公开(公告)号：US20160235046A1

公开(公告)日：2016-08-18

申请号：US15009920

申请日：2016-01-29

申请人： THE JOHNS HOPKINS UNIVERSITY

发明人： Ralph Etienne-Cummings ,  Emad Boctor ,  Xiaoyu Guo

IPC分类号： A01K85/01 ,  A01K99/00 ,  G01S7/00 ,  G01S7/56 ,  G01S15/96 ,  G01S15/89

CPC分类号： A01K85/01 ,  A01K99/00 ,  G01S7/521 ,  G01S7/56 ,  G01S15/025 ,  G01S15/74 ,  G01S15/89 ,  G01S15/8904 ,  G01S15/96

摘要： An underwater imaging system is disclosed. A boat sonar transducer is configured to transmit and receive sonar signals and generate an image of water and surfaces using received sonar signals. An active echo system is configured to be positioned within the water to remotely communicate with the boat sonar transducer. The active echo system includes an ultrasound transducer configured to detect sonar signals transmitted by the boat sonar transducer and transmit an active echo pulse, or a series of active echo pulses, back to the boat sonar transducer. A microprocessor is configured to drive the ultrasound transducer to transmit the active echo pulse, or series of active echo pulses, back to the boat sonar transducer in response to the ultrasound transducer detecting sonar signals transmitted by the boat sonar transducer.

摘要翻译： 公开了一种水下成像系统。 船声纳传感器被配置为发送和接收声纳信号，并使用接收的声纳信号产生水和表面的图像。 主动回波系统被配置为定位在水中以与船声纳传感器远程通信。 主动回波系统包括超声换能器，其被配置为检测由船声纳传感器发射的声纳信号，并将主动回波脉冲或一系列有效回波脉冲发送回到船声纳传感器。 微处理器被配置为响应于超声换能器检测由船用声纳传感器发射的声纳信号而驱动超声换能器将活动回波脉冲或一系列有效回波脉冲发送回船声纳传感器。

公开(公告)号：US09316734B2

公开(公告)日：2016-04-19

申请号：US14058395

申请日：2013-10-21

申请人： Joseph T. Case ,  Mohammad Tayeb Ghasr ,  Reza Zoughi

发明人： Joseph T. Case ,  Mohammad Tayeb Ghasr ,  Reza Zoughi

IPC分类号： G01S13/90 ,  G01S13/88 ,  G01V3/12 ,  G01S15/89

CPC分类号： G01S13/9035 ,  G01S13/88 ,  G01S13/885 ,  G01S13/887 ,  G01S13/888 ,  G01S13/90 ,  G01S15/8904 ,  G01V3/12

摘要： Wideband synthetic aperture radar (SAR) imaging. A probe transmits a signal through its aperture incident to an object located in a medium of interest remotely from the probe. The probe receives through the aperture a plurality of nonuniformly sampled reflected signals from the object as the probe moves in a measurement plane located a predetermined distance from the object. A processor executes a SAR-based reconstruction algorithm to generate an image.

摘要翻译： 宽带合成孔径雷达（SAR）成像。 探头通过其孔径将探测器远端的信号传输到位于感兴趣的介质中的物体。 当探头在距物体预定距离的测量平面中移动时，探头通过孔径接收来自物体的多个不均匀采样的反射信号。 处理器执行基于SAR的重建算法来生成图像。

公开(公告)号：US20160061950A1

公开(公告)日：2016-03-03

申请号：US14841118

申请日：2015-08-31

申请人： Yuan XU ,  Michael C. KOLIOS ,  Ping GONG ,  Ying LI

发明人： Yuan XU ,  Michael C. KOLIOS ,  Ping GONG ,  Ying LI

IPC分类号： G01S13/90

CPC分类号： G01S13/90 ,  G01S15/8904 ,  G01S15/8913 ,  G01S15/8997

摘要： The invention generally relates to the field of synthetic aperture imaging. In particular, the invention relates to systems and methods for generating synthetic transmit aperture (“STA”) signals and processing synthetic aperture imaging (“SAI”) signals for improved signal-to-noise ratio (“SNR”) and spatial resolution. This generally relates to a method to improve the signal-noise-ratio (SNR) of array signals by both encoding the transmission from multiple array elements with waveform modifications and time delays and encoding the receivers into output channels and decoding the measured signals at the selected output channels to estimate the equivalent received signals of a receiver as if only one transmitting element were fired individually in each transmission event. SAI techniques are subsequently applied to the equivalent SAI signals to obtain improved images.

