Title :
Design of 2-D variable fractional delay FIR filter using 2-D differentiators
Author :
Tseng, Chien-Cheng
Author_Institution :
Dept. of Comput. & Commun. Eng., Nat. Kaohsiung First Univ. of Sci. & Technol., Taiwan
Abstract :
In this paper, the design of two-dimensional (2-D) variable fractional delay FIR filter using 2-D differentiators is presented. First, the Taylor series expansion is used to transform the specification of a 2-D variable fractional delay filter into the one of a 2-D differentiator. This transform makes the design problem of a 2-D fractional delay filter reduce to the design of 2-D differentiators with different orders. Then, a simple window method is proposed to design the 2-D differentiators. Also an analysis of the design error is provided. Finally, examples are demonstrated to illustrate the effectiveness of this new design approach.
Keywords :
FIR filters; delays; error analysis; filtering theory; series (mathematics); two-dimensional digital filters; 2D differentiators; 2D variable fractional delay FIR filter; Taylor series expansion; design error analysis; two-dimensional FIR filter design; window method; Delay; Design methodology; Finite impulse response filter; Frequency response; IIR filters; Least squares methods; Signal sampling; Speech synthesis; Taylor series; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205805
