system for compensating the phase shift of a turbodekodierers

摘要

The invention relates to a receiver system with a turbo code of a signal emitted by a transmitter, turbo code modulated and characterized in that it comprises: - a flexible demapper (1) whose output is connected to a turbo decoder (2), and also comprises an adaptive control loop including: - a measurement generator (3) whose input is connected to the output of the turbo decoder in order to receive the vector of reliability (llrout) of the result and adapted to transform this vector in a measurement reliability (m (i)), which is equal to the average of the smallest values of reliability of the bits of the word transmitted to - an estimator (4) of the phase shift whose output is connected to - a compensator (5) positioned upstream of the phase demapper flexible and able to control the incoming signal of the phase value (φ).