Title :
Stability of periodic digital filters under quantization
Author :
Bose, Tamal ; Thamvichai, R. ; Schroeder, Jim
Author_Institution :
Dept. of Electr. & Comput. Eng., Utah State Univ., Logan, UT, USA
Abstract :
The stability of periodically shift variant (PSV) filters is studied when implemented with two´s complement truncation (TCT) quantization. Block form and standard (non block) form implementations are considered and two sufficient conditions are established for stability. As a special case, second-order coupled-form PSV filters are then investigated under TCT quantization. Stability regions are established within the parameter space for two different types of block implementations. Examples are given to illustrate the results.
Keywords :
digital filters; numerical stability; quantisation (signal); block form implementations; periodic digital filters; periodically shift variant filters; second-order coupled-form filters; stability; two´s complement truncation quantization; Bandwidth; Digital filters; IIR filters; Image coding; Image processing; Limit-cycles; Quantization; Registers; Speech processing; Stability;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.986990
