Design and Implementation of Real Time Crossover Based on Bessel Digital Filter

Author

Zhang Chengyun ; Chen Minyi ; Wang Jie

Author_Institution

Guangzhou Univ., Guangzhou, China

Volume

1

fYear

2010

fDate

13-14 March 2010

Firstpage

954

Lastpage

957

Abstract

Design crossover using Bessel filter is a good selection. However there is no MATLAB function to design digital Bessel filters. In this paper a method for the design of digital Bessel filters is presented. It is based on MATLAB function besselap and zp2sos to obtain the Bessel polynomials. Analog filter transform function Ha(s) can be obtained by search N-th order normalized Bessel polynomials. Transform Ha(s) into H(z) using the bilinear transformation and obtain the general coefficients functions of digital Bessel filters from H(z). The method is validated by MATLAB script. Design example of real time crossover is given to show the practicability of the method.

Keywords

filtering theory; linear algebra; mathematics computing; polynomials; MATLAB function; MATLAB function besselap; bilinear transformation; digital Bessel filters; filter transform function; real-time crossover; search N-th order normalized Bessel polynomial; zp2sos; Design automation; Design methodology; Digital filters; Digital signal processing; Low pass filters; MATLAB; Mathematical model; Mechatronics; Polynomials; Prototypes; Bessel digital filter; DSP; crossover; real time;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2010 International Conference on

Conference_Location

Changsha City

Print_ISBN

978-1-4244-5001-5

Electronic_ISBN

978-1-4244-5739-7

Type

conf

DOI

10.1109/ICMTMA.2010.567

Filename

5458645