November 2010
Intermediate to advanced
288 pages
8h 34m
English
book
Notes on Digital Signal Processing: Practical Recipes for Design, Analysis and Implementation
by C. Britton Rorabaugh
Content preview from Notes on Digital Signal Processing: Practical Recipes for Design, Analysis and Implementation
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Note 39. Characterizing Analog Filters
Several of the most popular techniques for designing IIR filters are based on transformations or mappings of analog prototype filters into digital filters. Often these prototype filters are classic filter designs such as Butterworth, Chebyshev, or elliptic. These classical filters are usually presented in the literature as normalized lowpass filters that must be denormalized and possibly transformed into other band configurations before they can be used as protoypes for IIR filters. This note covers techniques that are used to characterize and frequency-scale classical analog filters.
Neglecting imperfections in the components used to implement them, classical analog filters are considered to be time-invariant, ...
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