SAMPLE GENERATION METHOD AND SYSTEM FOR DIGITAL SIMULATION PROCESSES
    1.
    发明申请
    SAMPLE GENERATION METHOD AND SYSTEM FOR DIGITAL SIMULATION PROCESSES 有权
    用于数字模拟过程的样本生成方法和系统

    公开(公告)号:US20090182796A1

    公开(公告)日:2009-07-16

    申请号:US12275498

    申请日:2008-11-21

    IPC分类号: G06F7/58

    CPC分类号: G06F1/02 G06F7/58 G06F2101/14

    摘要: A method for generating a set of random numbers with statistics represented by a cumulative density function includes generating a set of uniformly spaced samples between an upper limit and a lower limit. Each of the uniformly spaced samples are then mapped to a corresponding value on a cumulative density function curve. The set of uniformly spaced samples are then scrambled to randomize the samples. Companding may also be incorporated in the sample generation process.

    摘要翻译: 用累积密度函数表示的统计量生成一组随机数的方法包括在上限和下限之间生成一组均匀间隔的样本。 然后将每个均匀间隔的样本映射到累积密度函数曲线上的相应值。 然后对该组均匀间隔的样本进行加扰以使样本随机化。 压实也可以并入样品生成过程中。

    Sample generation method and system for digital simulation processes
    2.
    发明授权
    Sample generation method and system for digital simulation processes 有权
    数字模拟过程的样本生成方法和系统

    公开(公告)号:US07467170B1

    公开(公告)日:2008-12-16

    申请号:US10669211

    申请日:2003-09-23

    IPC分类号: G06F1/02

    摘要: A method for generating a set of random numbers with statistics represented by a cumulative density function (CDF) includes generating a set of uniformly spaced samples between an upper limit and a lower limit. Each of the uniformly spaced samples are then mapped to a corresponding value on a cumulative density function curve. The set of uniformly spaced samples are then scrambled to randomize the samples. Companding may also be incorporated in the sample generation process.

    摘要翻译: 用累积密度函数(CDF)表示的统计量来生成一组随机数的方法包括在上限和下限之间生成一组均匀间隔的样本。 然后将每个均匀间隔的样本映射到累积密度函数曲线上的相应值。 然后对该组均匀间隔的样本进行加扰以使样本随机化。 压实也可以并入样品生成过程中。

    Sample generation method and system for digital simulation processes
    3.
    发明授权
    Sample generation method and system for digital simulation processes 有权
    数字模拟过程的样本生成方法和系统

    公开(公告)号:US08332449B2

    公开(公告)日:2012-12-11

    申请号:US12275498

    申请日:2008-11-21

    IPC分类号: G06F1/02

    CPC分类号: G06F1/02 G06F7/58 G06F2101/14

    摘要: A method for generating a set of random numbers with statistics represented by a cumulative density function includes generating a set of uniformly spaced samples between an upper limit and a lower limit. Each of the uniformly spaced samples are then mapped to a corresponding value on a cumulative density function curve. The set of uniformly spaced samples are then scrambled to randomize the samples. Companding may also be incorporated in the sample generation process.

    摘要翻译: 用累积密度函数表示的统计量生成一组随机数的方法包括在上限和下限之间生成一组均匀间隔的样本。 然后将每个均匀间隔的样本映射到累积密度函数曲线上的相应值。 然后对该组均匀间隔的样本进行加扰以使样本随机化。 压实也可以并入样品生成过程中。

    Feeder link configurations to support layered modulation for digital signals
    4.
    发明授权
    Feeder link configurations to support layered modulation for digital signals 有权
    馈线链路配置,支持数字信号的分层调制

    公开(公告)号:US08259641B2

    公开(公告)日:2012-09-04

    申请号:US12190526

    申请日:2008-08-12

    IPC分类号: H04B7/185

    摘要: Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.

    摘要翻译: 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线,以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星,同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。

    FEEDER LINK CONFIGURATIONS TO SUPPORT LAYERED MODULATION FOR DIGITAL SIGNALS
    5.
    发明申请
    FEEDER LINK CONFIGURATIONS TO SUPPORT LAYERED MODULATION FOR DIGITAL SIGNALS 有权
    供应商链接配置支持数字信号的层次调制

    公开(公告)号:US20090073917A1

    公开(公告)日:2009-03-19

    申请号:US12190526

    申请日:2008-08-12

    IPC分类号: H04B7/185

    摘要: Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.

    摘要翻译: 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线,以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星,同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。

    Feeder link configurations to support layered modulation for digital signals
    6.
    发明授权
    Feeder link configurations to support layered modulation for digital signals 有权
    馈线链路配置,支持数字信号的分层调制

    公开(公告)号:US07423987B2

    公开(公告)日:2008-09-09

    申请号:US10532631

    申请日:2003-10-20

    IPC分类号: H04B7/185

    摘要: Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.

    摘要翻译: 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线,以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星,同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。

    Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems
    7.
    发明授权
    Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems 有权
    根据分层调制系统的可用性定制载波功率要求的方法和装置

    公开(公告)号:US07173977B2

    公开(公告)日:2007-02-06

    申请号:US10532582

    申请日:2003-10-15

    IPC分类号: H04L27/04

    摘要: A method and apparatus transmitting a layered modulation signal having a first signal layer having first signal symbols and a second signal layer having second signal symbols is disclosed. The method comprises the steps of determining a first signal layer modulation carrier power CL at least in part according to a first signal layer clear sky margin ML and a first signal layer availability, determining an second signal layer modulation carrier power CU at least in part according to an second signal layer clear sky margin MU and an second signal layer availability, modulating the first signal symbols according to a first carrier at the determined first signal layer modulation carrier power; modulating the second signal symbols according to a second carrier at the determined second signal layer modulation carrier power, and transmitting the two layers independently.

    摘要翻译: 公开了一种发送具有具有第一信号符号的第一信号层和具有第二信号符号的第二信号层的分层调制信号的方法和装置。 该方法包括以下步骤:至少部分地根据第一信号层透明天空边缘M L1和第一信号层确定第一信号层调制载波功率C L 可用性,至少部分地根据第二信号层透明天空边缘M N和第二信号层可用性来确定第二信号层调制载波功率C SUB,调制 在确定的第一信号层调制载波功率下根据第一载波的第一信号符号; 在确定的第二信号层调制载波功率下根据第二载波调制第二信号符号,并且独立地发送两个层。

    Feeder link configurations to support layered modulation for digital signals
    8.
    发明授权
    Feeder link configurations to support layered modulation for digital signals 有权
    馈线链路配置,支持数字信号的分层调制

    公开(公告)号:US08804605B2

    公开(公告)日:2014-08-12

    申请号:US13600883

    申请日:2012-08-31

    IPC分类号: H04B7/185

    摘要: Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.

    摘要翻译: 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线,以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星,同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。