Systems and methods for underwater optical communication
    71.
    发明授权
    Systems and methods for underwater optical communication 有权
    水下光通信系统与方法

    公开(公告)号:US07953326B2

    公开(公告)日:2011-05-31

    申请号:US11348726

    申请日:2006-02-06

    CPC classification number: H04B13/02 Y10T29/49826

    Abstract: The systems and methods of the invention provide for improved underwater communication systems. In particular, the systems and methods of the invention provide for improved underwater optical modems including optical transmitters and optical receivers that allow omni-directional transmission and reception of optical signals underwater and having a range of about 100 m and allowing data rates greater than 1 Mbit/s. The systems and methods of the invention also provide for underwater communication networks having a plurality of optical modems communicating with each other.

    Abstract translation: 本发明的系统和方法提供了改进的水下通信系统。 特别地,本发明的系统和方法提供了改进的水下光调制解调器,包括光发射机和光接收机,其允许水下全光传输和接收光信号,并具有大约100m的范围并允许数据速率大于1Mbit / s。 本发明的系统和方法还提供了具有彼此通信的多个光调制解调器的水下通信网络。

    Apparatus, Systems and Methods Including Nonbinary Low Density Parity Check Coding For Enhanced Multicarrier Underwater Acoustic Communications
    73.
    发明申请
    Apparatus, Systems and Methods Including Nonbinary Low Density Parity Check Coding For Enhanced Multicarrier Underwater Acoustic Communications 有权
    包括用于增强多载波水下声学通信的非二进制低密度奇偶校验码的装置,系统和方法

    公开(公告)号:US20110029845A1

    公开(公告)日:2011-02-03

    申请号:US12731669

    申请日:2010-03-25

    Abstract: Advantageous underwater acoustic (UWA) apparatus, systems and methods are provided according to the present disclosure. The apparatus, systems and methods employ nonbinary low density parity check (LDPC) codes that achieve excellent performance and match well with the underlying modulation. The nonbinary LDPC codes of the proposed apparatus, systems and methods are formed, at least in part, from a generator matrix that has a high density to reduce the peak-to-average-power ratio (PAPR) with minimal overhead. The disclosed apparatus, systems and methods employ nonbinary regular LDPC cycle codes if the constellation is large and nonbinary irregular LDPC codes if the constellation is small or moderate. The nonbinary irregular and regular LDPC codes enable: i) parallel processing in linear-time encoding; ii) parallel processing in sequential belief propagation decoding; and iii) considerable resource reduction on the code storage for encoding and decoding.

    Abstract translation: 根据本公开提供了有利的水下声学(UWA)设备,系统和方法。 装置,系统和方法采用非二进制低密度奇偶校验(LDPC)码,其实现优异的性能并且与底层调制良好匹配。 所提出的装置,系统和方法的非二进制LDPC码至少部分地由具有高密度的发电机矩阵形成,以最小的开销来降低峰值与平均功率比(PAPR)。 所公开的装置,系统和方法采用非二进制规则LDPC循环码,如果星座大,并且如果星座小或适中,则采用非二进制不规则LDPC码。 非二进制不规则和常规LDPC码使得:i)线性时间编码中的并行处理; ii)顺序置信传播解码中的并行处理; 以及iii)用于编码和解码的代码存储器的相当多的资源减少。

    Wireless underwater hull inspection system
    74.
    发明申请
    Wireless underwater hull inspection system 失效
    无线水下船体检测系统

    公开(公告)号:US20100238050A1

    公开(公告)日:2010-09-23

    申请号:US12599319

    申请日:2008-06-16

    CPC classification number: H04B13/02

    Abstract: An underwater inspection system comprising an underwater mobile inspection station (52) having an electromagnetic antenna (53), the mobile station (52) being adapted to capture inspection data and use the electromagnetic antenna (53) to send information relating to the inspection data to a underwater electromagnetic receiver that has a fixed electromagnetic antenna (55).

