METHOD FOR DEMODULATION OF SIGNALS WITH RELATIVE PHASE DEMODULATION

摘要

FIELD: electricity. ^ SUBSTANCE: signal is received and filtered; its amplitude is levelled against the preset level; Fourier window transformation matrix is shaped; for each value of coordinate on the time axis of the matrix shaped one determines the coordinate value on the frequency axis whereat the matrix in question every time possesses the maximum magnitude; from the matrix elements corresponding to the discovered frequency coordinate a vector of the signal being modulated is shaped for all coordinates on the time axis with such vector mean value calculated and assumed as the threshold magnitude; "1" or "0" value is assigned to the assumed information element following the results of mutual comparison of each value of the vector of the signal being modulated and the threshold magnitude; the duration of the least interval within the bounds whereof the vector of the signal being modulated has exceeded the threshold magnitude is selected as the demodulated symbol duration. ^ EFFECT: enhanced interference immunity of the method for demodulation of signals with relative phase modulation due to usage of properties conditioned by signals presentation in the form of Fourier window transformation 3D matrixes. ^ 4 dwg