| 二维半平面线性相位FIR数字滤波器的最小二乘设计方法 |
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| 引用本文： | 朱卫平.二维半平面线性相位FIR数字滤波器的最小二乘设计方法[J].信号处理,1996(1). |
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| 作者姓名： | 朱卫平 |
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| 作者单位： | 南京邮电学院 |
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| 基金项目： | 国家教委留学回国人员资助 |
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| 摘 要： | 本文研究了二维线性相位实系数FIR数字滤波器的最小二乘设计问题，导出了滤波器系数的闭式解。运用给出的计算公式可方便地计算滤波器的系数，而不必对矩阵进行数值求逆运算也不需要复杂的优化过程．设计实例表明本文给出的方法程序简单、计算时间极短．
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| 关 键 词： | 数字滤波器 滤波器设计 最小二乘逼近 |
A Least-Square Design Method for 2-D Linear-Phase FIR Digital Filters |
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| Zhu Weiping.A Least-Square Design Method for 2-D Linear-Phase FIR Digital Filters[J].Signal Processing,1996(1). |
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| Authors: | Zhu Weiping |
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| Affiliation: | Zhu Weiping |
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| Abstract: | In this paper, the least-Square design problem of 2-D linear-phase real FIR digital filters is studied, resulting in a closed-form solution for filtor coefficients. Using the derived expressions, the coefficients of the designed filter can easily be evaluated, making it unnecessary to either the numerical calculation for matrix inversion or the complicated optimization procedure. It is shown through design examples that the proposed method enjoys simple design procedure and very short computational time. |
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| Keywords: | digital filters filter design least-square approximation |
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