Method to prevent the divergence of an adaptive echo canceller on a noisy signal environment.

摘要

The invention relates to a method for preventing the divergence in the adaptive compensator ECHOES IN A NOISE ENVIRONMENT. The method has the steps of: determining a level HALF OF NOISE (-45 dBmO) in the path of ECO, DETERMINE attenuation (AE) ECO TRAVEL AND PREVENT ADAPTATION Compensator ECOS IF signal level (X (I)) TO BE SENT TO TRAVEL ECO AND CAUSE AN ECO (R (I)) attenuated a predetermined threshold level, iS IN THE DOMAIN OF A MARGIN preselected attenuation of ECO, ABOVE THE NOISE LEVEL MEDIUM .