| 摘要 |
FIELD: radio engineering and communications.SUBSTANCE: invention can be used to provide high-quality communication over a communication channel. Method for frequency modulation of oscillations is characterised by measuring, in main and additional channel, change in amplitude of signals with coefficients A and B respectively, output signals of channels are combined and normalised based on coefficient, wherein signal of main channel is an input signal of sinusoidal shape, and signal of additional channel is obtained from an input signal by simultaneous integration and differentiation, multiplying results of data operations and square-rooting result of multiplication, wherein coefficient B is selected as equal to 1, and coefficient A is set as a tangent from integral modulating voltage u(t).EFFECT: wider range of deviation of frequency of modulated oscillations and simplifying device implementing said method.2 cl, 2 dwg |
