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    Underwater detection system for determining carrier frequencies of signals arriving from a wide area
    5.
    发明授权
    Underwater detection system for determining carrier frequencies of signals arriving from a wide area 失效
    用于确定从广域到达的信号的载波频率的水下检测系统

    公开(公告)号：US5561641A

    公开(公告)日：1996-10-01

    申请号：US256989

    申请日：1994-07-29

    申请人： Yasushi Nishimori ,  Itsuo Fukuoka ,  Takashi Yoshioka ,  Tatsuo Hayashi ,  Masato Kawai

    发明人： Yasushi Nishimori ,  Itsuo Fukuoka ,  Takashi Yoshioka ,  Tatsuo Hayashi ,  Masato Kawai

    IPC分类号： G01S3/809 ,  G01S3/80 ,  G01S3/805 ,  G01S7/526 ,  G01S7/539 ,  G01S7/54 ,  G01S7/62 ,  G01S11/14 ,  G01S15/58 ,  G01S15/96 ,  G01S7/52

    CPC分类号： G01S15/96 ,  G01S15/58 ,  G01S3/80 ,  G01S3/805 ,  G01S7/539 ,  G01S7/54 ,  G01S7/6263

    摘要： The present invention is directed to provide an underwater detection system which can determine frequency components contained in echoes arriving from all azimuthal directions at high speed and enhance target discriminating capabilities by presenting such frequency components.The underwater detection system rotates a pair of ultrasonic receiving beams having a fixed phase angle difference, measures phase differences between two signals picked up by both ultrasonic receiving beams, determines carrier frequencies contained in target echoes from the phase differences, derives magnitudes and directions of moving velocities of targets from the carrier frequencies, and displays such target data in different colors. Furthermore, it provides such information as over-the-ground velocities of targets themselves upon compensating target velocity data with ship velocity data.

    摘要翻译： PCT No.PCT / JP93 / 00141 Sec。 371日期1994年7月29日第 102（e）日期1994年7月29日PCT提交1993年2月4日PCT公布。 第WO93 / 16399号公报 日期：1993年8月19日本发明旨在提供一种水下检测系统，其能够以高速度确定从所有方位方向到达的回波中所含的频率分量，并通过呈现这种频率分量来增强目标识别能力。 水下检测系统旋转一对具有固定相位角差的超声波接收束，测量由两个超声波接收波束拾取的两个信号之间的相位差，从相位差确定包含在目标回波中的载波频率，导出移动的幅度和方向 来自载波频率的目标速度，并以不同的颜色显示目标数据。 此外，它通过船舶速度数据补偿目标速度数据，提供目标本身的地面速度等信息。

    Device for and a method of determining the angle of incidence of a received signal and a scanning sonar
    6.
    发明授权
    Device for and a method of determining the angle of incidence of a received signal and a scanning sonar 有权
    用于确定接收信号和扫描声纳的入射角的装置和方法

    公开(公告)号：US06192006B1

    公开(公告)日：2001-02-20

    申请号：US09239146

    申请日：1999-01-28

    申请人： Hiroshi Iino ,  Itsuo Fukuoka ,  Tatsuo Hayashi ,  Yasuo Ito

    发明人： Hiroshi Iino ,  Itsuo Fukuoka ,  Tatsuo Hayashi ,  Yasuo Ito

    IPC分类号： G01S380

    CPC分类号： G10K11/346 ,  B06B1/0633 ,  G01S7/521 ,  G01S7/527 ,  G01S15/42

    摘要： A transducer is constructed of a plurality of transducer elements which are arranged in multiple layers and columns forming as a whole a generally cylindrical shape. A scanning sonar employing the transducer thus constructed can be switched between horizontal scan mode in which a vertically focused beam having a narrow horizontal beam angle (high horizontal directivity) is steered around the transducer using all the transducer elements and vertical scan mode in which a horizontally focused beam having a narrow vertical beam angle (high vertical directivity) is steered in a vertical plane directed in a specified scan azimuth to find out the angle of incidence of a received signal. The horizontally focused beam is formed by using the transducer elements of specific columns centered on the specified scan azimuth. A vertical scan signal obtained in the vertical scan mode is multiplied by a chirp signal. A correlator provided in a succeeding stage converts the amount of Doppler shift into time data and determines the angle of incidence of the received signal.

    摘要翻译： 传感器由多个换能器元件构成，多个传感器元件以多层和多列形式整体形成为大致圆柱形的形状。 使用如此构造的换能器的扫描声纳可以在水平扫描模式之间切换，在水平扫描模式中，使用所有换能器元件和垂直扫描模式，使用所有换能器元件和垂直扫描模式将具有窄水平射束角（高水平方向性）的垂直聚焦束转向绕传感器 具有窄垂直光束角（高垂直方向性）的聚焦光束在指定的扫描方位角的垂直平面中转向，以找出接收信号的入射角。 通过使用以指定扫描方位为中心的特定列的换能器元件形成水平聚焦光束。 以垂直扫描模式获得的垂直扫描信号乘以啁啾信号。 随后提供的相关器将多普勒频移量转换为时间数据并确定接收信号的入射角。

    Ultrasonic underwater detector with voltage and envelope control
    7.
    发明授权
    Ultrasonic underwater detector with voltage and envelope control 有权
    超声波水下探测器具有电压和信封控制

