FIELD: physics, communications.
SUBSTANCE: one of signal processing systems for noise reduction includes multiplier for phase with enhanced deviation, digital up-converter of intermediate frequency, first and second digital-to-analog converters, and splitter for phase with enhanced deviation. Another signal processing system for noise reduction includes digital up-converter of intermediate frequency, multiple digital-to-analog converters, analog I/Q modulator, and band filter.
EFFECT: reduced level of amplitude modulated and phase modulated noise components.
30 cl, 17 dwg
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