RECEIVER WITH ADAPTIVE DETECTION THRESHOLD FOR TDMA COMMUNICATIONS

摘要

A method of and a digital data recovery circuit (1) for extacting digital data from an analog data signal in a Time Division Multiple Access (TDMA) communications system, wherein the analog data signal of a communications link is exchanged in bursts or time slots. The circuit (1) comrises analog-to-digital (ADC) converter means (4), digital filter means (6) for providing a threshold or slice level, and digital comparator means (5) for comparing the digital data signal and the slice level for providing the recovered digital data. The digital filter means (6) comprise storage means (15) for digitally adjusting the filter time constants and slice level for each burst or time slot independently in accordance with specific settings applicable to a communications link associated with a burst or time slot.