<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE document PUBLIC "-//CNX//DTD CNXML 0.5 plus MathML//EN" "http://cnx.rice.edu/cnxml/0.5/DTD/cnxml_mathml.dtd">
<document xmlns="http://cnx.rice.edu/cnxml" xmlns:md="http://cnx.rice.edu/mdml/0.4" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:bib="http://bibtexml.sf.net/" id="new0">
  <name>Preface: Signals and Systems - DFT First</name>
  <metadata>
  <md:version>1.5</md:version>
  <md:created>2003/07/24 10:23:57 GMT-5</md:created>
  <md:revised>2005/02/03 23:18:18.068 US/Central</md:revised>
  <md:authorlist>
      <md:author id="richb">
      <md:firstname>Richard</md:firstname>
      <md:othername>G.</md:othername>
      <md:surname>Baraniuk</md:surname>
      <md:email>richb@rice.edu</md:email>
    </md:author>
  </md:authorlist>

  <md:maintainerlist>
    <md:maintainer id="prash">
      <md:firstname>Prashant</md:firstname>
      
      <md:surname>Singh</md:surname>
      <md:email>prash@ece.rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="charlet">
      <md:firstname>Charlet</md:firstname>
      
      <md:surname>Reedstrom</md:surname>
      <md:email>charlet@rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="mariyah">
      <md:firstname>Mariyah</md:firstname>
      
      <md:surname>Poonawala</md:surname>
      <md:email>mariyah@rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="richb">
      <md:firstname>Richard</md:firstname>
      <md:othername>G.</md:othername>
      <md:surname>Baraniuk</md:surname>
      <md:email>richb@rice.edu</md:email>
    </md:maintainer>
  </md:maintainerlist>
  
  <md:keywordlist>
    <md:keyword>Fourier series</md:keyword>
    <md:keyword>Fourier transform</md:keyword>
    <md:keyword>Hilbert space</md:keyword>
    <md:keyword>linear algebra</md:keyword>
    <md:keyword>linear system</md:keyword>
    <md:keyword>signal</md:keyword>
    <md:keyword>signal processing</md:keyword>
    <md:keyword>system</md:keyword>
  </md:keywordlist>

  <md:abstract>This module overviews the course Elec 301 - Signals and Systems -  as taught at
Rice University in Fall 2003.</md:abstract>
</metadata>

  <content>
    <para id="para1">
In this course, we will learn about signals and systems for processing signals.  
We will rely heavily on ideas from linear algebra and Hilbert space
to unify our treatment of the four 
fundamental classes of signals - the four combinations of discrete-time vs. continuous-time and periodic/finite vs. aperiodic/infinite.  
</para>   

<para id="para2">
In contrast to most textbooks, we begin
with the discrete Fourier transform for discrete-time, periodic/finite signals.
Hence, this course could be subtitled: <emphasis>DFT First</emphasis>.  
For a more standard treatment starting with continuous-time signals, 
see the Connexions course <link src="http://cnx.rice.edu/content/col10064/latest/">Signals and Systems</link>
which was used until 2002 and in 2004.
</para>   

<para id="para3">
This course also marks the introduction of 
<link src="http://ni.com/labview">National Instruments <emphasis>Labview VIs</emphasis></link>
to the Connexions system.  Look for them in select modules - they are designed
to help students visualize important concepts.
</para>   

<para id="para4">
Comments, typos, and suggestions are welcome.
</para>   

  </content>
  
</document>
