Cart (Loading....) | Create Account
Close category search window
 

Calculating delta modulator performance

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Johnson, F. ; Ministry of Technology, Christchurch, Hants, England

The various parameters which affect the performance of a single integration exponential delta modulator are discussed, viz., line rate, signal channel bandwidth and the time constant of the RC combination ("integrator") used in the feedback path of the coder (and in the forward path of the decoder). The performance of the delta modulator is described quantitatively in terms of its overload characteristic (level at which harmonic distortion occurs versus signal frequency), its coding threshold, and the level of quantizing noise. A novel form of diagram is constructed, showing these performance boundaries in a manner which enables the dynamic range of the coder as a function of signal frequency to be readily appreciated. At the same time, values of signal to quantizing noise ratio are easily ascertainable. The shape of the overload characteristic is discussed, and attention is drawn to the importance of relating this to the long-term spectrum of the input signal. A formula is derived for the effect of random errors occurring in the digital transmission path, and it is shown how this may be minimized. The delta-sigma modulator is treated in a similar way.

Published in:

Audio and Electroacoustics, IEEE Transactions on  (Volume:16 ,  Issue: 1 )

Date of Publication:

Mar 1968

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.