FIELD: information technologies and radio engineering; multichannel data transfer systems.
SUBSTANCE: proposed method for multiplying analog cosine oscillation frequency involves analog-to-digital conversion of analog cosine fixed-frequency oscillation , arc-cosine conversion of fixed-frequency digital signal, and analog-to-digital conversion of fixed-frequency digital signal; in addition, it includes analog-to-digital conversion of respective information signal in each of n newly introduced channels, generation of digital signal corresponding to fixed-frequency harmonic number which is added to respective converted information signal; total signal thus obtained is multiplied by converted fixed-frequency digital signal, and signal obtained upon multiplication is subjected to cosine and then digital-to-analog conversion.
EFFECT: ability of generating fixed-frequency harmonics with minimal level of stray digital spectral components; enhanced frequency of generated oscillation spectrum.
1 cl, 2 dwg
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