DIGITAL-TO-ANALOG SYNTHESIZER OF COMPLEX FREQUENCY-MODULATED SIGNALS Russian patent published in 2017 - IPC H03L7/18 

FIELD: physics.

SUBSTANCE: digital-to-analog synthesizer of complex frequency-modulated signals comprises of a digital computing synthesizer, a voltage controlled oscillator (VCO) with two control elements, a first divider with a variable division coefficient (DVDC), a second divider with a variable division coefficient, a first phase discriminator, a low pass filter (LPF), a third divider with a variable division coefficient, a modulator, a second phase discriminator.

EFFECT: providing frequency tuning by introducing a second control loop and increasing the speed of acting.

1 dwg