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    • 73. 发明公开
    • QUASI-PARALLEL MULTICHANNEL RECEIVERS FOR WIDEBAND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS AND ASSOCIATED METHODS
    • 准并行多通道接收机宽带正交频通信和相关方法
    • EP1700441A2
    • 2006-09-13
    • EP04815157.5
    • 2004-12-20
    • INTEL CORPORATION
    • MALTSEV, AlexanderSADRI, AliSERGEYEV, SergeyBELONOZHKIN, AlexanderSERGEYEV, Vadim
    • H04L27/26
    • H04L27/2649H04B1/005H04B1/0057H04B1/16H04B1/406H04B7/0413H04L27/2608H04L27/2653
    • A quasi-parallel receiver may simultaneously receive signals within several subchannels that comprise a wideband channel. The receiver includes a subchannel filter selection switch that provides a baseband signal to a selected one of a plurality of subchannel low-pass filters. A heterodyne frequency generator provides one of a plurality of heterodyne frequencies to convert an RF signal received within a selected subchannel to the baseband signal. The subchannel low-pass filters accumulate signal information from an associated one of a plurality of subchannels during a filter-input sampling interval. In some embodiments, individual analog-to-digital converters receive the accumulated signal outputs from an associated subchannel filter and generate digital signals for a subsequent Fourier transformation.; In some embodiments, a normalized signal output may be provided to the analog-to-digital converters, allowing the use of lower resolution analog-to-digital converters. The analog-to-digital converters may have sampling rates based on the subchannel bandwidth.
    • 一个准并行接收器可以在几个子信道包含一个宽带信道内同时接收信号。 该接收机包括一个子信道滤波器选择开关没有提供基带信号到子信道低通滤波器的多个所选择的一个。 阿差频率发生器提供外差频率处的多个转换到所选择的子信道向所述基带信号内接收的RF信号中的一个。 子信道低通滤波器的滤波器输入抽样间隔期间从在子信道中的多个相关联的一个累积的信号信息。 在一些实施方案中,单独的模拟 - 数字转换器从相关联的子信道滤波器接收所累积的信号输出和产生用于随后的傅里叶变换的数字信号。 在一些实施例中,归一化的信号输出可以被提供给模拟 - 数字转换器,从而允许使用较低分辨率的模拟到数字转换器。 模拟 - 数字转换器可以具有基于子信道带宽的采样率。