摘要
本文给出了一种带双窗的频域全相位数字滤波器结构,经过理推导得到与其等效三种实现形式。对系统特性的分析结果表明,双窗全相位数字滤波器在通带和阻带内的波纹基本消除并且可以方便地设计各种滤波器;最后通过仿真实验,验证了理论推导的正确性和全相位数字滤波器的实用性。
In this paper a novel all phase digital filter with dual windows in frequency domain is presented, other three
equivalent structures of which are theoretically deduced out. By analysis of the properties of all phase digital filter, the results
indicate that ripples across the pass and stop band are almost eliminated and such filter can be easily designed into all kinds of
filters. Finally the experimental results prove both the validity and usefulness of all phase digital filter.
出处
《信号处理》
CSCD
2004年第3期231-235,共5页
Journal of Signal Processing
基金
国家自然科学基金(No.60172062
No.60373028)
霍英东青年教师基金(No.81053)
留学归国人员科研启动基金
关键词
DFT域
全相位数字滤波器
设计
可行性
weighted overlapping
all phase
linear phrase
finite impulse response (FIR)
