ZF-BASED ADAPTIVE ASYNCHRONOUS RECEIVER

The invention concerns an asynchronous receiver for digital transmission and recording systems. The receiver comprises a sampling rate converter (SRC) for timing recovery, preceded by a digital adaptive equalizer operating at the sampling rate 1/Ts, asynchronous to the data rate 1/T. An equalizer adaptation method using zero-forcing (ZF) techniques is described for adapting equalizer taps asynchronously to the data rate via a control loop. To this end, the control loop comprises temporal interpolation means performing time-base conversion for converting signals from the synchronous domain (1/T) to the asynchronous domain (1/Ts) and spatial conversion means to convert T-spaced signals into Ts-spaced signals.