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    OPTIMIZED UPLINK EFFICIENCIES FOR TRANSMISSION OF SATELLITE DATA
    2.
    发明申请
    OPTIMIZED UPLINK EFFICIENCIES FOR TRANSMISSION OF SATELLITE DATA 有权
    优化传输卫星数据的上网效率

    公开(公告)号：US20090224824A1

    公开(公告)日：2009-09-10

    申请号：US12421485

    申请日：2009-04-09

    申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    IPC分类号： G01R19/00

    CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

    摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

    摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

    OPTIMIZED UPLINK EFFICIENCIES FOR TRANSMISSION OF SATELLITE DATA
    3.
    发明申请
    OPTIMIZED UPLINK EFFICIENCIES FOR TRANSMISSION OF SATELLITE DATA 有权
    优化传输卫星数据的上网效率

    公开(公告)号：US20080129374A1

    公开(公告)日：2008-06-05

    申请号：US11870955

    申请日：2007-10-11

    申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    IPC分类号： G01R19/00

    CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

    摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

    摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

    Optimized uplink efficiencies for transmission of satellite data
    4.
    发明授权
    Optimized uplink efficiencies for transmission of satellite data 有权
    优化卫星数据传输的上行效率

    公开(公告)号：US07859330B2

    公开(公告)日：2010-12-28

    申请号：US12421485

    申请日：2009-04-09

    申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    IPC分类号： G01R19/00

    CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

    摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

    摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。

    Reducing spectral roll-off factors to increase spectral efficiency
    5.
    发明授权
    Reducing spectral roll-off factors to increase spectral efficiency 有权
    降低光谱衰减因子，提高光谱效率

    公开(公告)号：US07844213B2

    公开(公告)日：2010-11-30

    申请号：US11831821

    申请日：2007-07-31

    申请人： Ernest C. Chen ,  Joseph Santoru ,  Shamik Maitra ,  Dennis Lai ,  Tung-Sheng Lin ,  Guangcai Zhou

    发明人： Ernest C. Chen ,  Joseph Santoru ,  Shamik Maitra ,  Dennis Lai ,  Tung-Sheng Lin ,  Guangcai Zhou

    IPC分类号： H04H1/00

    CPC分类号： H04B7/18515

    摘要： Systems for delivering a plurality of broadcast programs where the transmitter and receiver roll-off factors are mismatched. A system in accordance with the present invention comprises a transmitter comprising a modulator, and a plurality of receivers, each receiver in the plurality of receivers receiving the plurality of broadcast programs, each receiver in the plurality of receivers further comprising a demodulator; wherein the modulator has a first root-raised cosine filter having a first roll-off factor and each receiver has a second root-raised cosine filter having a second roll-off factor, the first roll-off factor being smaller than the second roll-off factor.

    摘要翻译： 用于传送发射机和接收机滚降因子不匹配的多个广播节目的系统。 根据本发明的系统包括：发射机，包括调制器和多个接收机，所述多个接收机中的每个接收机接收所述多个广播节目，所述多个接收机中的每个接收机还包括解调器; 其中所述调制器具有具有第一滚降因子的第一根升余弦滤波器，并且每个接收器具有具有第二滚降因子的第二根升余弦滤波器，所述第一滚降因子小于所述第二滚降系数， 关闭因素。

    Optimized uplink efficiencies for transmission of satellite data
    8.
    发明授权
    Optimized uplink efficiencies for transmission of satellite data 有权
    优化卫星数据传输的上行效率

    公开(公告)号：US07535292B2

    公开(公告)日：2009-05-19

    申请号：US11870955

    申请日：2007-10-11

    申请人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    发明人： Guangcai Zhou ,  Tung-Sheng Lin ,  Dennis Lai ,  Joseph Santoru ,  Ernest C. Chen ,  Shamik Maitra ,  Cecilia Comeaux

    IPC分类号： G01R19/00

    CPC分类号： H04B17/0085 ,  H03F1/32 ,  H04B17/15

    摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

    摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。