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

摘要：

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.

关键词： Bessel digital filter crossover real time DSP

作者: Zhang Chengyun Chen Minyi Wang Jie

作者单位: Guangzhou University, Guangzhou, Guangdong, 51006, China

会议类型: 国际会议

会议名称: 2010 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2010)(2010年检测技术与机电自动化国际会议)

会议地点: 长沙

会议语种:英文

页码: 954-957

在线出版日期: 2010-03-13（万方平台首次上网日期，不代表论文的发表时间）