Corpus ID: 4984661

Measuring demodulator imbalance in radio frequency receivers by tone test

  title={Measuring demodulator imbalance in radio frequency receivers by tone test},
  author={P. H{\"a}ndel and P. Zetterberg},
  • P. Händel, P. Zetterberg
  • Published 2009
  • Engineering
  • The measurement of in-phase/quadrature (IQ) imbalance parameters of radio frequency direct downconversion receivers by tone test is considered. The receiver is excited by a radio frequency sinewave, and the digital baseband output is used as the sole basis for the determination of the IQ imbalance parameters, which are the gain imbalance, quadrature skew and local oscillator leakage. A set of parameters is estimated from the baseband output of the direct downconversion receiver and the required… CONTINUE READING
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