Exact design of multirate switched-current FIR filters with improved phase linearity

被引：0
|
作者：
Helfenstein, Markus [1 ]
Franca, Jose E. [1 ]
Moschytz, George S. [1 ]
机构：
[1] Swiss Federal Inst of Technology, Zurich, Switzerland
来源：
Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems | 1998年 / 3卷
关键词：
Switched-current decimators;
D O I：
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中图分类号：
学科分类号：
摘要：
The design of linear phase multirate FIR filters for switched-current decimators is presented. The question of finding the decimating factor M for a given filter order N, as function of the timing used, is discussed. It is shown, that exact linearity can be achieved only for special cases of M and N, and that it depends on the chosen timing. Furthermore, we show that modulo arithmetic is a useful tool for analyzing multirate systems.
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页码：351 / 354
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