frequency-azimuth-time 3D space subjected to the coordinate transformation; and performing segmented Radon transform on the spatial slice obtained to detect the target.

公开(公告)号：US20180074177A1

公开(公告)日：2018-03-15

申请号：US15558931

申请日：2016-01-29

申请人： Toposens GmbH

发明人： Alexander Rudoy

IPC分类号： G01S13/00 ,  G01S13/87 ,  G01S15/00 ,  G01S17/00 ,  G01S15/87 ,  G01S7/41 ,  G01S7/48 ,  G01S7/539

CPC分类号： G01S13/003 ,  G01S7/41 ,  G01S7/4802 ,  G01S7/539 ,  G01S13/46 ,  G01S13/878 ,  G01S13/89 ,  G01S15/003 ,  G01S15/46 ,  G01S15/50 ,  G01S15/876 ,  G01S15/89 ,  G01S15/96 ,  G01S17/003 ,  G01S17/46 ,  G01S17/50 ,  G01S17/87 ,  G01S17/89 ,  G01S2013/466 ,  G01S2015/465

摘要： A device and method for determining the three-dimensional position of an object. The device comprises at least one transmitter that is adapted to emit a signal; at least three receivers, wherein the at least three receivers and the at least one transmitter are preferably arranged within a first plane, wherein a first receiver and a second receiver are preferably arranged along a first straight line, and a third receiver is preferably arranged at a distance from the first straight line; and a processor that is configured to determine at least three propagation times, wherein the respective propagation time is a time required by the signal from the transmitter via the object to the respective receiver, and wherein the processor is further configured to determine the three-dimensional position of the object on the basis of the determined propagation times as well as on the basis of the arrangement of the transmitter and the receivers.

公开(公告)号：US09771055B1

公开(公告)日：2017-09-26

申请号：US15340556

申请日：2016-11-01

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Xian Zhang ,  Xiaofeng F. Song ,  Paul A. Adam ,  Dmitriy Feldman

IPC分类号： G06F7/70 ,  G06F19/00 ,  B60T8/174 ,  B60W40/10 ,  B60W30/09 ,  G01S13/93

CPC分类号： B60T8/174 ,  B60T7/22 ,  B60T8/17558 ,  B60T2201/00 ,  B60T2201/024 ,  B60T2250/04 ,  B60W30/09 ,  B60W40/10 ,  G01S13/50 ,  G01S13/87 ,  G01S13/931 ,  G01S15/50 ,  G01S15/87 ,  G01S15/931 ,  G01S17/50 ,  G01S17/87 ,  G01S17/936 ,  G01S2013/9353 ,  G01S2013/9364 ,  G01S2013/9367 ,  G01S2013/9375 ,  G01S2013/9378 ,  G01S2013/9385 ,  G01S2015/937

摘要： A front impact mitigation system for a host vehicle and a method for operating a front impact mitigation system. The front impact mitigation system can take into account the position of a rear object that trails the host vehicle to develop a modified front impact mitigation control signal that at least partially mitigates the likelihood of certain rear impact collisions between the rear object and the host vehicle when the host vehicle is responding to the presence of an impending leading obstacle. A modified front impact mitigation control signal may be developed to account for the speed of the host vehicle and the distance that the rear object trails the host vehicle.

公开(公告)号：US09661470B1

公开(公告)日：2017-05-23

申请号：US14875065

申请日：2015-10-05

申请人： Google Inc.

发明人： Paul Du Bois ,  Greg Joseph Klein

IPC分类号： H04W24/00 ,  H04W4/02 ,  H04W12/08

CPC分类号： H04W4/027 ,  G01S13/04 ,  G01S13/50 ,  G01S15/04 ,  G01S15/50 ,  G01S17/023 ,  G01S17/026 ,  G01S17/50 ,  G01S17/89 ,  H04L67/12 ,  H04W12/08 ,  H04W84/18

摘要： Examples methods and systems for locating an actor in an environment are described herein. For example, an information system may receive point cloud data representing a cluster of potential actors at a location in the environment. In addition, the information system may also receive location information from a device indicating that the current location of the device is proximate to the location of the cluster of potential actors. Based on movement information from the device that indicates movements of the device, the information system may determine a portion of the point cloud data that displays movements that matches the movement of the device. Using the determined portion of the point cloud, the information system may identify a particular actor of the cluster that corresponds to the device and provide an output signal indicating that the determined portion of the point cloud represents the identified particular actor.