摘要翻译： 本发明一般涉及合成孔径成像领域。 特别地，本发明涉及用于产生合成发射孔径（“STA”）信号和处理合成孔径成像（“SAI”）信号以提高信噪比（“SNR”）和空间分辨率的系统和方法。 这通常涉及一种通过对具有波形修改和时间延迟的多个阵列元件的传输进行编码来改进阵列信号的信噪比（SNR）的方法，并且将接收机编码为输出通道并且将所选择的测量信号解码 输出通道来估计接收机的等效接收信号，好像在每个传输事件中仅单​​独地发射一个发射元件。 SAI技术随后应用于等效的SAI信号以获得改进的图像。

公开(公告)号：US20140261138A1

公开(公告)日：2014-09-18

申请号：US14210060

申请日：2014-03-13

申请人： Hadal, Inc.

发明人： Richard J. Rikoski ,  Robert S. Damus ,  Jonathan Pompa ,  Dylan Owens ,  Richard Jenkins

IPC分类号： B63G8/39 ,  B63G8/00

CPC分类号： B63B35/40 ,  B22D31/00 ,  B29C44/3415 ,  B63B3/13 ,  B63B27/16 ,  B63B27/36 ,  B63B2027/165 ,  B63B2035/405 ,  B63G8/00 ,  B63G8/001 ,  B63G8/39 ,  B63G2008/004 ,  B63G2008/008 ,  F17C1/00 ,  G01S7/52004 ,  G01S15/02 ,  G01S15/104 ,  G01S15/107 ,  G01S15/588 ,  G01S15/60 ,  G01S15/8904 ,  H01M2/024 ,  H01M2/025 ,  H01M10/052 ,  H01M10/4257 ,  Y10T29/49117 ,  Y10T29/49826 ,  Y10T29/49893 ,  Y10T29/49989 ,  Y10T29/5176 ,  Y10T428/1352 ,  Y10T428/1376

摘要： Systems and methods for a robust underwater vehicle are described herein. A robust underwater vehicle may include a force-limiting coupler connecting an actuation system to an actuation fin. The force-limiting coupler may be configured to break away from the actuation system upon receiving a threshold force. The robust underwater vehicle may also comprise hull sections connected by a threaded turnbuckle. Carbon-fiber axial strength members may mate with the threaded turnbuckle to pull the hull sections together to a specified preload tension. The robust underwater vehicle may also include a blazed sonar array protected by a carbon fiber bow including a plurality of slits. The plurality of slits may provide significant protection to the sonar array while simultaneously allowing one or more transducers to transmit sonar signals in a two-dimensional plane.

摘要翻译： 本文描述了用于强壮的水下航行器的系统和方法。 坚固的水下航行器可以包括将致动系统连接到致动翼片的限力耦合器。 力限制联接器可以构造成在接收到阈值力时从致动系统脱离。 坚固的水下航行器还可以包括通过螺纹螺丝扣连接的船体部分。 碳纤维轴向强度构件可以与螺纹螺丝扣配合，以将船体部分拉到一起，达到规定的预紧力。 坚固的水下航行器还可以包括由包括多个狭缝的碳纤维弓保护的闪耀的声纳阵列。 多个狭缝可以对声纳阵列提供显着的保护，同时允许一个或多个换能器在二维平面中传输声纳信号。

公开(公告)号：US20120281506A1

公开(公告)日：2012-11-08

申请号：US13466067

申请日：2012-05-07

申请人： Richard J. Rikoski

发明人： Richard J. Rikoski

IPC分类号： G01S15/89

CPC分类号： G01V1/38 ,  G01C21/005 ,  G01C21/203 ,  G01S7/52003 ,  G01S7/5203 ,  G01S15/89 ,  G01S15/8904 ,  G05D1/0692

摘要： The systems and methods described herein relate to systems and methods for synthetic aperture sonar (SAS) or radar including simultaneous localization and mapping (SLAM) for holographic navigation.

