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1.发明授权Normalization method for eliminating false detections in side scan sonar images 失效用于消除侧扫声纳图像中的错误检测的归一化方法
公开(公告)号：US5493619A
公开(公告)日：1996-02-20
申请号：US209095
申请日：1994-03-11
申请人： Paul H. Haley , John E. Gilmour
发明人： Paul H. Haley , John E. Gilmour
CPC分类号： G01S15/8902 , G01S7/539
摘要： A method for eliminating false detections at the water column boundary in side scan sonar images is provided. Each image is filtered by computing the median greylevel value of a pixel and its four adjacent pixels to produce a median image. The median image is filtered with a first linear filter to produce an edge image. The edge image is then filtered with a second linear filter to produce an edge-smoothed image. The edge of the image is detected by searching each row of the edge-smoothed image for the maximum greylevel. A transition region is defined between the detected edge and a preselected right boundary and the average greylevels over the rows and columns in this transition region is computed. The sonar image is then normalized by computing the image mean grayness level of each pixel in the image.
摘要翻译： 提供了一种在侧扫声纳图像中消除水柱边界错误检测的方法。 通过计算像素及其四个相邻像素的中值灰度值来过滤每个图像以产生中值图像。 中值图像用第一线性滤波器滤波以产生边缘图像。 然后用第二线性滤波器过滤边缘图像以产生边缘平滑图像。 通过搜索边缘平滑图像的每一行来检测图像的边缘以获得最大的灰度。 在检测到的边缘和预选的右边界之间定义过渡区域，并计算该过渡区域中行和列的平均灰度。 然后通过计算图像中每个像素的图像平均灰度级来对声纳图像进行归一化。
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公开(公告)号：US5043951A
公开(公告)日：1991-08-27
申请号：US561549
申请日：1990-08-01
申请人： John E. Gilmour , Bruce C. Mitchell
发明人： John E. Gilmour , Bruce C. Mitchell
IPC分类号： G01S7/52
CPC分类号： G01S7/52003 , Y10S367/905
摘要： A square law detection circuit for energy signals such as sonar signals wherein the signal processing eliminates the side lobe detection of false targets by eliminating the side lobes themselves without significant energy degradation of the main lobe of the beam pattern associated with the sonar equipment.
摘要翻译： 用于诸如声纳信号的能量信号的平方律检测电路，其中信号处理通过消除旁瓣本身而消除了伪目标的旁瓣检测，而没有与声纳设备相关联的波束图案的主瓣的显着能量劣化。
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公开(公告)号：US4987563A
公开(公告)日：1991-01-22
申请号：US476209
申请日：1990-02-07
申请人： John E. Gilmour
发明人： John E. Gilmour
CPC分类号： G10K11/346 , G01S15/8904
摘要： A sonar system including an elongated transducer having a fully populated or non-fully populated array of transducer elements. During course of travel of the carrier on which the transducer is mounted, successive acoustic transmissions take place whereupon the transducer elements provide output signals in response to the reflected energy. At least one synthetic aperture beam is formed by combining the element output signals from at least two successive transmissions wherein there is a predetermined gap between the array at a location at which a first transmission takes a location at which a subsequent transmission takes place.
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公开(公告)号：US07239606B2
公开(公告)日：2007-07-03
申请号：US09924905
申请日：2001-08-08
申请人： John E. Gilmour , Raymond A. Young , James L. Klueber , Gerald M. Masson , Giorgio L. Coraluppi
发明人： John E. Gilmour , Raymond A. Young , James L. Klueber , Gerald M. Masson , Giorgio L. Coraluppi
IPC分类号： G31R31/08
CPC分类号： G06F15/8023
摘要： A network over which a medium is transferred. The network includes S core rings. Each core ring can be modeled as a set of nodes interconnected by links, where S is greater than or equal to 4 and is an integer, each said core ring having at least N nodes, where N is greater than or equal to 4 and is an integer. Each node/link is configurable in terms of directing the medium from a given source toward a given destination, and where each of the core rings is directly connected by means of k spanning links, where k is greater than or equal to 2, so as to comprise a spanning ring to at least a second and a third of the other core rings. The combinations of core rings spanned by each core ring is such that there is a path comprised of links and nodes from each node on any core ring to any other node on any other core ring. A method for transferring a medium.
