Title :
Oversampling-based balanced modulator
Author :
O´Leary, P. ; Maloberti, F.
Author_Institution :
Joanneum Res., Graz, Austria
Abstract :
A new balanced modulator is presented which uses a pulse density modulated sine wave as carrier. The use of oversampling improves the spectral performance for low frequency signal processing, at the cost of extra logic in the carrier generation circuit. The modulator permits the generation of arbitrary carrier frequencies.
Keywords :
modulation; modulators; sampled data systems; balanced modulator; carrier generation circuit; extra logic; generation of arbitrary carrier frequencies; low frequency signal processing; oversampling; oversampling-based balanced modulator; pulse density modulated sine wave; spectral performance; spectral purity maintained; square wave modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910043
