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<?xml version="1.0" encoding="UTF-8"?>
<!--
*
* This help file was generated from finddelay.sci using help_from_sci().
*
-->
<refentry version="5.0-subset Scilab" xml:id="finddelay" 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>finddelay</refname>
<refpurpose>This function returns the estimated delay between two input signals using crosscorrelation.</refpurpose>
</refnamediv>
<refsection>
<title>Description</title>
<para>
D = FINDDELAY(X,Y), returns estimated Delay D between X
and Y. D is positive implies Y is delayed with respect to X and vice versa.
If X, Y are matrices, then D is a row vector corresponding to delay between columns of X and Y
</para>
<para>
D = FINDDELAY(...,MAXLAG), uses MAXLAG as the maximum correlation
window size used to find the estimated delay(s) between X and Y:
</para>
<para>
> If MAXLAG is an integer-valued scalar, and X and Y are row or column
vectors or matrices, the vector D of estimated delays is found by
cross-correlating (the columns of) X and Y over a range of lags
-MAXLAG:MAXLAG.
> If MAXLAG is an integer-valued row or column vector, and one input is vector
and another be matirx (let X is a row or column vector ,
and Y is a matrix) then the vector D of estimated delays is found by
cross-correlating X and column J of Y over a range of lags
-MAXLAG(J):MAXLAG(J), for J=1:Number of columns of Y.
> If MAXLAG is an integer-valued row or column vector, and X and Y are
both matrices. then vector D of estimated delays is found by
cross-correlating corresponding columns of X and Y over a range of lags
-MAXLAG(J):MAXLAG(J).
</para>
<para>
By default, MAXLAG is equal to MAX(LX,LY)-1 for vectors,
</para>
<para>
</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
X = [ 0 0 1 2 3 ];
Y = [ 0 0 0 1 2 3];
D = finddelay(X,Y,2)
disp(D)
X = [ 0 1 0 0 ; 1 0 2 1 ;0 0 0 2 ];
Y = [ 0 0 1 0 ;1 0 0 2 ; 0 0 0 0 ];
D = finddelay(X,Y)
disp(D)
]]></programlisting>
</refsection>
<refsection>
<title>Authors</title>
<simplelist type="vert">
<member>Pola Lakshmi Priyanka, IIT Bombay</member>
</simplelist>
</refsection>
</refentry>
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