AUTOMATIC GAIN CONTROL OF A DIGITAL RECEIVER FOR RECEIVING DISCONTINUOUS ENVELOPE SIGNALS

摘要

The invention relates to a method for carrying out an effective automatic gain control or AGC on a discontinuous envelope signal (31). Said method comprises a measuring step which, in turn, comprises two measurements (37, 38) of the amplitude of the signal, that are carried out in an anticipated manner during the signal formation phase. The inventive method also comprises a step for estimating the amplitude of the signal (36) formed and for adjusting the gain of the receiving channel. Said method is especially advantageous in that it enables the gain of the receiving channel to be controlled early, the action of the control being carried out before the useful part of the signal appears. The inventive method especially applies to information transmissions in the form of modulated pulses.