SYSTEM AND METHOD FOR HIGH SPEED SATELLITE-BASED FREE-SPACE LASER COMMUNICATIONS USING AUTOMATIC GAIN CONTROL
    1.
    发明申请
    SYSTEM AND METHOD FOR HIGH SPEED SATELLITE-BASED FREE-SPACE LASER COMMUNICATIONS USING AUTOMATIC GAIN CONTROL 审中-公开
    基于自动增益控制的高速卫星自由空间激光通信系统和方法

    公开(公告)号:WO2017205652A1

    公开(公告)日:2017-11-30

    申请号:PCT/US2017/034523

    申请日:2017-05-25

    Inventor: WISWELL, Eric

    Abstract: A high speed satellite-based laser communications system and method for communications between a satellite-based transmitter system and a ground-based receiver over a free space optical link. The satellite-based transmitter system includes an encoder to encode data, a polarization modulator to linearly polarize the encoded data, one or at least two transmitters to transmit the laser beam, and a quarter-wave optical wave plate to circularly polarize the signal to be transmitted. The ground-based receiver includes an automatic gain control to apply AGC to the received data before the polarizations are reversed and the data is decoded. The system enables an increased data throughput and reduces or eliminates the effects of signal fading.

    Abstract translation: 基于卫星的高速激光通信系统和方法,用于通过自由空间光链路在基于卫星的发射机系统和地面接收机之间进行通信。 基于卫星的发射机系统包括用于编码数据的编码器,用于线性极化编码数据的偏振调制器,用于发射激光束的一个或至少两个发射器,以及用于将信号圆偏振以形成波长的四分之一波长光学波片 传输。 地面接收器包括一个自动增益控制,在极化反转并解码数据之前,将AGC应用于接收的数据。 该系统可提高数据吞吐量,并减少或消除信号衰落的影响。

    METHODS AND SYSTEMS FOR FIBER OPTIC COMMUNICATION
    3.
    发明申请
    METHODS AND SYSTEMS FOR FIBER OPTIC COMMUNICATION 审中-公开
    用于光纤通信的方法和系统

    公开(公告)号:WO2018075239A1

    公开(公告)日:2018-04-26

    申请号:PCT/US2017/055096

    申请日:2017-10-04

    Applicant: PANDUIT CORP.

    Abstract: The present invention relates in general to communication systems, and more specifically towards methods, systems, and devices that help improve transmission rates and spectral efficiency of intensity modulated (IM) or power modulated channels utilizing multi-level pulse amplitude modulation PAM-M. In an embodiment, the present invention used an iterative algorithm to open the eyes of an eye diagram in a relatively short number of steps. The algorithm, which may not require previous characterization of the channel, utilizes pseudo-random sequences, such as PSBS15 or PRQS10, and adaptive non-linear equalizers to optimize the pre-distortion taps.

    Abstract translation: 本发明一般涉及通信系统,并且更具体地涉及有助于利用多电平来改善强度调制(IM)或功率调制信道的传输速率和频谱效率的方法,系统和设备 脉冲幅度调制PAM-M。 在一个实施例中,本发明使用迭代算法以相对短的步数打开眼图的眼睛。 该算法可能不需要信道的先前表征,利用伪随机序列(例如PSBS15或PRQS10)和自适应非线性均衡器来优化预失真抽头。

    METHOD, TRANSMITTER AND SYSTEM FOR TRANSMITTING DATA OVER OPTICAL SUPER-CHANNEL
    4.
    发明申请
    METHOD, TRANSMITTER AND SYSTEM FOR TRANSMITTING DATA OVER OPTICAL SUPER-CHANNEL 审中-公开
    用于发送光信道上的数据的方法,发射机和系统

    公开(公告)号:WO2015190328A1

    公开(公告)日:2015-12-17

    申请号:PCT/JP2015/065707

    申请日:2015-05-26

    Abstract: A method for transmitting data over an optical super-channel partitions the data unequally into a set of data streams for transmission over the set of sub-channels of the super-channel, such that a size of a first data stream for transmission over a first sub-channel is different than a size of a second data stream of the data for transmission over a second sub-channel. The method encodes each data stream of the data with an error correction code (ECC) having different ECC rates to produce a set of encoded data streams and transmits concurrently the set of encoded data streams over the set of sub-channels of the super-channel. Accordingly, the method uses an adaptive ECC for optical super-channels, such that a first ECC rate for encoding the first data stream is different than a second ECC rate for encoding the second data stream.

    Abstract translation: 一种用于通过光学超级信道发射数据的方法将该数据不等地划分成一组数据流,用于在该超级信道的子信道集上传输,使得第一数据流的大小在第一 子信道与用于在第二子信道上传输的数据的第二数据流的大小不同。 该方法利用具有不同ECC速率的纠错码(ECC)来对数据的每个数据流进行编码,以产生一组编码数据流,并且通过超级信道的子信道集合同时发送编码数据流集合 。 因此,该方法使用用于光学超级信道的自适应ECC,使得用于对第一数据流进行编码的第一ECC速率不同于用于对第二数据流进行编码的第二ECC速率。

    TELECOMMUNICATION SYSTEMS
    7.
    发明申请
    TELECOMMUNICATION SYSTEMS 审中-公开
    电信系统

    公开(公告)号:WO99031927A1

    公开(公告)日:1999-06-24

    申请号:PCT/IE1998/000103

    申请日:1998-12-15

    CPC classification number: H04Q11/0478 H04J2203/0076 H04L2012/5652

    Abstract: A telecommunication system (1) provides bi-directional communication between TDM signals on one side and ATM signals on the other. An ATM aggregate (10) receives and transmits ATM signals, and a TDM interface (2) receives and transmits TDM signals. A format converter has an ATM bus (9) and a TDM bus (4) connected to their respective interfaces. Service-specific adapters (5-8) are connected between the buses.

    Abstract translation: 电信系统(1)在一侧的TDM信号和另一侧的ATM信号之间提供双向通信。 ATM聚合(10)接收并发送ATM信号,TDM接口(2)接收和发送TDM信号。 格式转换器具有连接到它们各自接口的ATM总线(9)和TDM总线(4)。 总线之间连接服务专用适配器(5-8)。

    PROCESS FOR CONVERTING DIGITAL DATA FLOWS WITH ATM CELL STRUCTURE
    8.
    发明申请
    PROCESS FOR CONVERTING DIGITAL DATA FLOWS WITH ATM CELL STRUCTURE 审中-公开
    程序将数字数据转换与ATM细胞结构STREAMS

    公开(公告)号:WO1994024787A1

    公开(公告)日:1994-10-27

    申请号:PCT/DE1994000427

    申请日:1994-04-15

    Abstract: A first data flow (DS1) for a first data transmission system (DÜ1) with a first data rate contains ATM data cells (2, 3, 4) and structure data (10, 11, 12) allocated to a section (13) consisting of several ATM cells and divided and spaced out according to predetermined instructions. The data flow (DS1) is converted, while retaining its ATM data cell format, into a second data flow (DS2) containing only ATM data cells for a second data transmission system (DÜ2) with a second, higher data rate. Here, the structure data (10, 11, 12) are separated from the first data flow and entered into a marked structure cell (64) with an ATM data cell format for the section concerned. The structure cell (64) is inserted into a second data flow (DS2) so as partly to fill an unoccupied section resulting from the differing data rates.

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