摘要翻译： 本文描述的系统和方法涉及用于全息导航的合成孔径声纳（SAS）或雷达的系统和方法，包括同时定位和映射（SLAM）。

公开(公告)号：US08299959B2

公开(公告)日：2012-10-30

申请号：US12821763

申请日：2010-06-23

申请人： Martin Vossiek ,  Stephan Max

发明人： Martin Vossiek ,  Stephan Max

IPC分类号： G01S13/00

CPC分类号： G01S13/9035 ,  G01S13/42 ,  G01S15/8904

摘要： The invention relates to an imaging method with synthetic aperture for determining an incident angle and/or a distance of a sensor from at least one object in space, wherein at each of a number of aperture points one echo profile is sensed. Advantageously, for several angles assumed as the incident angle, one phase correction value and/or one distance correction value is calculated, adapted profiles are generated based on the echo profiles by adapting the phase with the phase correction value for each assumed angle and/or by shifting the distance with the distance correction value, for the assumed angle, the adapted profiles are summed or integrated, and a probability distribution is derived, and a probability value for the incident angle and/or for the distance is determined therefrom. A determination of the incident angle is also possible independently of the distance, wherein it is possible to only consider velocities or accelerations.

摘要翻译： 本发明涉及一种具有用于确定传感器与空间中的至少一个物体的入射角和/或距离的合成孔径的成像方法，其中在多个孔径点的每一个处检测到一个回波分布。 有利地，对于假定为入射角的几个角度，计算一个相位校正值和/或一个距离校正值，通过使用具有每个假设角度的相位校正值的相位来适应基于回波分布的自适应曲线和/或 通过用距离校正值移动距离，对于假定角度，将适配曲线相加或积分，并且导出概率分布，并且从其确定入射角和/或距离的概率值。 入射角的确定也可以与距离无关，其中可以仅考虑速度或加速度。

公开(公告)号：US07898457B2

公开(公告)日：2011-03-01

申请号：US12294811

申请日：2007-03-19

申请人： Mohammed Jahangir

发明人： Mohammed Jahangir

IPC分类号： G01S13/90

CPC分类号： G01S13/9029 ,  G01S15/8904

摘要： A method of processing a temporal sequence of base images from a synthetic aperture system such as a synthetic aperture radar is provided that simplifies the task of identifying moving objects. The method comprises the steps of firstly temporally filtering a plurality of the base images to form a reference image, and secondly normalising the reference image with a base image to form a change detection image. The change detection image has the property that all moving objects are emphasised. Further processing can optionally be performed on the change detection image to remove false targets based on characteristics of the highlighted areas or on a temporal track taken over a plurality of change detection images. The invention allows detection of moving objects without requiring a Doppler return from a target. The invention extends to a system adapted to implement the method, and a computer program.

摘要翻译： 提供了一种从诸如合成孔径雷达的合成孔径系统处理基本图像的时间序列的方法，其简化了识别移动物体的任务。 该方法包括以下步骤：首先对多个基本图像进行时间过滤以形成参考图像;其次，用基本图像归一化参考图像，以形成变化检测图像。 变化检测图像具有强调所有移动物体的特性。 可以可选地对变化检测图像执行进一步处理，以基于突出显示的区域的特征或者通过多个变化检测图像拍摄的时间轨迹去除假目标。 本发明允许检测移动物体，而不需要从目标物返回多普勒。 本发明延伸到适于实现该方法的系统和计算机程序。

公开(公告)号：US20100278008A1

公开(公告)日：2010-11-04

申请号：US12233469

申请日：2008-09-18

申请人： Danny F. Ammar

发明人： Danny F. Ammar

IPC分类号： G03B42/06 ,  G01S15/00

CPC分类号： G01S7/521 ,  G01S15/04 ,  G01S15/88 ,  G01S15/8904 ,  G01S15/8993

摘要： An acoustic/ultrasonic detection system can detect, for example, an object concealed under the clothing of a subject. The system includes a signal generator configured to output an electrical signal. An acoustic/ultrasonic transducer can be configured to convert the electrical signal into an acoustic/ultrasonic signal, transmit the acoustic/ultrasonic signal, receive a reflected acoustic/ultrasonic signal from an object in the target area and convert the reflected acoustic/ultrasonic signal into a received electrical signal. The transducer is at least one of an air-coupled transducer and an electro-magnetic acoustic transducer. The system can also include an acoustic/ultrasonic antenna aperture operatively connected to the transducer and configured to focus the transmitted acoustic/ultrasonic signal to create a narrow beam in the target area, a processor configured to extract object information from the received electrical signal and an object indication device to provide an indication of a detected object based on the extracted object information.

