Title :
Processing of signals in their oversampled delta-sigma domain
Author :
Maloberti, Franco ; O´Leary, Patrick
Author_Institution :
Dept. of Electron., Pavia Univ., Italy
Abstract :
A non conventional method for the processing of signal is presented. The basic idea is derived from noting that an oversampled (delta sigma) flow represents a signal in two different fashions; an analogue representation since it keeps the signal information in its low frequency range and a digital representation since it is made of a 1 bit high speed bit stream. Simple manipulations of such digital streams will give rise to a suitable processing of their low frequency (analogue) contents. The paper shows how to get some basic functions: addition, subtraction and multiplication; moreover some examples of practical data processing are considered. Significant architectures and results of computer simulations are also presented
Keywords :
analogue-digital conversion; delta modulation; modulators; signal processing; signal processing equipment; addition; analogue representation; architectures; computer simulations; data processing; digital representation; high speed bit stream; multiplication; oversampled delta-sigma domain; signal processing; subtraction; CMOS technology; Clocks; Computer simulation; Data processing; Delta modulation; Delta-sigma modulation; Digital filters; Frequency; Signal processing; Stochastic processes;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184382
