Title :
Invertibility of linear periodically time-varying filters
Author :
Vetterli, Martin
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
fDate :
1/1/1989 12:00:00 AM
Abstract :
The invertibility of linear periodically time-varying (LPTV) filters is addressed. A necessary and sufficient condition under which a LPTV filter can be inverted is shown using a LPTV postfilter. Such techniques find application, for example, in aliasing cancellation in multirate systems
Keywords :
filters; linear network analysis; time-varying networks; aliasing cancellation; invertibility; multirate systems; periodically time-varying filters; postfilter; Chaos; Circuit analysis computing; Circuit theory; Frequency; Geometry; Nonlinear filters; Oscillators; Piecewise linear approximation; Piecewise linear techniques; Resistors;
Journal_Title :
Circuits and Systems, IEEE Transactions on
