Synthesis of 2-D linear phase digital filters
Synthesis of 2-D linear phase digital filters
复制标题
二维线性相位数字滤波器的综合
DOI：
10.1109/31.101270
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
C. Zhang
中科院分区：
文献类型：
--
作者：
G. Gu;B. Shenoi;C. Zhang
根据 2-D 传递函数的近似，研究了二维 (2-D) 线性相位数字滤波器的合成。在一定的温和频域条件下，建立了非有理二维传递函数逼近的收敛结果。结果表明，二维线性相位FIR（有限脉冲响应）数字滤波器的综合可以转化为满足收敛条件的等价近似。然后基于 FIR 模型合成二维线性相位 IIR（无限脉冲响应）数字滤波器。给出了几个例子来说明合成技术。 >
The synthesis of two-dimensional (2-D) linear-phase digital filters is studied in terms of approximation of 2-D transfer functions. A convergence result is established for the approximation of nonrational 2-D transfer functions under a certain mild frequency domain condition. It is shown that the synthesis of 2-D linear-phase FIR (finite impulse response) digital filters can be transformed into an equivalent approximation for which the convergence condition is satisfied. A 2-D linear-phase IIR (infinite impulse response) digital filter is then synthesized based on an FIR model. Several examples are given to illustrate the synthesis technique. >