| 摘要: |
| 正交镜象滤波器组(QMF)是一种新型的滤波系统.与普通滤波器组比较,用它实现对信号的频域分析及综合时可大大减少所需的计算量.本文除阐述了双信道及多信道QMF的概念及频响要求之外,还对有关的设计理论及执行方式作了简述.最后对QMF的主要应用领域作了介绍. |
| 关键词: 正交镜象滤波器,设计理论,应用 |
| DOI： |
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| 基金项目: |
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| The theory and applications of quadrature mirror filter banks |
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| Abstract: |
| Quadrature Mirror Filters(QMF)are a new type filter system.Comparison with ordinary filter banks,using QMF to analyze frequency domain of signal and synthesis,the necessary computing quantities can be reduced greatly.With excepion of description concept and requiement of frequency response or dual and multi-channel QMF,design theory and executive mode are also describled in this paper.Finally,the chief application ranges of QMF are introduced. |
| Key words: Quadrature Mirror Filters,Design Theory,Application |
