DEVICE FOR DETECTION OF SIGNALS HAVING DOUBLE RELATIVE PHASE MODULATION Russian patent published in 1994 - IPC

FIELD: radio engineering. SUBSTANCE: device has oscillator, quadrature phase shifter, first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth and sixteenth multipliers, first, second, third, fourth, fifth and sixth low-pass filters, first, second, third, fourth delay units, first, second, third, fourth, fifth adders , first, second, third, fourth, fifth and sixth surge injectors, first, second, third, fourth detectors, first and second matching units, first and second inverters, comparison unit, first and second high-pass filters, decoder. EFFECT: increased functional capabilities by additional detection of angle modulation (frequency, relative phase, double relative phase types of modulation). 2 dwg