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Processing device and processing method

  • US 9,569,017 B2
  • Filed: 11/10/2014
  • Issued: 02/14/2017
  • Est. Priority Date: 11/08/2013
  • Status: Active Grant
First Claim
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1. A processing device comprising:

  • a plurality of digital demodulators, each of the digital demodulators configured to generate in-phase and quadrature signal information corresponding to a frequency, wherein each digital demodulator includes;

    an analog-to-digital converter (ADC) for sampling and converting an input signal to a digital received signal;

    a signal generator for generating a corresponding in-phase signal and a corresponding quadrature signal based on the sampling points of the ADC and the frequency, wherein the signal generator generates a set of in-phase and quadrature signals every 60 degrees, and the ADC also performs sampling every 60 degrees, wherein, at 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees, and 330 degrees, the signal values corresponding to a sinusoidal wave generated by the signal generator are 1, 2, 1, −

    1, −

    2, and −

    1, respectively; and

    the signal values corresponding to a cosine wave generated by the signal generator are 1, 0, 1, −

    1, 0, and −

    1, respectively;

    at least one mixer for mixing the in-phase signal and the digital received signal to generate an in-phase digital signal and mixing the quadrature signal and the digital received signal to generate a quadrature digital signal; and

    at least one addition integrator for performing addition integration on the in-phase digital signal to generate an in-phase integration signal and performing addition integration on the quadrature digital signal to generate a quadrature integration signal,wherein the mixer and the addition integrator both perform operations on integers; and

    an information transmitting module configured to receive, process, and transmit the in-phase and quadrature signal information generated by the plurality of digital demodulators.

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