A method for the design of periodical notch filters

Author

Yáñez-Macías, Juan J. ; Jovanovic-Dolecek, Gordana

Author_Institution

Dept. of Electron., Instituto Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico

fYear

2004

fDate

16-18 Feb. 2004

Firstpage

93

Lastpage

97

Abstract

The paper treats the design of periodical notch filters with a given fundamental frequency and a given notch bandwidth. The method used is based on the design of an allpass filter. The allpass filter is designed by solving a linear system of equations. This procedure reduces the complexity of the design and guarantees the precision on the rejected frequencies. Also presented is a method to improve the notch bandwidth characteristics of the periodical notch filter. Finally, it is shown that the resulting filter has a good behaviour when quantization is applied, if an adequate structure is used for the implementation.

Keywords

all-pass filters; computational complexity; notch filters; quantisation (signal); allpass filter; fundamental frequency; notch bandwidth; notch bandwidth characteristics; periodical notch filter design; quantization; Astrophysics; Bandwidth; Cutoff frequency; Design methodology; Equations; Linear systems; Nonlinear filters; Optical design; Optical filters; Quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Computers, 2004. CONIELECOMP 2004. 14th International Conference on

Print_ISBN

0-7695-2074-X

Type

conf

DOI

10.1109/ICECC.2004.1269555

Filename

1269555