An Analytical Method for the Multiplierless 2-D FIR Filter Functions and Hilbert Transform in z2 Domain.

Autor: Djordjevic-Kozarov, Jelena R., Pavlovic, Vlastimir D.
Zdroj: IEEE Transactions on Circuits & Systems. Part II: Express Briefs; Aug2013, Vol. 60 Issue 8, p527-531, 5p
Abstrakt: A novel analytical method for the new class of linearphase multiplierless 2-D finite-impulse response (FIR) digital filter functions generated by applying the Christoffel–Darboux formula for classical Chebyshev polynomials of the first and the second kind, in a compact explicit representative form, is proposed in this brief. Correct transformation from a continuous 2-D domain into the z domains without residuum and without errors is described. The proposed solution with high selectivity is a filter function in the z1 domain and the Hilbert transformer in the z2 domain. A corresponding example of the new class of linear-phase highly selective 2-D FIR digital filters of low complexity, which is obtained by the proposed approximation technique, is shown in this brief. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index