FORFARANDE OCH ANORDNING VID SIGNALBEHANDLING, INNEFATTANDE SAMPLING OCH MULTIPLICERING

摘要

A signal processing, which requires multiplication of samples of a periodic signal with two sinusoidal signals and which is usually done by means of generators for the sinusoidal signals and multipliers, is done instead solely by means of a switch O and two inverters I1, I2, preferably in that the sampling frequency is made four times larger than the frequency of the periodic signal.