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    • 13. 发明申请
    • SATELLITE TELECOMMUNICATION SYSTEM AND METHOD WITH MULTISPOT COVERAGE AND WITH VARIABLE CAPACITY DISTRIBUTION
    • 卫星通信系统和方法与多点覆盖和可变容量分配
    • US20150295637A1
    • 2015-10-15
    • US14682885
    • 2015-04-09
    • THALES
    • Bernard CHARRAT
    • H04B7/185H04J1/08H04J1/10
    • H04B7/18582H04B7/18515H04B7/18539H04B7/2041H04J1/08H04J1/10
    • A telecommunication system comprises channels connected to a spot generation device, each spot being able to cover a dedicated user cell. All the channels have an identical bandwidth. The spot generation device comprises channel amplifiers with variable gain and with constant output power dedicated to each channel, the output power levels of all the channel amplifiers being constant and identical, frequency demultiplexers respectively connected to the channel amplifiers and intended to split the bandwidth assigned to each channel into N sub-bands having the same width corresponding to N carriers having different frequencies, a device for selecting and distributing all the carriers between the spots, and frequency combiners respectively dedicated to each spot, the number of carriers assigned to each spot being variable from one spot to another spot according to the needs of the corresponding users.
    • 电信系统包括连接到点产生装置的信道,每个点能够覆盖专用用户小区。 所有频道具有相同的带宽。 现场发生装置包括具有可变增益的信道放大器和专用于每个通道的恒定输出功率,所有信道放大器的输出功率电平是恒定的和相同的,分别连接到信道放大器的频率解复用器,并且意图将分配给 每个通道分成具有对应于具有不同频率的N个载波的相同宽度的N个子带,用于选择和分配各个点之间的所有载波的装置和分别专用于每个点的频率合成器,分配给每个点的载波数为 根据相应用户的需要,从一个点变为另一个点。
    • 14. 发明授权
    • Pre-channelized spectrum analyzer
    • 预通道频谱分析仪
    • US09112735B1
    • 2015-08-18
    • US14077248
    • 2013-11-12
    • Fredric J. Harris
    • Fredric J. Harris
    • H04L27/28H04L27/00H04J1/08
    • H04L27/0006H04J1/08H04K3/45H04K3/822
    • A pre-channelized spectrum analyzer utilizes a channelizer as a preprocessor for parallel-configured low-resolution spectrum analyzers so as to perform as a high resolution spectrum analyzer. The pre-channelized spectrum analyzer has a polyphase filter that channelizes a signal input and an IFFT that generates filter bank outputs derived from the channelized signal. Spectrum analyzers are in communications with the filter bank outputs so as to generate a spectral decomposition of a subset of those outputs. The spectrum analyzers each perform a window and an FFT function on a corresponding one of the filter bank subset.
    • 预通道频谱分析仪利用信道化器作为并行配置低分辨率频谱分析仪的预处理器,以便作为高分辨率频谱分析仪。 预通道频谱分析仪具有多相滤波器,用于对信号输入进行通道化,并产生IFFT,其产生从信道化信号导出的滤波器组输出。 频谱分析仪与滤波器组输出通信,以便产生这些输出的子集的频谱分解。 频谱分析仪各自在相应的一个滤波器组子集上执行窗口和FFT功能。
    • 17. 发明授权
    • Polarization diverse antenna array arrangement
    • 极化多样的天线阵列布置
    • US08345716B1
    • 2013-01-01
    • US11823146
    • 2007-06-26
    • Timothy Ehret
    • Timothy Ehret
    • H04J1/08
    • H04B7/10H04B7/0617H04B7/0802
    • An antenna array includes pairs of antenna elements, each responsive to mutually orthogonal first and second polarizations for producing streams of analog signals. The number of transceivers is halved by time-division multiplexing the analog signals onto a single path and transceiving the stream in that path. The transceived analog signals are digitized, to produce streams of digital samples, alternate ones of which represent the first and second polarizations. Alternate samples of the stream of digitized signals represent the analog received first and second polarizations. Simple processing identifies the polarization of the received signals, and can be used for weather evaluation or for polarimetric identification.
    • 天线阵列包括天线元件对,每个天线元件响应于相互正交的第一和第二偏振,以产生模拟信号流。 通过将模拟信号时分复用到单个路径上并收发该路径中的流,收发器的数量减半。 收发的模拟信号被数字化,以产生数字样本流,其中一个代表第一和第二极化。 数字化信号流的替代样本表示模拟接收的第一和第二极化。 简单的处理识别接收信号的极化,并且可以用于天气评估或用于极化识别。