公开(公告)号：US20140206989A1

公开(公告)日：2014-07-24

申请号：US14088906

申请日：2013-11-25

申请人： Christopher Max Colice ,  Brett E. Bouma ,  Guillermo J. Tearney ,  Jinyong Ha ,  Milen Shishkov

发明人： Christopher Max Colice ,  Brett E. Bouma ,  Guillermo J. Tearney ,  Jinyong Ha ,  Milen Shishkov

IPC分类号： A61B5/00 ,  A61B8/12 ,  A61B8/08

CPC分类号： A61B5/0084 ,  A61B5/0062 ,  A61B5/0066 ,  A61B5/0097 ,  A61B5/1076 ,  A61B5/1114 ,  A61B5/489 ,  A61B5/6844 ,  A61B5/6852 ,  A61B8/08 ,  A61B8/0891 ,  A61B8/12 ,  A61B8/488 ,  A61B90/36 ,  A61B2090/364 ,  A61B2090/3782 ,  G01S15/50 ,  G01S15/60 ,  G01S15/87 ,  G01S17/50 ,  G01S17/87

摘要： Exemplary embodiments of apparatus, method and computer accessible medium can be provided which can facilitate a determination of at least one characteristic of a structure. For example, it is possible to use at least one first arrangement which can be structured to provide at least one first transmitted radiation along a first axis and at least one second transmitted radiation along a second axis. The first and second transmitted radiations can impact the structure and generate respective first and second returned radiation. The first and second axis can be provided at a predetermined angle with respect with one another which is greater than 0. Further, at least one second arrangement can be provided which can be configured to receive data associated with the first and second returned radiations, and determine at least one relative velocity between the structure and the first arrangement along the first and second axes.

摘要翻译： 可以提供装置，方法和计算机可访问介质的示例性实施例，其可以有助于确定结构的至少一个特征。 例如，可以使用至少一个第一布置，其可被构造成沿着第一轴线提供至少一个第一透射辐射以及沿着第二轴线提供至少一个第二透射辐射。 第一和第二透射辐射可以影响结构并产生相应的第一和第二反射辐射。 第一和第二轴线可以彼此相对于预定角度提供，该角度大于0.此外，可以提供至少一个第二布置，其可被配置为接收与第一和第二返回辐射有关的数据，以及 确定沿着第一和第二轴线的结构和第一布置之间的至少一个相对速度。

公开(公告)号：US20140029376A1

公开(公告)日：2014-01-30

申请号：US13950015

申请日：2013-07-24

申请人： SERCEL

发明人： Pierre Baliguet ,  Christophe L'Her

IPC分类号： G01V1/38

CPC分类号： G01V1/38 ,  G01S15/50 ,  G01V1/3817

摘要： A method and apparatus are provided for estimating the water speed of a first acoustic node D belonging to a network of acoustic nodes, at least some of the acoustic nodes being arranged along towed acoustic linear antennas (S). The method includes steps of: a) defining a N-dimensional base, the center of which is the first acoustic node and comprising a single axis, when N=1, or N non-collinear axes, when N=2 or N=3, each axis being associated with a base vector extending from the first acoustic node to another acoustic node; and b) estimating an amplitude of the water speed, as a function of: for each given other acoustic node defining the base vector: an acoustic propagation duration of an acoustic signal transmitted from the first acoustic node to the given other acoustic node, and an acoustic propagation duration of an acoustic signal transmitted from the given other acoustic nodes to the first acoustic node; and a value c of the underwater acoustic sound velocity.

