Title :
Study of various symmetries in the frequency response of two-dimensional delta operator formulated discrete-time systems
Author :
Reddy, Hari C. ; Rajan, P.K. ; Moschytz, George S. ; Stubberud, Allen R.
Author_Institution :
Dept. of Electr. Eng., California State Univ., Long Beach, CA, USA
Abstract :
This paper deals with the definitions and the testing for the presence of various symmetries in the magnitude response of two-dimensional (2-D) delta operator formulated discrete-time systems. The symmetry constraints defined provide a unification with the analog 2-D case. With the sampling period=0, the results correspond to the conditions on analog polynomial magnitude symmetry
Keywords :
discrete time filters; frequency response; polynomials; symmetry; two-dimensional digital filters; 2D filter design; analog polynomial magnitude symmetry; diagonal symmetry; fourfold rotational symmetry; frequency response; magnitude response; quadrantal symmetry; sampling period; symmetry constraints; two-dimensional delta operator formulated discrete-time systems; Discrete time systems; Discrete transforms; Filters; Frequency response; Information processing; Polynomials; Sampling methods; Signal processing; System testing; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541717
