FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering, and in particular to methods for receiving digital signals transmitted by the amplitude shift keying (ASK) method, and can be implemented in communication and data transmission systems. The claimed technical result is achieved due to the fact that a windowed Fourier transform (WFT) matrix of the received ASK signal is formed, which is modified. Wherein the elements of the modified WFT matrix are the values obtained as a result of calculating the number two, the exponent of which is the calculated vectors of the modules of the original WFT. This allows you to get a clear contour of the function of the envelope of the values of the WFT matrix, which is necessary for demodulating ASK signals.
EFFECT: enabling demodulation of ASK signals under conditions of additive noise in the receiving channel.
1 cl, 7 dwg
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