    Abstract translation: 一种水下检查系统,包括具有电磁天线(53)的水下移动检查站(52),所述移动站(52)适于捕获检查数据并使用所述电磁天线(53)发送与所述检查数据有关的信息, 具有固定电磁天线(55)的水下电磁接收器。

    Buoy supported underwater radio antenna
    75.
    发明申请
    Buoy supported underwater radio antenna 审中-公开
    浮标支持水下无线电天线

    公开(公告)号:US20100227551A1

    公开(公告)日:2010-09-09

    申请号:US12752856

    申请日:2010-04-01

    CPC classification number: H04B13/02

    Abstract: The present invention provides a buoy supported antenna for underwater radio communications. The antenna of the present invention comprises an elongate section submerged in water and a feed point for feeding electrical signals to the antenna located on the elongate section, the elongate section is attached to an underwater object at a first end thereof, and during deployment is suspended by a buoy at a second end thereof so that the elongate section is substantially self supporting and vertical in orientation. At least a first portion of the elongate section comprises a flexible wire having an electrically conductive core, which is electrically insulated on an outer surface thereof. During operation the flexible wire radiates electromagnetic signals through the water.

    Abstract translation: 本发明提供一种用于水下无线电通信的浮标支持天线。 本发明的天线包括浸没在水中的细长部分和用于将电信号馈送到位于细长部分上的天线的馈电点,细长部分在其第一端附接到水下物体,并且在展开期间暂停 通过其第二端处的浮标,使得细长部分基本上自支撑并且在取向上是垂直的。 细长部分的至少第一部分包括具有导电芯的柔性线,该导电芯在其外表面上是电绝缘的。 在操作过程中,柔性线通过水辐射电磁信号。

    Underwater communications system with adaptable carrier frequency
    76.
    发明申请
    Underwater communications system with adaptable carrier frequency 有权
    水下通信系统具有适应性载波频率

    公开(公告)号:US20100135121A1

    公开(公告)日:2010-06-03

    申请号:US12699113

    申请日:2010-02-03

    CPC classification number: H04B13/02 Y10S367/901 Y10S367/904 Y10S367/91

    Abstract: An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms.

    Abstract translation: 提供一种将电磁和/或磁信号传输到远程接收器的水下通信系统。 发射机包括数据输入。 数字数据压缩器压缩要发送的数据。 调制器将压缩数据调制到载波信号上。 电绝缘的磁耦合天线传输压缩的调制信号。 具有用于接收压缩的调制信号的电绝缘磁耦合天线的接收器。 提供解调器用于解调信号以显示压缩数据。 解压缩器解压缩数据。 提供适当的人机界面以将传输的数据呈现为文本/音频/可视形式。 类似地,发射系统包括适当的音频/视频/文本输入机制。

    Underwater navigation
    77.
    发明申请
    Underwater navigation 失效
    水下导航

    公开(公告)号:US20100110835A1

    公开(公告)日:2010-05-06

    申请号:US12686506

    申请日:2010-01-13

    CPC classification number: H04B13/02 Y10S367/901 Y10S367/904 Y10S367/91

    Abstract: An underwater navigation system comprising a transmitter having an electrically insulted magnetic coupled antenna for transmitting an electromagnetic and/or magneto-inductive signal, a receiver having an electrically insulated magnetic coupled antenna for receiving an electromagnetic and/or magneto-inductive signal from the transmitter, and determining means for determining the position of the receiver relative to the transmitter using the received electromagnetic and/or magneto-inductive signal.

    Abstract translation: 一种水下导航系统,包括具有用于传输电磁和/或磁感应信号的电绝缘磁耦合天线的发射机,具有用于从所述发射机接收电磁和/或磁感应信号的电绝缘磁耦合天线的接收机, 以及确定装置,用于使用所接收的电磁和/或磁感应信号来确定接收机相对于发射机的位置。

    Underwater remote sensing
    78.
    发明申请
    Underwater remote sensing 失效
    水下遥感

    公开(公告)号:US20100109933A1

    公开(公告)日:2010-05-06

    申请号:US12686510

    申请日:2010-01-13

    CPC classification number: H04B13/02 Y10S367/901 Y10S367/904 Y10S367/91

    Abstract: An underwater remote sensing system comprising a transmitter for transmitting an electromagnetic signal, a receiver for receiving an electromagnetic signal reflected from an object and determining means for determining the location of the object, wherein at least one of the transmitter and receiver is underwater. The determining means may be operable to determine the location of the object using signals received at three or more receiver positions. To do this, three or more receiver antennas may be provided. Alternatively, a single receiver antenna may be provided and moved between three or more different measurement locations.

