Title :
Two´s complement quantization in periodic digital filters
Author :
Tharnvichai, R. ; Bose, Tamal
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
fDate :
8/1/2002 12:00:00 AM
Abstract :
The stability of periodically shift variant (PSV) filters are studied when implemented with two´s complement truncation (TCT) quantization. Block form and standard (nonblock) 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 block implementations. Examples are given to illustrate the results
Keywords :
circuit stability; digital filters; quantisation (signal); time-varying filters; PSV filters; TCT quantization; block form; nonblock form; periodic digital filters; periodically shift variant filters; second-order coupled-form filters; stability; standard form; sufficient conditions; two´s complement truncation quantization; Digital filters; Frequency; IIR filters; Image processing; Limit-cycles; Nonlinear filters; Quantization; Speech processing; Stability; Sufficient conditions;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2002.800408
