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About: IIR Filter Structures

Module by: Douglas L. Jones. E-mail the author

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Name: IIR Filter Structures
ID: m11919
Language: English (en)
Summary: The Direct Forms I and II, the Transpose Form, Parallel Form, and Cascade Form are the most common basic structures for implementing IIR filters.
Subject: Science and Technology
Keywords: cascade form, direct form, IIR Filters, parallel form, structures, transpose form
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License CC-BY 1.0

Authors: Douglas L. Jones (
Copyright Holders: Douglas L. Jones (
Maintainers: Douglas L. Jones (, Kyle Clarkson (

Latest version: 1.2 (history)
First publication date: Jul 14, 2003 1:42 pm -0500
Last revision to module: Dec 27, 2004 7:58 am -0600


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XML: m11919_1.2.cnxml XML that defines the structure and contents of the module, minus any included media files. Can be reimported in the editing interface. Learn more.

Version History

Version: 1.2 Dec 27, 2004 7:58 am -0600 by Douglas L. Jones
Minor additions to the text and typo fixes.

Version: 1.1 May 11, 2004 11:56 am -0500 by Kyle Clarkson
First Submission

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American Chemical Society (ACS) Style Guide:

Jones, D. IIR Filter Structures, OpenStax-CNX Web site., Dec 27, 2004.

American Medical Assocation (AMA) Manual of Style:

Jones D. IIR Filter Structures [OpenStax-CNX Web site]. December 27, 2004. Available at:

American Psychological Assocation (APA) Publication Manual:

Jones, D. (2004, December 27). IIR Filter Structures. Retrieved from the OpenStax-CNX Web site:

Chicago Manual of Style (Bibliography):

Jones, Douglas. "IIR Filter Structures." OpenStax-CNX. December 27, 2004.

Chicago Manual of Style (Note):

Douglas Jones, "IIR Filter Structures," OpenStax-CNX, December 27, 2004,

Chicago Manual of Style (Reference, in Author-Date style):

Jones, D. 2004. IIR Filter Structures. OpenStax-CNX, December 27, 2004.

Modern Languages Association (MLA) Style Manual:

Jones, Douglas. IIR Filter Structures. OpenStax-CNX. 27 Dec. 2004 <>.