CORRELATED DETECTION METHOD OF PHASE-SHIFT SIGNALS Russian patent published in 2020 - IPC H04B15/00 

FIELD: radio engineering and communication.

SUBSTANCE: invention relates to electrical radio communication and can be used for detecting phase-shift keyed signals in radar and radio navigation systems, as well as in mobile data reception and transmission systems. Method of correlated detection of phase-shift keyed signals includes calculation of correlation integral and comparison of correlation integral value with zero level of threshold voltage, based on which decision is made on information symbol, performing time synchronization required for time alignment of initial information and received integrated signals, taking signal samples after synchronization with pulse rate of information signal pulses, calculating an average value of received signal samples, recording the calculated average values of readings of the received signal into memory, comparing the average value of samples of the received signal, calculated at the current stage, and the average value of samples of the received signal, calculated at the previous stage, generation of control signals required for selection of reset mode or mode of average value accumulation, subtraction of received average values of readings received signal from each reading.

EFFECT: eliminating dependency of reception accuracy on the value of the constant component in the signal at the output of the demodulator, arriving at the input of the comparison device with a fixed level of the threshold voltage, providing resistance to concentrated and pulsed interference, as well as enabling reliable reception of information with time-varying channel parameters, frequency and level of the action noise.

1 cl, 1 dwg, 1 tbl