Title :
Oversampling applied to amplitude modulation
Author :
O´Leary, Patrick ; Maloberti, Franco
Author_Institution :
Joanneum Res., Graz, Austria
Abstract :
A novel balanced modulator which uses a pulse-density-modulated sine wave as a carrier is presented. 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 circuit is suitable for operation in the audio range
Keywords :
amplitude modulation; analogue circuits; modulators; signal processing; amplitude modulation; audio range; balanced modulator; carrier generation circuit; direct digital synthesis; low-frequency signal processing; oversampling; pulse-density-modulated sine wave; spectral performance; Amplitude modulation; Capacitors; Circuits; Clocks; Digital modulation; Frequency shift keying; Frequency synthesizers; Pulse modulation; Read only memory; Signal generators;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176701