摘要翻译： 声学/超声波检测系统可以检测例如隐藏在受试者的衣服下的物体。 该系统包括被配置为输出电信号的信号发生器。 声/超声换能器可以被配置为将电信号转换成声/超声信号，传输声/超声信号，从目标区域中的物体接收反射的声/超声信号，并将反射的声/超声信号转换成 接收到的电信号。 换能器是空气耦合换能器和电磁换能器中的至少一个。 该系统还可以包括可操作地连接到换能器的声/超声天线孔，并且被配置为聚焦所传输的声/超声信号以在目标区域中产生窄波束，处理器被配置为从接收的电信号中提取对象信息， 对象指示装置，基于提取的对象信息提供检测对象的指示。

公开(公告)号：US20090175128A1

公开(公告)日：2009-07-09

申请号：US12300864

申请日：2007-05-15

申请人： Frederic Jean ,  Didier Charlot ,  Fabien Napolitano

发明人： Frederic Jean ,  Didier Charlot ,  Fabien Napolitano

IPC分类号： G01S15/89 ,  G01S7/527

CPC分类号： G01S7/52004 ,  G01S15/8904

摘要： A synthetic antenna sonar system, includes: a sonar provided with emission elements and reception elements, the reception elements including a composite physical antenna having N transducers, the sonar being located on a mobile carrier; an inertial unit arranged on the carrier and suitable for measuring instantaneous position and orientation informations of the carrier; a common clock supplying a temporal signal enabling the synchronization of both the inertial unit and the sonar; elements for determining the instantaneous speed of the carrier, the determined speed feeding the inertial unit to correct the draft thereof; and micronavigation elements enabling an image of the seafloor to be obtained through formation of the synthetic antenna channels from K sonar operation recurrences, considering that the physical antenna movement during the carrier displacement is fully known from the informations measured by the inertial unit.

摘要翻译： 一种合成天线声纳系统，包括：具有发射元件和接收元件的声纳，所述接收元件包括具有N个换能器的复合物理天线，所述声纳位于移动载体上; 惯性单元，布置在载体上，适用于测量载体的瞬时位置和方向信息; 提供能够使惯性单元和声纳同步的时间信号的公共时钟; 用于确定载体的瞬时速度的元件，确定的速度，供给惯性单元以校正其草图; 考虑到载体位移期间的物理天线移动是从惯性单元测量的信息中完全知道的，可以通过从K声纳操作重复形成合成天线通道获得海底图像的微导航元件。

公开(公告)号：US20060146647A1

公开(公告)日：2006-07-06

申请号：US10523003

申请日：2003-07-09

申请人： Didier Billon

发明人： Didier Billon

IPC分类号： G01S15/89

CPC分类号： G01S7/52004 ,  G01S15/8904 ,  Y10S367/905

摘要： The invention relates to a synthetic sonar antenna and more particularly to the self-calibration of such an antenna. It consists in minimizing the number of sensors of the reception antenna by fixing the reduced pitch between the sensors, imposed by the precision of the self-calibration, solely at the two ends of the antenna. According to a variant, the reduced pitch is fixed at just one end of the antenna. It makes it possible to increase the precision of the self-calibration with a smaller number of sensors than in the prior art.

摘要翻译： 本发明涉及一种合成声纳天线，更具体地涉及这种天线的自校准。 它包括通过将传感器之间的减小的音调固定在自校准的精度上，仅在天线的两端来最小化接收天线的传感器的数量。 根据变型，减小的音调固定在天线的仅一端。 使用比现有技术更少数量的传感器可以提高自校准的精度。