Connexions

Sections
You are here: Home » Content » Digital Transmitter: Introduction to Quadrature Phase-Shift Keying

About: Digital Transmitter: Introduction to Quadrature Phase-Shift Keying

Module by: Douglas L. Jones, Swaroop Appadwedula, Matthew Berry, Mark Haun, Jake Janovetz, Michael Kramer, Dima Moussa, Daniel Sachs, Brian Wade. E-mail the authors

View content

Metadata

Name: Digital Transmitter: Introduction to Quadrature Phase-Shift Keying
ID: m10042
Language: English (en)
Summary: Quadrature phase shift keying (QPSK) is a method for transmitting digital data across an analog channel. Data bits are grouped into pairs and represented by a unique waveform, called a symbol. Data may be simulated with a pseudo-noise sequence generator.
Subject: Science and Technology
Keywords: DSP, gray coding, in-phase signal, pseudo-noise generator, QPSK, quadrature phase-shift keying, quadrature signal, signal constellation
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License CC-BY 1.0

Authors: Douglas L. Jones (dl-jones@uiuc.edu), Swaroop Appadwedula (appadwed@uiuc.edu), Matthew Berry (mjberry@uiuc.edu), Mark Haun (markhaun@uiuc.edu), Jake Janovetz (jake@janovetz.com), Michael Kramer (kramer@ifp.uiuc.edu), Dima Moussa (dmoussa@uiuc.edu), Daniel Sachs (sachs@uiuc.edu), Brian Wade (bwade@uiuc.edu)
Copyright Holders: Douglas L. Jones (dl-jones@uiuc.edu), Swaroop Appadwedula (appadwed@uiuc.edu), Matthew Berry (mjberry@uiuc.edu), Mark Haun (markhaun@uiuc.edu), Jake Janovetz (jake@janovetz.com), Michael Kramer (kramer@ifp.uiuc.edu), Dima Moussa (dmoussa@uiuc.edu), Daniel Sachs (sachs@uiuc.edu), Brian Wade (bwade@uiuc.edu)
Maintainers: Mark Butala (butala@uiuc.edu), Matthew Berry (mjberry@uiuc.edu), Douglas L. Jones (dl-jones@uiuc.edu), Ricardo Radaelli-Sanchez (ricky@alumni.rice.edu), Swaroop Appadwedula (appadwed@uiuc.edu), Daniel Sachs (sachs@uiuc.edu), Robert Morrison (rlmorris@uiuc.edu)

Latest version: 2.19 (history)
First publication date: Jun 4, 2001 12:00 am GMT-5
Last revision to module: Feb 25, 2004 11:59 am US/Central

Module XML: m10042_2.19.cnxml

Version History

Version: 2.19 Feb 25, 2004 11:59 am US/Central by Adan Galvan
Changes:
added maintainer

Version: 2.18 Oct 2, 2002 12:00 am GMT-5 by (Unknown)
Changes:
Forgot a figure.

Version: 2.17 Oct 2, 2002 12:00 am GMT-5 by (Unknown)
Changes:
Updated figures.

Version: 2.16 Sep 5, 2002 12:00 am GMT-5 by (Unknown)
Changes:
added a maintainer

Version: 2.15 Aug 27, 2002 12:00 am GMT-5 by (Unknown)
Changes:
updated figures

Version: 2.14 Aug 26, 2002 12:00 am GMT-5 by (Unknown)
Changes:
uploaded figures

Version: 2.13 Aug 26, 2002 12:00 am GMT-5 by (Unknown)
Changes:
edited for style and content 
edited metadata

Version: 2.12 Aug 20, 2002 12:00 am GMT-5 by (Unknown)
Changes:
edited title

Version: 2.11 Aug 20, 2002 12:00 am GMT-5 by (Unknown)
Changes:
edited for content and style
edited metadata

Version: 2.10 Aug 7, 2002 12:00 am GMT-5 by (Unknown)
Changes:
added math markup as per author request

Version: 2.9 Aug 1, 2002 12:00 am GMT-5 by (Unknown)
Changes:
removed content re: c compiler

Version: 2.8 Jun 13, 2002 12:00 am GMT-5 by (Unknown)
Changes:
edited for content (still needs MathML conversion)

Version: 2.7 Jun 11, 2002 12:00 am GMT-5 by (Unknown)
Changes:
Added Maintainers

Version: 2.6 Jun 3, 2002 12:00 am GMT-5 by (Unknown)
Changes:
Split module into three modules.

