Digital imbalance correction method and device

摘要: The present invention concerns a digital imbalance correction device, comprising input means adapted to receive first signals I-in, Q-in containing plurality of channels from an I/Q converter stage at respective terminals, each terminal being associated signal branch, time-to-frequency-domain-transforming FFT perform transformation said time-domain into frequency-domain, the result represented as power spectrum signals, subtracting arranged its inputs second which are by spectra transformed and output gain difference function frequency output, cross-correlation third based on proportional phase error between correlation in one branches receiving fourth signal, wherein is corrected such that equals other fifth quadrature relation signals. also corresponding method.