QAM receiver having means for correcting the receiver quadrature error.

摘要

The receiver has a weighting circuit for weighting the in-phase and quadrature components of the received signal with respective coefficients dependent on the quadrature error of the demodulated components. A correction stage (KS) provides a correction value (psi E) for the quadrature error by evaluation of the in-phase and quadrature components formed by the gradients of the quadratic decision errors (eI, eQ).