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    • 36. 发明申请
    • SYSTEM AND METHOD FOR FRAME SYNCHRONIZATION
    • 用于帧同步的系统和方法
    • US20100260298A1
    • 2010-10-14
    • US12420856
    • 2009-04-09
    • Richard Louis Zinser
    • Richard Louis Zinser
    • H04L7/00
    • H04L7/042
    • A method for identifying receipt of a sync word in a stream of signal data is provided. The method includes receiving a signal value representing an incoming bit in the stream of signal data. The method also includes inserting the signal value into a first shift register having the same length as the sync word. The method further includes calculating a bit value from the signal value. The method also includes storing the bit value into a second shift register having the same length as the sync word. The method further includes counting the number of matches between the bit values in the second shift register and the corresponding bits in the sync word. The method also includes computing a correlation of the signal data and the sync word by summing the product of each signal value in the first shift register and the corresponding bit in the sync word. The method further includes producing a normalized correlation by dividing the correlation by the energy. The method also includes outputting a signal indicating the presence of a sync word if the number of matches is at least equal to a predetermined hard correlation threshold and if the normalized correlation is at least equal to a predetermined soft correlation threshold.
    • 提供了一种用于识别信号数据流中的同步字的接收的方法。 该方法包括接收表示信号数据流中的输入位的信号值。 该方法还包括将信号值插入与同步字长度相同的第一移位寄存器。 该方法还包括从信号值计算位值。 该方法还包括将位值存储到具有与同步字相同长度的第二移位寄存器中。 该方法还包括对第二移位寄存器中的位值与同步字中的相应位之间的匹配次数进行计数。 该方法还包括通过对第一移位寄存器中的每个信号值与同步字中的相应位的乘积相加来计算信号数据和同步字的相关性。 该方法还包括通过将相关性除以能量来产生归一化相关。 如果匹配数量至少等于预定的硬相关阈值,并且归一化相关性至少等于预定的软相关阈值,则该方法还包括输出指示同步字存在的信号。
    • 37. 发明授权
    • Analog-to-digital converter compensation system and method
    • 模数转换器补偿系统及方法
    • US07460043B2
    • 2008-12-02
    • US11145443
    • 2005-06-03
    • Richard Louis Zinser
    • Richard Louis Zinser
    • H03M1/06
    • H03M1/1038H03M1/0658H03M1/12
    • An analog-to-digital converter compensation method includes providing at least one analog tone, converting the analog tone into digital signals, and using the digital signals to generate an error compensation model comprising a plurality of compensation values corresponding to respective digital signals. The compensation values are obtained by applying a time domain window, performing a discrete Fourier transform on digital signals within the time domain window, zeroing out transform bins except for bins within lobes on selected spurious frequencies, performing an inverse Fourier transform, and obtaining resulting signals from applying an inverse of the time domain window.
    • 模数转换器补偿方法包括提供至少一个模拟音调,将模拟音调转换为数字信号,以及使用数字信号产生包括对应于各个数字信号的多个补偿值的误差补偿模型。 通过应用时域窗口,对时域窗口内的数字信号执行离散付里叶变换,对除选择的杂散频率上的波瓣之外的信元进行除零以外的变换仓,执行逆傅立叶变换,并获得结果信号,获得补偿值 从应用时域窗口的倒数。
    • 38. 发明授权
    • Linearization system and method
    • 线性化系统和方法
    • US07161511B2
    • 2007-01-09
    • US11145486
    • 2005-06-03
    • Glen Peter KosteRichard Louis ZinserGraeme Colin McKinnon
    • Glen Peter KosteRichard Louis ZinserGraeme Colin McKinnon
    • H01M1/12G01N24/00
    • H03M1/1033H03M1/12
    • A system for training a linearization compensation model includes a tone generator for providing at least two different RF tones, receiver path components for processing the RF tones, an analog-to-digital converter for converting the processed RF tones into digital signals, and a processor for using the digital signals to generate the linearization error compensation model. The resulting compensation model is particularly useful in a linearization system which includes a receiver for measuring a signal, an electro-optical modulator configured for converting the measured signal to an optical signal, an optical-electrical detector configured for converting the optical signal to an analog electrical signal, an analog-to-digital converter for converting the analog electrical signal into a digital signal with the processor being used for removing linearization errors from the digital signal.
    • 用于训练线性化补偿模型的系统包括用于提供至少两个不同的RF音调的音调发生器,用于处理RF音调的接收器路径组件,用于将经处理的RF音调转换为数字信号的模数转换器,以及处理器 用于使用数字信号产生线性化误差补偿模型。 所产生的补偿模型在包括用于测量信号的接收机的线性化系统中特别有用,配置用于将测量信号转换为光信号的电光调制器,配置成将光信号转换成模拟信号的光电检测器 电信号,用于将处理器用于从数字信号中去除线性化误差的模拟电信号转换成数字信号的模拟 - 数字转换器。