Blaschke product interpolation and its application to the design of digital filters (Q1096818)
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scientific article; zbMATH DE number 4032277
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Blaschke product interpolation and its application to the design of digital filters |
scientific article; zbMATH DE number 4032277 |
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Blaschke product interpolation and its application to the design of digital filters (English)
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1987
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A new proof is given that n distinct points on the unit circle can be mapped into n arbitrary points on the circle of the complex plane by a finite Blaschke product. A result of this proof is that the mapping can be done with at most n-1 factors in the product. The problem is studied in the context of its application to frequence transformations used to design digital filters.
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finite Blaschke product
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frequence transformations
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digital filters
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