Title :
Constant-input stability of some known digital biquads
Author :
Ramana Rao, Y.V. ; Eswaran, Chikannan
Author_Institution :
Indian Inst. of Technol., Madras, India
fDate :
6/8/1989 12:00:00 AM
Abstract :
Several second-order digital filter structures have been proposed recently, which possess excellent sensitivity characteristics and which are free from zero-input limit cycles. It is shown in this letter that by making some simple modifications, these filter structures can be stabilised against constant-input limit cycles as well.
Keywords :
digital filters; limit cycles; constant-input limit cycles; digital biquads; second-order digital filter structures; sensitivity characteristics; zero-input limit cycles;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890515
