AMPLITUDE SHIFT KEYING DEMODULATOR Russian patent published in 2023 - IPC H03D5/00 H04L27/00 

FIELD: radio communications.

SUBSTANCE: used in the demodulation of amplitude shift keying (ASK) signals in fading channels. This technical result is ensured by adaptively changing the value of the decision threshold based on the results of summing the half amplitude values of the signal parcels processed at the current and previous clock cycles, which is carried out by additionally introducing into the demodulator the first voltage divider into two, the input of which is connected to the output of the integrator, and the output - with the first input of the adder, and also due to the introduction of a second voltage divider into two, the input of which is connected to the output of the delay block for the duration of the symbol, and the output - to the second input of the adder.

EFFECT: reduction of demodulation errors of ASK signals in channels with fading under noise conditions.

1 cl, 3 dwg