    公开(公告)号：US08194499B2

    公开(公告)日：2012-06-05

    申请号：US12363377

    申请日：2009-01-30

    申请人： Masaru Nishida ,  Itsuo Fukuoka ,  Yasunobu Asada ,  Satoshi Misonoo ,  Mitsuhiro Inouchi ,  Shinji Ogawa ,  Satoru Arakane

    发明人： Masaru Nishida ,  Itsuo Fukuoka ,  Yasunobu Asada ,  Satoshi Misonoo ,  Mitsuhiro Inouchi ,  Shinji Ogawa ,  Satoru Arakane

    IPC分类号： G01S15/00

    CPC分类号： G01S15/96 ,  G01S7/524 ,  G01S15/104

    摘要： The present disclosure provides an underwater detector including a power source for applying a predetermined voltage, a voltage control circuit for controlling the voltage based on a control signal, a gate signal generating module for outputting a gate signal, a switching circuit for outputting a reference signal based on the voltage controlled by the voltage control circuit and the gate signal outputted from the gate signal generating module, and a transducer for transmitting an ultrasonic signal underwater, an envelope of which being controlled based on a waveform of the control signal by being applied with the reference signal.

    摘要翻译： 本公开提供了一种水下检测器，其包括用于施加预定电压的电源，用于基于控制信号控制电压的电压控制电路，用于输出门信号的门信号产生模块，用于输出参考信号的切换电路 基于由电压控制电路控制的电压和从门信号发生模块输出的门信号，以及用于在水下发送超声波信号的换能器，其包络线通过施加控制信号的波形而被控制 参考信号。

    UNDERWATER DETECTOR
    8.
    发明申请
    UNDERWATER DETECTOR 有权
    水下探测器

    公开(公告)号：US20090201766A1

    公开(公告)日：2009-08-13

    申请号：US12363377

    申请日：2009-01-30

    申请人： Masaru NISHIDA ,  Itsuo Fukuoka ,  Yasunobu Asada ,  Satoshi Misonoo ,  Mitsuhiro Inouchi ,  Shinji Ogawa ,  Satoru Arakane

    发明人： Masaru NISHIDA ,  Itsuo Fukuoka ,  Yasunobu Asada ,  Satoshi Misonoo ,  Mitsuhiro Inouchi ,  Shinji Ogawa ,  Satoru Arakane

    IPC分类号： H04B11/00

    CPC分类号： G01S15/96 ,  G01S7/524 ,  G01S15/104

    摘要： The present disclosure provides an underwater detector including a power source for applying a predetermined voltage, a voltage control circuit for controlling the voltage based on a control signal, a gate signal generating module for outputting a gate signal, a switching circuit for outputting a reference signal based on the voltage controlled by the voltage control circuit and the gate signal outputted from the gate signal generating module, and a transducer for transmitting an ultrasonic signal underwater, an envelope of which being controlled based on a waveform of the control signal by being applied with the reference signal.

    摘要翻译： 本公开提供了一种水下检测器，其包括用于施加预定电压的电源，用于基于控制信号控制电压的电压控制电路，用于输出门信号的门信号产生模块，用于输出参考信号的切换电路 基于由电压控制电路控制的电压和从门信号发生模块输出的门信号，以及用于在水下发送超声波信号的换能器，其包络线通过施加控制信号的波形而被控制 参考信号。

    System for detecting surrounding environmental conditions using a multiple number of incoming signals
    9.
    发明授权
    System for detecting surrounding environmental conditions using a multiple number of incoming signals 失效
    使用多个输入信号检测周围环境条件的系统

    公开(公告)号：US5001678A

    公开(公告)日：1991-03-19

    申请号：US366513

    申请日：1989-06-15

    申请人： Itsuo Fukuoka ,  Hiroshi Nagano

    发明人： Itsuo Fukuoka ,  Hiroshi Nagano

    IPC分类号： G01S15/89 ,  G01S3/802 ,  G01S7/523

    CPC分类号： G01S3/8022 ,  Y10S367/903

    摘要： A detection system forms a plurality of reception beams successively in angular directions by receiving incoming signals from various directions in a manner that the Doppler effect is produced to vary the carrier frequency of the incoming signals. The detection system displays underwater conditions on an indicator. To determine the underwater conditions, the detection system uses a plurality of ultrasonic transducers for receiving incoming signals, a plurality of preamplifiers for amplifying the reception signals produced by the ultrasonic transducers. A first coupling device which connects at least two of the ultrasonic transducers to a single preamplifier, and a matched filter for pulse-compressing reception signals produced by the ultrasonic transducers. A second coupling device successively couples the output terminals of the preamplifiers to an input terminal of the matched filter. The indicator displays output signals from the matched filter. The use of the first coupling device reduces the number of the preamplifiers.

    摘要翻译： 检测系统通过以产生多普勒效应以改变输入信号的载波频率的方式从各个方向接收输入信号而在角度方向上连续地形成多个接收波束。 检测系统在指示器上显示水下条件。 为了确定水下条件，检测系统使用多个超声换能器来接收输入信号，多个前置放大器用于放大由超声换能器产生的接收信号。 将至少两个超声换能器连接到单个前置放大器的第一耦合装置和用于脉冲压缩由超声换能器产生的接收信号的匹配滤波器。 第二耦合装置将前置放大器的输出端子连续地耦合到匹配滤波器的输入端子。 指示器显示匹配滤波器的输出信号。 使用第一耦合装置减少前置放大器的数量。