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About: Band-Limited Pulse Generator

Module by: Ed Doering

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Name: Band-Limited Pulse Generator
ID: m15457
Language: English (en)
Summary: Subtractive synthesis techniques often require a wideband excitation source such as a pulse train to drive a time-varying digital filter. Traditional rectangular pulses have theoretically infinite bandwidth, and therefore always introduce aliasing noise into the input signal. A band-limited pulse (BLP) source is free of aliasing problems, and is more suitable for subtractive synthesis algorithms. The mathematics of the band-limited pulse is presented, and a LabVIEW VI is developed to implement the BLP source. An audio demonstration is included.
Subject: Science and Technology
Keywords: aliasing, band-limited pulse, LabVIEW, pulse train, subtractive synthesis, truncated Fourier series
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License (CC-BY 2.0)
Authors: Ed Doering (doering@rose-hulman.edu)
Copyright Holders: Ed Doering (doering@rose-hulman.edu)
Maintainers: Ed Doering (doering@rose-hulman.edu), Erik Luther (erik.luther@ni.com), Sam Shearman (sam.shearman@ni.com)
Editors: Erik Luther (erik.luther@ni.com), Sam Shearman (sam.shearman@ni.com)
Version: 1.3 (history)
Created: Sep 28, 2007 10:09 am GMT-5
Revised: Mar 17, 2008 9:31 pm GMT-5

Version History

Version: 1.3 Mar 17, 2008 9:31 pm GMT-5 by Ross J. Reedstrom
Changes: 
fixup audio in flash movie files
Version: 1.2 Nov 2, 2007 12:21 pm GMT-5 by Ed Doering
Changes: 
Add TripleDisplay link
Version: 1.1 Nov 2, 2007 11:57 am GMT-5 by Ed Doering
Changes: 
Initial release

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American Chemical Society (ACS) Style Guide:

Doering, E. Band-Limited Pulse Generator, Connexions Web site. http://cnx.org/content/m15457/1.3/, Mar 17, 2008.

American Medical Assocation (AMA) Manual of Style:

Doering E. Band-Limited Pulse Generator [Connexions Web site]. March 17, 2008. Available at: http://cnx.org/content/m15457/1.3/.

American Psychological Assocation (APA) Publication Manual:

Doering, E. (2008, March 17). Band-Limited Pulse Generator. Retrieved from the Connexions Web site: http://cnx.org/content/m15457/1.3/

Chicago Manual of Style (Bibliography):

Doering, Ed. "Band-Limited Pulse Generator." Connexions. March 17, 2008. http://cnx.org/content/m15457/1.3/.

Chicago Manual of Style (Note):

Ed Doering, "Band-Limited Pulse Generator," Connexions, March 17, 2008, http://cnx.org/content/m15457/1.3/.

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

Doering, E. 2008. Band-Limited Pulse Generator. Connexions, March 17, 2008. http://cnx.org/content/m15457/1.3/.

Modern Languages Association (MLA) Style Manual:

Doering, Ed. Band-Limited Pulse Generator. Connexions. 17 Mar. 2008 <http://cnx.org/content/m15457/1.3/>.