FIELD: physics, radiotechnics.
SUBSTANCE: invention relates to radiotechnics. The technical effect is the determination of a method of communication of messages in channels containing interferences. For that purpose, various options of the method are proposed, for active noise reduction, at an example of the communication of and reduction of noise in audio signals. The invention describes a process of amplification of electric signals, for example, in power amplifiers, as well as a multi-band threshold noise suppressor. In electric signal amplification, the traditional feedback is designed as a multi-function assembly, a signal processing unit. This unit can be designed, for example, using a computer and allows to ensure the required electric parameters of the feedback circuit and to generate a number of new control signals for the amplifier operation mode optimisation.
EFFECT: optimisation of signal transmission in channels with interferences.
36 cl, 30 dwg