    Abstract translation: 一种水下遥感系统,包括用于发送电磁信号的发射器,用于接收从物体反射的电磁信号的接收器和用于确定物体位置的确定装置,其中发射器和接收器中的至少一个是水下的。 确定装置可以用于使用在三个或更多个接收器位置处接收的信号来确定对象的位置。 为此,可以提供三个或更多个接收机天线。 或者,可以在三个或更多个不同的测量位置之间提供并移动单个接收机天线。

    DELIVERY SYSTEMS FOR PRESSURE PROTECTING AND DELIVERING A SUBMERGED PAYLOAD AND METHODS FOR USING THE SAME
    79.
    发明申请
    DELIVERY SYSTEMS FOR PRESSURE PROTECTING AND DELIVERING A SUBMERGED PAYLOAD AND METHODS FOR USING THE SAME 有权
    用于压力保护和输送下达的载荷的输送系统及其使用方法

    公开(公告)号:US20100107959A1

    公开(公告)日:2010-05-06

    申请号:US12511676

    申请日:2009-07-29

    Abstract: A payload delivery unit for protecting and delivering a payload submerged in a submersion medium comprises a container including a pressure resistant shell and a resilient seal device. The shell defines a containment chamber and includes first and second shell members having opposed first and second sealing faces, respectively. The seal device engages and is interposed between the first and second sealing faces. The container is configured and constructed such that: when the submersion medium applies an exterior pressure to the first and second shell members such that a shell pressure differential, defined as the exterior pressure less an interior pressure of the containment chamber, exceeds a prescribed pressure, the first and second shell members compressively load and deform the seal device to effect a seal between the first and second shell members that prevents ingress of the submersion medium into the containment chamber; and when the shell pressure differential is less than the prescribed pressure, the seal device elastically rebounds to separate the first and second shell members to permit ingress of the submersion medium into the containment chamber.

    Abstract translation: 用于保护和传送浸没在浸没介质中的有效载荷的有效载荷传送单元包括容器,其包括耐压外壳和弹性密封装置。 壳体限定容纳室,并且包括分别具有相对的第一和第二密封面的第一和第二壳体构件。 密封装置接合并插入在第一和第二密封面之间。 容器被构造和构造成使得:当浸没介质对第一和第二壳构件施加外部压力使得限定为外部压力小于容纳室的内部压力的外壳压力差超过规定压力时, 所述第一和第二壳构件对所述密封装置进行压缩加载和变形,以实现所述第一和第二壳构件之间的密封,所述第一和第二壳构件防止浸没介质进入所述容纳室; 并且当壳体压力差小于规定压力时,密封装置弹性回弹以使第一和第二壳体部件分离,以允许浸没介质进入容纳室。

    System and method for secure communication of collected amphibious data
    80.
    发明授权
    System and method for secure communication of collected amphibious data 有权
    收集的两栖数据的安全通信系统和方法

    公开(公告)号:US07613225B1

    公开(公告)日:2009-11-03

    申请号:US11352002

    申请日:2006-02-10

    CPC classification number: H04K3/25 H04B1/71635 H04B13/02 H04K3/827 H04L9/00

    Abstract: A system for secure communication of collected data is provided. The system comprises a data dissemination subsystem, the data dissemination subsystem operable to store and disseminate collected data. The system also comprises a transmitter subsystem coupled to said data dissemination subsystem, said transmitter subsystem operable to encrypt said disseminated collected data, encode said encrypted data to form a plurality of ultra wideband signals, spectrum spread said plurality of ultra wideband signals with a direct sequence spectrum spreading code, and transmit said spread plurality of ultra wideband signals.

    Abstract translation: 提供了一种用于收集数据的安全通信的系统。 该系统包括数据传播子系统,数据传播子系统可操作以存储和传播收集的数据。 该系统还包括耦合到所述数据传播子系统的发射机子系统,所述发射机子系统可操作以加密所述传播收集的数据,对所述加密数据进行编码以形成多个超宽带信号,以直接序列扩展所述多个超宽带信号 频谱扩展码,并发送所述扩展的多个超宽带信号。

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