14. Design of Digital Filters

By Sadasivan Puthusserypady, Technical University of Denmark, Denmark

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Published: 31 Mar 2021

© 2021 Sadasivan Puthusserypady


A digital filter is a LTI discrete-time system that is realized using finite precision arithmetic. The design of digital filters involves three basic and independent steps: • The specification of the desired properties of the system. • The approximation of these specifications using a causal discrete-time system. • The realization of these specifications using finite precision arithmetic.