摘要
在深入分析GB T 32 4 1- 1998规定的 1 3倍频程滤波器性能要求的基础上 ,建立了面向MATLAB信号处理工具箱中设计FIR数字滤波器有关函数参数接口的数学模型 ,并通过编程完成了 1 3倍频程数字滤波器设计 .验证表明 ,设计结果的各项性能指标均达到国标规定的 1级滤波器精度要求 .
After deeply analyzing the stipulation for third-octave band filters in GB/T 3241-1998, this paper presented a mathematical model which matched the parameters' interface of functions used to design FIR digital filter in the MATLAB signal processing box, and third-octave band filters were designed through programming. The evaluation showed that the designed result met the requirements of type 1 precision.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
2003年第2期160-165,共6页
Journal of Fuzhou University(Natural Science Edition)
