| 高阶数字图形均衡器的设计 |
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| 引用本文： | 黄忠兵,谭飚. 高阶数字图形均衡器的设计[J]. 宁波工程学院学报, 2011, 23(1): 79-82 |
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| 作者姓名： | 黄忠兵 谭飚 |
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| 作者单位： | 宁波工程学院,浙江,宁波,315211 |
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| 基金项目： | 2009年浙江省大学生科技创新活动计划(新苗人才计划)项目 |
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| 摘 要： | 本文描述了基于高阶峰值滤波器设计数字图形均衡器的设计方法,并给出了一个设计实例。提出了一种新的模拟高阶低通shelving滤波器原型,并描述了从模拟低通shelving滤波器到数字峰值滤波器的频率转换方法。数字图形均衡器的实现采用二阶和四阶数字峰值滤波器的级联结构。设计实例的实验结果表明,由于高阶滤波器具有更平坦的通带和陡降特性,一个频段的通带增益基本与其它频段的增益无关。
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| 关 键 词： | 图形均衡器 高阶峰值滤波器 频率转换 |
Design of High-order Digital Graphic Equalizer |
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| HUANG Zhong-bing,TAN Biao. Design of High-order Digital Graphic Equalizer[J]. Journal of Ningbo University of Technology, 2011, 23(1): 79-82 |
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| Authors: | HUANG Zhong-bing TAN Biao |
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| Affiliation: | HUANG Zhong-bing TAN Biao(Ningbo University of Technology,Ningbo,Zhejiang,315016,China) |
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| Abstract: | A straight-forward design of digital graphic equalizer based on high-order peak filters is presented in this paper.A novel high-order lowpass shelving filter prototype is proposed,and frequency transformation method from analog lowpass shelving filter to digital peak filter is described.Digital graphic equalizer is implemented using cascade structure of second-order and fourth-order digital peak filter.The results of the design example have shown that the passband gain in one band is almost completely indep... |
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| Keywords: | graphic equalizer high-order peak filter frequency transformation |
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