By Topic

On the use of periodic clock changes to implement linear periodic time-varying filters

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

2 Author(s)
Duverdier, A. ; Dept. of Signal Processing, CNES, Toulouse, France ; Lacaze, B.

A stationary process subjected to a linear periodic time-varying filter becomes cyclostationary. Under certain inversibility conditions, perfect linear reconstruction of a bandlimited input process can be obtained when the filter is known. In this paper, we show an original implementation method to realize a linear periodic filter by means of periodic clock changes (PCCs) that corresponds to a physical model and presents a low implementation cost. We also present how periodic clock changes can be implemented in practice. Moreover, we introduce a method to estimate the parameters of the obtained filter necessary for the reconstruction. This estimation is particularly useful when the signals are sampled. We apply these results to analog scrambling. Examples are given both for a continuous valued signal and a binary signal.

Published in:

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:47 ,  Issue: 11 )