| 引用本文: | 高和平,黄朝耿,李刚,郭淑琴,徐红.高鲁棒性格型无限脉冲响应数字滤波器结构设计[J].控制理论与应用,2011,28(7):1025~1030.[点击复制] |
| GAO He-ping,HUANG Chao-geng,LI Gang,GUO Shu-qin,XU Hong.Lattice infinite impulse response digital filter with high robustness[J].Control Theory and Technology,2011,28(7):1025~1030.[点击复制] |
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| 高鲁棒性格型无限脉冲响应数字滤波器结构设计 |
| Lattice infinite impulse response digital filter with high robustness |
| 摘要点击 1788 全文点击 991 投稿时间：2010-02-02 修订日期：2010-06-11 |
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| DOI编号 10.7641/j.issn.1000-8152.2011.7.CCTA100133 |
| 2011,28(7):1025-1030 |
| 中文关键词 数字滤波器 格型结构 信号功率比 有限字长 |
| 英文关键词 digital filters lattice structures signal power ratio finite word length |
| 基金项目 国家自然科学基金资助项目(60872111, 60977020). |
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| 中文摘要 |
| 针对如何设计低复杂度并对有限字长效应具有高鲁棒性的滤波器结构问题, 提出了一种新型的格型无限脉冲响应(IIR)数字滤波器结构. 对于一个N阶滤波器, 该结构具有2N个不同的位置供输入信号选择注入. 通过选择不同的位置进行注入使滤波器结构的信号功率比最小. 当采用单乘法器格型单元时, 提出的新结构只需2N+1个乘法器便能实现一个N阶IIR滤波器. 仿真结果表明, 与传统的格型滤波器结构相比, 新结构不仅需要更少的乘法器, 而且具有更小的信号功率比. |
| 英文摘要 |
| A novel lattice filter structure is derived for infinite impulse response(IIR) digital filters with low complexity and high robustness against finite-word-length effects. For an N-th order filter, there are 2N nodes for the input signals to select to minimize the signal power ratio. The new structure using the one-multiplier elementary lattice possesses only (2N + 1) multipliers. Compared with traditional lattice structures in simulation, the proposed structure not only has fewer multipliers, but also yields much smaller signal power ratio. |
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