摘要
针对在大抽取率的情况下,采样率变换系统对抗混叠滤波器性能指标的高要求,讨论了采用多级变换实现大抽取率采样变换的工作原理,并利用MATLAB对多种分级组合时滤波器的阶数和乘法运算量进行了仿真分析,最后给出了实现多级采样率变换系统优化设计的基本原则.
The realization principle of large extraction rate sampling transform by multi-stage sampling rate conversion is discussed for large decimation rate.The order and multiplication computation of various combination filters are calculated in virtue of the Matlab language.Finally,the basic realization and optimization principle of multi-stage sampling rate conversion system are proposed.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2010年第3期50-52,共3页
Journal of South China Normal University(Natural Science Edition)
基金
广东省科技攻关资助项目(2008B0080701053)
广东省产学研资助项目(2009B090300336)
关键词
采样率变换
抗混叠滤波器
多级系统
sample rate conversion
anti-aliasing filter
multi-level system
