A double Nyquist digital product detector for quadrature sampling

  title={A double Nyquist digital product detector for quadrature sampling},
  author={Leopold E. Pellon},
  journal={IEEE Trans. Signal Processing},
This paper presents a novel technique for digitally obtaining the in-phase (I) and quadrature (Q) components of an IF signal. Initially, the input bandpass signal is mixed to a carrier frequency that is one-fourth of the sample rate of a single A/D converter. The digitized bandpass signal is converted into its I and Q components at one-half the AID sample rate by our digital product detector (DPD). The DPD is composed of a commutator, two sign alternators, and two FIR fractionalphase… CONTINUE READING
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