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About: Laboratory generation of QPSK

Module by: B Kanmani. E-mail the author

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Name: Laboratory generation of QPSK
ID: m32044
Language: English (en)
Summary: Quadrature phase shift keying (QPSK), is a form of digital modulation. Demonstration of this modulation scheme in the laboratory is usually using Digital communication modules, or using trainer kits, or using the simulated platform of Matlab or the LabView. The attempt in this module is to demonstrate the generation of QPSK, using two widely available linear ICs: the sample-and-hold LF-398 and the operational amplifier LM-741, making it suitable for discrete component and linear IC implementation of QPSK in a typical Under-graduate laboratory course. The observed outputs at different stages of the modulator are given.
Subject: Science and Technology
Keywords: digital modulation, practical implementation, QPSK
License: Creative Commons Attribution License CC-BY 3.0

Authors: B Kanmani (
Copyright Holders: B Kanmani (
Maintainers: B Kanmani (

Latest version: 1.1 (history)
First publication date: Sep 20, 2009 10:40 pm -0500
Last revision to module: Sep 20, 2009 10:54 pm -0500


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Version History

Version: 1.1 Sep 20, 2009 10:54 pm -0500 by B Kanmani
New Module

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