摘要翻译： 提供了一种用于估计属于声音节点网络的第一声音节点D的水速的方法和装置，至少一些声学节点沿着拖曳的声学线性天线（S）布置。 该方法包括以下步骤：a）当N = 2或N = 3时，定义N维基座，其中心是N = 1或N个非共线轴，其中心是第一声节点，并且包括单个轴 每个轴与从第一声音节点延伸到另一个声音节点的基本矢量相关联; 以及b）估计水速度的幅度，作为以下的函数：对于定义所述基矢量的每个给定的其他声学节点：从所述第一声学节点发送到所述给定的其他声学节点的声学信号的声学传播持续时间，以及 从所述给定的其他声音节点发送到所述第一声音节点的声学信号的声学传播持续时间; 和水下声速的值c。

公开(公告)号：US08270253B1

公开(公告)日：2012-09-18

申请号：US13251908

申请日：2011-10-03

申请人： Martin Roche ,  Jason McIntosh ,  Marc Boillot

发明人： Martin Roche ,  Jason McIntosh ,  Marc Boillot

IPC分类号： G01S1/72

CPC分类号： G01S15/104 ,  A61B8/565 ,  A61B8/58 ,  G01S7/64 ,  G01S15/42 ,  G01S15/50 ,  G01S15/66 ,  G01S15/88 ,  G06F3/0325

摘要： A method for short range alignment using ultrasonic sensing is provided. The method includes shaping an ultrasonic pulse on a first device to produce a pulse shaped signal and transmitting the pulse shaped signal from the first device to a second device, receiving the pulse shaped signal and determining an arrival time of the pulse shaped, identifying a relative phase of the pulse shaped signal with respect to a previously received pulse shaped signal, identifying a pointing location of the first device from the arrival time and the relative phase, determining positional information of the pointing location of the first device, and reporting an alignment of three or more points in three-dimensional space. Other embodiments are disclosed.

摘要翻译： 提供了一种使用超声波感测的短距离对准方法。 该方法包括在第一装置上对超声波脉冲进行成形以产生脉冲形信号，并将脉冲形状信号从第一装置传送到第二装置，接收脉冲形状信号并确定脉冲形状的到达时间，识别相对 相对于先前接收到的脉冲形状信号的脉冲形状信号的相位，从到达时间和相对相位识别第一装置的指示位置，确定第一装置的指示位置的位置信息，并报告 三维或三维以上的三维空间。 公开了其他实施例。

公开(公告)号：US20120001875A1

公开(公告)日：2012-01-05

申请号：US12885151

申请日：2010-09-17

申请人： Ren Li ,  Te-Won Lee ,  Hui-ya L. Nelson ,  Samir K. Gupta

发明人： Ren Li ,  Te-Won Lee ,  Hui-ya L. Nelson ,  Samir K. Gupta

IPC分类号： G06F3/043

CPC分类号： G06F3/011 ,  G01S7/5273 ,  G01S15/325 ,  G01S15/50 ,  G01S15/876 ,  G06F3/017

摘要： The embodiments provide systems and methods for touchless sensing and gesture recognition using continuous wave sound signals. Continuous wave sound, such as ultrasound, emitted by a transmitter may reflect from an object, and be received by one or more sound receivers. Sound signals may be temporally encoded. Received sound signals may be processed to determine a channel impulse response or calculate time of flight. Determined channel impulse responses may be processed to extract recognizable features or angles. Extracted features may be compared to a database of features to identify a user input gesture associated with the matched feature. Angles of channel impulse response curves may be associated with an input gesture. Time of flight values from each receiver may be used to determine coordinates of the reflecting object. Embodiments may be implemented as part of a graphical user interface. Embodiments may be used to determine a location of an emitter.

