Processing of signals in their oversampled delta-sigma domain

Author

Maloberti, Franco ; O´Leary, Patrick

Author_Institution

Dept. of Electron., Pavia Univ., Italy

fYear

1991

fDate

16-17 Jun 1991

Firstpage

438

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/CICCAS.1991.184382

Filename

184382