| M带均匀最大抽取滤波器组 |
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| 引用本文： | 刘泽民, 李学斌. M带均匀最大抽取滤波器组[J]. 电子与信息学报, 2003, 25(3): 326-332. |
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| 作者姓名： | 刘泽民 李学斌 |
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| 作者单位： | 北京邮电大学电信工程学院,北京,100876 |
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| 基金项目： | 国家“863”计划基金(863-317-04-11-99) |
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| 摘 要： | 采用同时考虑幅度和延时特性的IIR型通用参数滤波器作为构件组成滤波器组,以单个滤波器特性相互叠加为基础,设计时使相邻滤波器在交界频率点满足一定条件,并对各过渡带区的组合特性施以优化和采取抗混叠、串话措施,便可做到以一定精度逼近于信号完全重构的滤波器组,是新的设计理论和方法。
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| 关 键 词： | 滤波器组 通用参数滤波器 IIR型滤波器 混叠失真 串话失真 |
| 收稿时间： | 2001-06-15 |
| 修稿时间： | 2001-06-15 |
M-band uniform maximally decimated filter banks |
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| Liu Zemin, Li Xuebin. M-band uniform maximally decimated filter banks[J]. Journal of Electronics & Information Technology, 2003, 25(3): 326-332. |
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| Authors: | Liu Zemin Li Xuebin |
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| Affiliation: | School of Telecom. Eng., Beijing Univ. of Posts and Telecom.,Beijing 100876 China |
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| Abstract: | Based on overlapping individual filter character, IIR general parameter filters are used as units of filterbank, whose amplitude and delay characters are all considered. In designing, let filter frequency character in passband region meet the demand, then optimizing the integrated frequency character in transition region with some anti-aliasing or anti-crosstalk measures used, the resulting filter bank can be nearly perfect reconstruction in certain precision. This is a new theory and method of design for filter banks.
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