摘要
结合多采样率滤波器和多阶滤波器的优点,给出了多阶多采样率滤波器的设计方法和实现过程。该方法设计的滤波器,既实现了多采样率输出的应用需求,又提高了效率,节省了空间。多阶滤波器设计方法可有效减少滤波器系数长度,在运算效率和占用空间方面比单阶设计方法具有显著的提高。
A new method to design and implement multistage and multirate filter was reported in this paper. The filter designed can not only satisfy the requirement for multirate but also improve efficiency and decrease storage space. The multistage design method can decrease the filter length and more efficient than single-stage, and it have significant advantage in computa tional efficiency and storage space.
出处
《地震地磁观测与研究》
2004年第4期61-66,共6页
Seismological and Geomagnetic Observation and Research
基金
中国地震局"十五"科技攻关项目(2001BA601803-02-03)
关键词
多阶
多采样率
滤波器
multistage, multirate, filter