摘要翻译： 传输介质的网络。 网络包括S核心环。 每个核心环可以被建模为通过链路互连的一组节点，其中S大于或等于4，并且是整数，每个核心环具有至少N个节点，其中N大于或等于4，并且是 一个整数。 每个节点/链路在将介质从给定源指向给定目的地方面是可配置的，并且其中每个核心环通过k跨越链路直接连接，其中k大于或等于2，因此 以包括到至少第二和第三其它芯环的跨越环。 由每个核心环跨越的核心环的组合使得存在由任何核心环上的每个节点到任何其他核心环上的任何其他节点的链接和节点组成的路径。 一种传送介质的方法。
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公开(公告)号：US5392257A
公开(公告)日：1995-02-21
申请号：US109891
申请日：1993-08-23
申请人： John E. Gilmour
发明人： John E. Gilmour
CPC分类号： G01S7/529 , Y10S367/90
摘要： Individual elements of a sonar receiver transducer provide output signals in response to the receipt of acoustic energy and signals are processed to form one or more receiver beams for display. Each element output is provided to a preamplifier to which is applied a time varied gain function. The output signal of at least one of the preamplifiers is additionally provided to an adaptive time varied gain circuit which generates an error signal for correction of the time varied gain function applied to the preamplifiers.
摘要翻译： 声纳接收器换能器的单个元件响应于声能的接收而提供输出信号，并且处理信号以形成用于显示的一个或多个接收器波束。 每个元件输出被提供给应用时间变化增益函数的前置放大器。 至少一个前置放大器的输出信号被附加地提供给自适应时间变化增益电路，其产生用于校正应用于前置放大器的时间变化增益函数的误差信号。
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公开(公告)号：US5022015A
公开(公告)日：1991-06-04
申请号：US532824
申请日：1990-06-04
申请人： John E. Gilmour
发明人： John E. Gilmour
摘要： Sonar apapratus which forms concentric hollow conical receiver beams having a common cone axis which is at a predetermined angle relative to the direction of travel of the apparatus as opposed to being coincident with it. A target indication received by a conical beam defines a circle upon which the target might lie. Multiple transmissions and detection of the target in other beams result in intersecting the circles to thereby limit the location of the target to one of two possible points, and one of which may be disregarded depending upon the operational mission.
摘要翻译： 声纳apapratus形成同心的中空锥形接收器梁，其具有相对于与设备的行进方向相对于设备的行进方向处于预定角度的公共锥形轴线。 由锥形束接收的目标指示定义了目标可能在其上的圆圈。 其他波束中的目标的多次传输和检测导致与圆圈交叉，从而将目标的位置限制在两个可能的点中的一个，其中之一可以根据操作任务被忽略。
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公开(公告)号：US12034849B1
公开(公告)日：2024-07-09
申请号：US17902388
申请日：2022-09-02
CPC分类号： H04L9/302 , G06F17/11 , H04L9/3093
摘要： A method for decoding an encrypted electromagnetic signal W encoded by a first computer with public key N_0=r×s, where N_0, r and s are integers. There is the step of obtaining the electromagnetic signal W from a telecommunications network, or a data network or an Internet or a first non-transient memory. There is the step of storing the electromagnetic signal W in a second non-transient memory. There is the step of decoding with a second computer in communication with the second non-transient memory the electromagnetic signal W in the second non-transient memory by factoring the public key N_0 in at most a time O(log^6 N_0). A non-transitory readable storage medium which includes a computer program stored on the storage medium for decoding an encrypted electromagnetic signal W.
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8.发明授权
公开(公告)号：US5493539A
公开(公告)日：1996-02-20
申请号：US209097
申请日：1994-03-11
申请人： Paul H. Haley , John E. Gilmour
发明人： Paul H. Haley , John E. Gilmour
CPC分类号： G01S7/539 , G01S15/8902
摘要： An automatic method for finding mines in side scan sonar images using a two-stage detection/discrimination process is provided. This method improves the discrimination process by specialized processing of regions of interest found in the detection process to increase the probability of correctly identifying highlight and shadow regions associated with mine images. Features specifically selected for their ability to discriminate mines are then extracted from these areas for use in the Bayesian discriminator.
摘要翻译： 提供了一种使用两级检测/辨别过程在侧扫声纳图像中发现雷达的自动方法。 该方法通过在检测过程中发现的感兴趣区域的专门处理来改善辨别过程，以增加正确识别与雷射图像相关联的亮点和阴影区域的概率。 然后从这些区域中提取特定于其辨别矿井能力的特征，以供在贝叶斯鉴别器中使用。
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公开(公告)号：US5436872A
公开(公告)日：1995-07-25
申请号：US266395
申请日：1994-06-27
申请人： John E. Gilmour , Thomas J. Hartka
发明人： John E. Gilmour , Thomas J. Hartka
CPC分类号： G01S7/52003 , G10K11/341
摘要： A time delay-phase shift combination beamformer for applications where the required time delays for time delaying the received signal to achieve coherency exceed the reciprocal of the incoming signal's bandwidth, and having a time delay stage for coarse beamforming at a particular range and first beam direction and a phase shift stage for fine beam steering in a second direction at the particular range.
摘要翻译： 用于时间延迟接收信号以实现相干性的所需时间延迟超过输入信号带宽的倒数的应用的时间延迟相移组合波束形成器，并且具有在特定范围和第一波束方向上的粗波束成形的时间延迟级 以及用于在特定范围内的第二方向上的精细光束转向的相移级。
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