Design of two-dimensional digital filters via spectral transformations
作者： S. Chakrabarti , S.K. Mitra
关键词: Control theory 、 Algorithm 、 Frequency response 、 Filter design 、 Transfer function 、 Digital filter 、 Rational function 、 Stability (probability) 、 sort 、 Finite impulse response 、 Mathematics
摘要: Complex maps, with domains and codomains consisting of rational transfer functions, have often been used in designing two-dimensional (2-D) digital filters. Such commonly known as spectral transformations, the important property carrying a stable function to another function. This paper presents unified framework for 2-D filters from prescribed magnitude-response specifications using transformations such that magnitude response resultant approximation is sort "best" given specification. It shown there are two basic strategies designs, each its own advantages disadvantages. The design procedures illustrated practical examples. Further, it also all earlier results on filter follow special cases general theory presented here.
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