Title :
McClellan transformation for two-dimensional IIR digital filter design
Author :
Nie, X. ; Unbehauen, R. ; Zou, M.-Y.
Author_Institution :
Erlangen-Nurnberg Univ., West Germany
Abstract :
The McClellan transformation is extended to the design of two-dimensional zero-phase and causal IIR (infinite impulse response) digital filters. In the case of a circularly symmetric contour, explicit conditions for a certain globally type preserving property are given, where the corresponding extended McClellan transformation is consequently of the so-called scaling-free form. Examples for circularly symmetric and elliptical contours are presented. A comparison with other McClellan transformations shows the advantages of the extended transformation for the approximation of a given contour.<>
Keywords :
network synthesis; two-dimensional digital filters; 2D zero phase filters; McClellan transformation; circularly symmetric contour; circularly symmetric contours; elliptical contours; globally type preserving property; scaling-free form; two-dimensional IIR digital filter design; Constraint optimization; Digital filters; Digital signal processing; Equations; Finite impulse response filter; Frequency domain analysis; IIR filters; Iron; Remote sensing; Stability;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15099
