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<?xml version="1.0" encoding="UTF-8"?>
<!--
*
* This help file was generated from uencode.sci using help_from_sci().
*
-->
<refentry version="5.0-subset Scilab" xml:id="uencode" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns3="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:scilab="http://www.scilab.org"
xmlns:db="http://docbook.org/ns/docbook">
<refnamediv>
<refname>uencode</refname>
<refpurpose>Performs uniform quantization of the input into 2^n levels</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>
y=uencode(u,n,v,'signflag')
</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
Uniformly quantizes the input vector or n-dimensional array u into 2^n levels in the interval [-v,v]
If v is not specified, its default value is 1
'signflag' is a string that determines the nature of the quantization
If signflag='unsigned' then y contains unsigned integers in the range [0,2^n-1] corresponding to the 2^n levels
If signflag='unsigned' then y contains signed integers in the range [-2^(n-1),2^(n-1)-1] corresponding to the 2^n levels
The size of the integers in y in bits(8,16, or 32) depends on the value of n
If the input lies beyond +/- v it is saturated
Example
y=uencode(-1:0.5:1,3)
y =
</para>
<para>
0 2 4 6 7
Author
Ankur Mallick
References
[1] International Telecommunication Union. General Aspects of Digital Transmission Systems: Vocabulary of Digital Transmission and Multiplexing, and Pulse Code Modulation (PCM) Terms. ITU-T Recommendation G.701. March, 1993.
</para>
</refsection>
<refsection>
<title>See also</title>
<simplelist type="inline">
<member><link linkend="udecode">udecode</link></member>
<member><link linkend="floor">floor</link></member>
</simplelist>
</refsection>
</refentry>
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