Design of two-dimensional pseudorotated digital filters using concept of generalized immittance converter
A new realization procedure based on the concept of the generalized immittance converter (GIC) is proposed for two-dimensional (2D) pseudorotated digital filters that have circularly symmetric magnitude response characteristics. By applying a suitable transformation to a one-dimensional stable discr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
2003
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| Subjects: | |
| Online Access: | http://shdl.mmu.edu.my/2556/ http://shdl.mmu.edu.my/2556/1/1819.pdf |
| Summary: | A new realization procedure based on the concept of the generalized immittance converter (GIC) is proposed for two-dimensional (2D) pseudorotated digital filters that have circularly symmetric magnitude response characteristics. By applying a suitable transformation to a one-dimensional stable discrete transfer function, the 2D discrete transfer function of the corresponding pseudorotated filter is obtained. This transfer function is then realized by using a direct computer-based method. It is shown that four types of GIC pseudorotated filter structures can be obtained by interconnecting a few specific types of digital modules. The modularity and regularity nature of these filters make them attractive for very large-scale integration implementation. |
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