摘要翻译： 这些实施例提供了使用连续波声信号的无接触感测和手势识别的系统和方法。 由发射器发射的连续波声，如超声波，可能会从物体反射，并由一个或多个声音接收器接收。 声音信号可能是时间编码的。 可以处理接收的声音信号以确定信道脉冲响应或计算飞行时间。 可以处理确定的信道脉冲响应以提取可识别的特征或角度。 提取的特征可以与特征数据库进行比较，以识别与匹配特征相关联的用户输入手势。 信道脉冲响应曲线的角度可以与输入手势相关联。 可以使用来自每个接收机的飞行时间值来确定反射对象的坐标。 实施例可以被实现为图形用户界面的一部分。 实施例可以用于确定发射器的位置。

公开(公告)号：US07388807B2

公开(公告)日：2008-06-17

申请号：US11573201

申请日：2005-06-30

申请人： Denis Pillon

发明人： Denis Pillon

IPC分类号： G01S15/50 ,  G01S15/66

CPC分类号： G01S15/50 ,  G01S7/4026 ,  G01S7/52004 ,  G01S7/5205 ,  G01S15/66 ,  G01S2007/403 ,  G01S2007/4091

摘要： The present invention relates to the angular calibration of passive reception systems such as sonars or active ones such as certain radars whose angular performance is inadequate.The invention proposes a method making it possible to perform antenna calibration using the detection system associated with this antenna under real operating conditions.The method according to the invention consists in making an immersed noisemaker deployed along a substantially rectilinear uniform trajectory and a submarine equipped with an antenna to be calibrated along any trajectory whatsoever, but nonrectilinear.The method according to the invention consists also in implementing a trajectography algorithm making it possible to determine the noisemaker-antenna relative distance at known instants the, and to deduce therefrom the trajectory followed by the noisemaker as well as the bearing corresponding to the positions of the noisemaker at the measurement instants. The bearing thus calculated is compared with the bearing measurements carried out directly by the sonar associated with the antenna to be calibrated.This method applies in particular to the calibration of sonar antennas during their commissioning.

摘要翻译： 无源接收系统的角度校准技术领域本发明涉及诸如声纳或被动接收系统的角度校准，例如角度性能不足的某些雷达。 本发明提出了一种使得可以在实际操作条件下使用与该天线相关联的检测系统进行天线校准的方法。 根据本发明的方法包括制造沿着基本上直线的均匀轨迹部署的浸没式噪声器，以及配备有沿着任何轨迹校准的天线的潜艇，但是非直线性。 根据本发明的方法还包括实施一种外形学算法，使得可以在已知时刻确定噪声干扰器 - 天线的相对距离，并且从其推导出噪声发生器跟随的轨迹以及对应于 在测量时刻发声。 将如此计算的轴承与与要校准的天线相关联的声纳直接执行的轴承测量进行比较。 该方法特别适用于声纳天线在调试过程中的校准。

公开(公告)号：US06778467B2

公开(公告)日：2004-08-17

申请号：US10234191

申请日：2002-09-05

申请人： Koji Tokuda ,  Shinji Ishihara

发明人： Koji Tokuda ,  Shinji Ishihara

IPC分类号： G01S1589

CPC分类号： G01S7/526 ,  G01S15/50 ,  G01S15/96 ,  Y10S367/904

摘要： A mixer shifts the center frequency of a received signal to a baseband according to a center frequency detected by a center frequency detector or a center frequency estimated from ship speed, for example, by a center frequency estimator. The passband of a variable passband filter varies according to a bandwidth detected directly from the received signal by a bandwidth detector or a bandwidth estimated from the pulselength of a transmitting signal by a bandwidth estimator, whereby the bandwidth of a baseband signal output from the mixer is limited to remove undesired noise components in the received signal.

摘要翻译： 混频器根据由中心频率检测器检测的中心频率或由船速估计的中心频率，例如由中心频率估计器将接收信号的中心频率移位到基带。 可变通带滤波器的通带根据由带宽检测器直接从接收信号检测的带宽或由带宽估计器从发送信号的脉冲长度估计的带宽而变化，由此从混频器输出的基带信号的带宽为 限于消除接收信号中的不需要的噪声分量。