METHOD FOR ADAPTIVE SELECTION OF OPTIMAL PARAMETER OF CORRECTION ALGORITHM BASED ON PHASE SPREAD OF CORRECTED SIGNAL Russian patent published in 2019 - IPC H03H21/00 

FIELD: wireless communication equipment.

SUBSTANCE: invention relates to a communication equipment and can be used in data communication systems with adaptive signal correction for selecting a parameter of the correction algorithm. Using a certain algorithm R{}, based on received test signal u₀(t) calculating impulse response of correcting filter h_cor(t, α), by means of which, using an algorithm R{}, correcting received information signal u_m(t) with phase manipulation, carrying N information symbols, resulting in corrected information signal K_m(t, α). Absolute value of phase and amplitude of each symbol of corrected signal is determined, obtaining phase values P₁…P_N and amplitude values A₁…A_N. Obtained phase values are converted so that all converted phases of all symbols are located in the sector corresponding to the symbol "0", obtaining values of the converted phases and then calculating exponentials A₁·exp(i·P₁)...A₁·exp(i·P_N). Obtained exponent values are summed up. Module of obtained sum is calculated |Q|, after which the dependence |Q| of parameter α by changing value of this parameter, resulting in optimum value of parameter α_opt, corresponding to maximum |Q|.

EFFECT: selecting an optimum parameter of the signal correction algorithm based on analysis of phase spread of the corrected information signal, without knowledge of a priori information on noise power, signal/noise ratio and a corrected information signal.

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