Pre-equalizer for a digitally modulated RF signal and method
    1.
    发明授权
    Pre-equalizer for a digitally modulated RF signal and method 有权
    用于数字调制RF信号的预均衡器和方法

    公开(公告)号:US08842720B2

    公开(公告)日:2014-09-23

    申请号:US13929670

    申请日:2013-06-27

    Applicant: NXP B.V.

    Abstract: The method comprises receiving an input stream of symbols (x(i)) representing a phase change and magnitude of an RF signal, the magnitudes of the symbols are constant, the phase changes of the symbols encode digital information, and adjust the input stream of symbols to reduce inter-symbol interference. The adjusting iteratively determines a next symbol of the equalized stream (x′(n)) after receiving a next symbol of the input stream (x(n)) by multiplying the next symbol of the input stream (x(n)) with a next adjusting real number (a(n)), multiplying a previous symbol of the input stream (x(n−1)) with a previous adjusting real number (a(n−1)), the previous symbol being received before the next symbol of the input stream, and the next symbol of the equalized stream is computed from the multiplied next symbol and the multiplied previous symbol of the input stream.

    Abstract translation: 该方法包括接收表示RF信号的相位变化和幅度的符号(x(i))的输入流,符号的大小是恒定的,符号的相位变化对数字信息进行编码,并且调整输入流 符号以减少符号间干扰。 在通过将输入流(x(n))的下一个符号乘以输入流(x(n))的下一个符号之后,通过将输入流(x(n))的下一个符号与 下一个调整实数(a(n)),将输入流的先前符号(x(n-1))与先前的调整实数(a(n-1))相乘),先前的符号在下一个 输入流的符号,并且均衡流的下一个符号从乘法的下一个符号和输入流的相乘的先前符号计算。

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