<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Spectral density estimation - Page 7 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=spectral_density_estimation&amp;p=6">1.Previous</a><br />
<a accesskey="3" href="page.php?w=spectral_density_estimation&amp;p=8">3.Next</a>
</p>
<p>of reversibility, the Fourier transform is called a representation of the function, in terms of frequency instead of time; thus, it is a <a href="page.php?w=frequency_domain">frequency domain</a> representation.  Linear operations that could be performed in the time domain have counterparts that can often be performed more easily in the frequency domain.  Frequency analysis also simplifies the understanding and interpretation of the effects of various time-domain operations, both linear and non-linear.  For instance, only <a href="page.php?w=nonlinearity">non-linear</a></p><p>
<a accesskey="1" href="page.php?w=spectral_density_estimation&amp;p=6">1.Previous</a><br />
<a accesskey="3" href="page.php?w=spectral_density_estimation&amp;p=8">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
