| 基于最大线性约束的FIR数字中频微分器的设计 |
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| 引用本文： | 周蓉蓉,谷亚林.基于最大线性约束的FIR数字中频微分器的设计[J].连云港师范高等专科学校学报,2009,26(1):106-108. |
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| 作者姓名： | 周蓉蓉 谷亚林 |
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| 作者单位： | 1. 泰州师范高等专科学校数理系,江苏,泰州,225300
2. 南京理工大学电光院,江苏,南京,210094 |
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| 摘 要： | 最大线性数字微分器是指在中心频率的一段窄频内具有高度精确线性的数字微分器,文中应用数字微分器幅度响应的最大微分线性度约束条件,设计了中心频率在π/2处的具有精确微分性质的Ⅲ型线性相位的数字微分器,说明了设计方法,给出了设计结果.
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| 关 键 词： | 数字微分器(DD) FIR数字滤波器 线性相位 最大线性度 |
Mid- band Digital Differentiator Design Based on Maximal Linearity Constraints |
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| ZHOU Rong-rong,GU Ya-lin.Mid- band Digital Differentiator Design Based on Maximal Linearity Constraints[J].Journal of Lianyungang Teachers College,2009,26(1):106-108. |
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| Authors: | ZHOU Rong-rong GU Ya-lin |
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| Abstract: | Maximally linear digital differentiators (DDs) are known for high accuracy in narrow frequency bands centered at the frequency for which they are designed. In this paper, the maximal linearity constraints to the magnitude response of a differentiator is applied to design a Type Ⅲ linear phase DD at the center frequency . The design method is brought out and the result is also given. |
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| Keywords: | Digital differentiator (DD) finite- impulse- response (FIR) digital filter linear phase maximally linear |
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