Design of 2-D IIR filters using a new digital spectral transformation

Design of 2-D IIR filters using a new digital spectral transformation
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使用新的数字光谱变换设计二维 IIR 滤波器

DOI:
10.1109/iscas.1995.521521
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发表时间:
1995
期刊:
Proceedings of ISCAS'95 - International Symposium on Circuits and Systems
影响因子:
--
通讯作者:
B. Shenoi
B. Shenoi
中科院分区:
--
文献类型:
--
作者:
R. Hegde;B. Shenoi

文献摘要

被引文献

相似文献

本文提出了一种数字谱变换(DST)方法,用于设计二维IIR数字滤波器,其通带区域为圆形和椭圆形。该方法保证了二维滤波器的稳定性,并且不需要繁琐的优化技术。相同的DST可用于近似恒定群延迟响应。在本文中,提出了一种新的DST设计这些过滤器使用相同的设计程序,但它产生一个显着较小的值的误差近似的圆形和椭圆形轮廓的/spl ω//sub 1/-/spl ω//sub 2/平面。包括一些说明性的例子。
A Digital Spectral Transformation (DST) has been proposed for the design of 2-D IIR digital filters with a circular and an elliptical region for the passband region of the lowpass filter. This method guaranteed stability of the 2-D filter and did not resort to tedious optimization techniques. The same DST can be used to approximate the constant group delay response. In this paper, a new DST is proposed to design these filters using the same design procedure but it yields a significantly smaller value for the error in the approximation to the circular and elliptical contours in the /spl omega//sub 1/-/spl omega//sub 2/ plane. Some illustrative examples are included.