Title :
Symmetry in the frequency response of two-dimensional (γ1, γ2) complex plane discrete-time systems
Author :
Reddy, Hari C. ; Kho, I-Hung ; Rajan, P.K. ; Stubberud, Allen R.
Author_Institution :
Dept. of Electr. Eng., California State Univ., Long Beach, CA, USA
fDate :
31 May-3 Jun 1998
Abstract :
This paper presents the constraints on two-dimensional γ-domain polynomials so that they possess various types of symmetries in their magnitude functions. Refering to a parameter (Δ), it is concluded that new symmetry conditions derived in γ-plane converge to those of 2-D continuous-time systems as Δ tends to zero. For analog sampled-data systems, Δ can be treated as a sampling period, otherwise it is simply treated as a design parameter
Keywords :
discrete time filters; filtering theory; frequency response; polynomials; sensitivity analysis; two-dimensional digital filters; 2D complex plane discrete-time systems; analog sampled-data systems; design parameter; frequency response symmetry; sampling period; two-dimensional γ-domain polynomials; two-dimensional discrete-time systems; Filters; Finite wordlength effects; Frequency response; Polynomials; Process design; Reflection; Sampling methods;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.694409
