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The Use of the Fornasini-Marchesini Second Model in the Frequency-Domain Design of 2-D Digital Filters
Takao HINAMOTO Hideki TODA
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/25
Print ISSN: 0916-8508
Type of Manuscript: INVITED PAPER (Special Section on Multidimensional Signal Processing)
2-D filter design, Fornasini-Marchesini second model, frequency domain, guaranteed stability, external description,
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Based on the Fornasini-Marchesini second model, an efficient algorithm is developed to derive the characteristic polynomial and the inverse of the system matrix from the state-space parameters. As a result, the external description of the Fornasini-Marchesini second model is clarified. A technique for designing 2-D recursive digital filters in the frequency domain is then presented by using the Fornasini-Marchesini second model. The resulting filter approximates both magnitude and group delay specifications and its stability is always guaranteed. Finally, three design examples are given to illustrate the utility of the proposed technique.