Keyword: «characteristic equation»

INVESTIGATION OF FUNCTIONAL MODELS OF SINGLE-POINT FREQUENCY SYNTHESIZERS WITH CHANNELS FOR AUTOMATIC NOISE COMPENSATION OF A PULSE-PHASE MODULATOR

Authors:

Mihail Gybar,

Anton Korotkov

Functional models of frequency synthesizers with phase distortion auto compensation channels of a pulse-phase modulator (PPM) have been developed, the stability conditions of PPM phase distortion auto compensation channels included in the control circuit and in the feedback circuit of the pulse-phase fre-quency auto-tuning system (PPFAS), as well as in the feedback circuit of the PPFAS ring, have been analytically determined.

Keywords: stability, frequency synthesizer, hurwitz criterion, pulse-phase modulator, characteristic equation