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| author | Sunil Shetye | 2018-07-25 17:11:09 +0530 |
|---|---|---|
| committer | Sunil Shetye | 2018-07-26 23:50:17 +0530 |
| commit | 1251f70aa3442736ce6fd9c4fb7fbce412af5a52 (patch) | |
| tree | 360311ffaf6151c5066439f481e8ac38cfd047b9 /help/en_US/intfilt.xml | |
| parent | 9ca7882cee16ad48b18df989e8300c697010e55a (diff) | |
| download | FOSSEE-Signal-Processing-Toolbox-1251f70aa3442736ce6fd9c4fb7fbce412af5a52.tar.gz FOSSEE-Signal-Processing-Toolbox-1251f70aa3442736ce6fd9c4fb7fbce412af5a52.tar.bz2 FOSSEE-Signal-Processing-Toolbox-1251f70aa3442736ce6fd9c4fb7fbce412af5a52.zip | |
code changes by Kartik Hegde during FOSSEE Fellowship 2018
Diffstat (limited to 'help/en_US/intfilt.xml')
| -rw-r--r-- | help/en_US/intfilt.xml | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/help/en_US/intfilt.xml b/help/en_US/intfilt.xml index a674813..29c93f6 100644 --- a/help/en_US/intfilt.xml +++ b/help/en_US/intfilt.xml @@ -17,7 +17,63 @@ <refnamediv> <refname>intfilt</refname> - <refpurpose></refpurpose> + <refpurpose>The "intfilt" function estimate Interpolated FIR Filter Design</refpurpose> </refnamediv> +<refsynopsisdiv> + <title>Calling Sequence</title> + <synopsis> + h=intfilt(R,L,freqmult) + [h a]=intfilt(R,L,freqmult) + + </synopsis> +</refsynopsisdiv> + +<refsection> + <title>Parameters</title> + <variablelist> + <varlistentry><term>R:</term> + <listitem><para> Samples. It should be numeric</para></listitem></varlistentry> + <varlistentry><term>L:</term> + <listitem><para> bandlimited interpolation samples. It must be nonzero.</para></listitem></varlistentry> + <varlistentry><term>freqmult:</term> + <listitem><para> bandlimitedness of ALPHA times the Nyquist frequency. It can be numeric or character ('B' or 'L', B is length (N+1)*L-1 for N odd and (N+1)*L for N even) </para></listitem></varlistentry> + + </variablelist> +</refsection> + +<refsection> + <title>Description</title> + <para> +"h=intfilt(R,L,freqmult)" designs a linear phase FIR filter. This function does ideal bandlimited interpolation using the nearest 2*L nonzero samples, when used on a sequence inserted with l-1 consecutive zeros between every l samples. It assumes an original bandlimitedness of "freqmult" times the Nyquist frequency. +</para> +</refsection> + +<refsection> + <title>Example 1</title> + <programlisting role="example"><![CDATA[ +h1=intfilt(2,3,'l'); +//EXPECTED OUTPUT : +// -0.0625 0. 0.5625 1. 0.5625 0. -0.0625 + + ]]></programlisting> +</refsection> + +<refsection> + <title>Example 2</title> + <programlisting role="example"><![CDATA[ +h1=intfilt(4,1,1); +//EXPECTED OUTPUT : +// 0.3001054 0.6366198 0.9003163 1. 0.9003163 0.6366198 0.3001054 + + ]]></programlisting> +</refsection> + +<refsection> + <title>Authors</title> + <simplelist type="vert"> + <member>Jitendra Singh</member> + </simplelist> +</refsection> + </refentry> |