Version: 2.5 May 22, 2002 12:00 am GMT-5 by (Unknown)
Changes:
fixed cnxns and removed hardcoded numbers in them, changed markup of plusmn, changed unicode pi to pi tag, added cite in a few places

Version: 2.4 Mar 17, 2002 12:00 am US/Central by (Unknown)
Changes:
Removed UI specific refs, corrected version number.

Version: 2.3 Aug 14, 2001 12:00 am GMT-5 by (Unknown)
Changes:
- Uploaded images

Version: 2.2 Aug 14, 2001 12:00 am GMT-5 by (Unknown)
Changes:
- Updated for CNXML 0.3.5

Version: 2.1 Jun 4, 2001 12:00 am GMT-5 by (Unknown)
Changes:
created new module

Version: 2.0 Jun 4, 2001 12:00 am GMT-5 by (Unknown)
Changes:
Added initial template for new module m10042

How to Reuse and Attribute This Content

If you derive a copy of this content using a Connexions account and publish your version, proper attribution of the original work will be automatically done for you.

If you reuse this work elsewhere, in order to comply with the attribution requirements of the license (CC-BY 1.0), you must include

  • the authors' names: Douglas Jones, Swaroop Appadwedula, Matthew Berry, Mark Haun, Jake Janevitz, Michael Kramer, Dima Moussa, Daniel Sachs, Brian Wade
  • the title of the work: Digital Transmitter: Introduction to Quadrature Phase-Shift Keying
  • the Connexions URL where the work can be found: http://cnx.org/content/m10042/2.19/

See the citation section below for examples you can copy.

How to Cite and Attribute This Content

The following citation styles comply with the attribution requirements for the license (CC-BY 1.0) of this work:

American Chemical Society (ACS) Style Guide:

Jones, D.; Appadwedula, S.; Berry, M.; Haun, M.; Janevitz, J.; Kramer, M.; Moussa, D.; Sachs, D.; Wade, B. Digital Transmitter: Introduction to Quadrature Phase-Shift Keying, Connexions Web site. http://cnx.org/content/m10042/2.19/, Feb 25, 2004.

American Medical Assocation (AMA) Manual of Style:

Jones D, Appadwedula S, Berry M, et al. Digital Transmitter: Introduction to Quadrature Phase-Shift Keying [Connexions Web site]. February 25, 2004. Available at: http://cnx.org/content/m10042/2.19/.

American Psychological Assocation (APA) Publication Manual:

Jones, D., Appadwedula, S., Berry, M., Haun, M., Janevitz, J., Kramer, M., Moussa, D., Sachs, D., & Wade, B. (2004, February 25). Digital Transmitter: Introduction to Quadrature Phase-Shift Keying. Retrieved from the Connexions Web site: http://cnx.org/content/m10042/2.19/

Chicago Manual of Style (Bibliography):

Jones, Douglas, Swaroop Appadwedula, Matthew Berry, Mark Haun, Jake Janevitz, Michael Kramer, Dima Moussa, Daniel Sachs, and Brian Wade. "Digital Transmitter: Introduction to Quadrature Phase-Shift Keying." Connexions. February 25, 2004. http://cnx.org/content/m10042/2.19/.

Chicago Manual of Style (Note):

Douglas Jones and others, "Digital Transmitter: Introduction to Quadrature Phase-Shift Keying," Connexions, February 25, 2004, http://cnx.org/content/m10042/2.19/.

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

Jones, D., Appadwedula, S., Berry, M., Haun, M., Janevitz, J., Kramer, M., Moussa, D., Sachs, D., & Wade, B. 2004. Digital Transmitter: Introduction to Quadrature Phase-Shift Keying. Connexions, February 25, 2004. http://cnx.org/content/m10042/2.19/.

Modern Languages Association (MLA) Style Manual:

Jones, Douglas, Swaroop Appadwedula, Matthew Berry, Mark Haun, Jake Janevitz, Michael Kramer, Dima Moussa, Daniel Sachs, and Brian Wade. Digital Transmitter: Introduction to Quadrature Phase-Shift Keying. Connexions. 25 Feb. 2004 <http://cnx.org/content/m10042/2.19/>.