AN IMPROVED NONCAUSAL FILTERING TECHNIQUE

Autor:	P.M. Chau, S.R. Powell
Rok vydání:	2005
Předmět:	Filter design Finite impulse response Control theory Filter (signal processing) Causal filter Infinite impulse response Digital filter Linear filter Mathematics Root-raised-cosine filter
Zdroj:	1990 Conference Record Twenty-Fourth Asilomar Conference on Signals, Systems and Computers, 1990..
DOI:	10.1109/acssc.1990.523300
Popis:	This paper presents a time reversal based noncausal IIR filtering scheme which offers significantly fewer operations than similarly performing causal approaches. This new scheme improves on previous multi-pass approaches by using single-pass overlap- save based block processing for on-line noncausal filtering of infinite length inputs. Computer simulations are used to verify the expected magnitude amd phase response of an example noncau;sal filter. Nine filter examples are used to directly compare the proposed noncausal filter to a standard causal FIR approach in terms of multiplication operations and roundoff noise.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3a596e8c88e2fc30eb9440824ebdf7f https://doi.org/10.1109/acssc.1990.523300 Zobrazit plný text záznamu