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<html> <head><title>Wiener filter</title></head><body bgcolor="#ffffff"><h3>Wiener filter</h3><font color=blue><tt>wiener1 [-f# -w# -o </tt><em>outfile</em><tt> -l# -x# -c# -V# -h] </tt><em> file</em></font><blockquote><br> <font color=blue><tt> -f </tt></font>sampling rate (e.g. in Hz, default 1.)<br> <font color=blue><tt> -w </tt></font>frequency resolution (e.g. in Hz, default 1/N)><br> <font color=blue><tt> -l </tt></font>number of values to be read (all)<br> <font color=blue><tt> -x </tt></font>number of values to be skipped (0)<br> <font color=blue><tt> -c </tt></font><a href=../general.html#column>column to be read</a> (1 or <font color=blue><em>file</em></font>,#)<br> <font color=blue><tt> -o </tt></font><a href=../general.html#outfile>output file name</a>, just<font color=blue><tt> -o </tt></font>means <font color=blue><em>file</em></font><font color=blue><tt>_amp</tt></font><br> <font color=blue><tt> -V </tt></font><a href=../general.html#verbosity>verbosity level</a> (0 = only fatal errors)<br> <font color=blue><tt> -h </tt></font>show this message</blockquote><font color=red><b>Now</b></font> edit <font color=blue><em>file</em><tt>_amp</tt></font> to give desired periodogram<p><font color=blue><tt>wiener2 [-f# -w# -o </tt><em>outfile</em><tt>1 -O outfile -l# -x# -c# -V# -h] </tt><em> file</em></font><blockquote><br> <font color=blue><tt> -f </tt></font>sampling rate (e.g. in Hz, default 1.)<br> <font color=blue><tt> -w </tt></font>frequency resolution (e.g. in Hz, default 1/N)><br> <font color=blue><tt> -l </tt></font>number of values to be read (all)<br> <font color=blue><tt> -x </tt></font>number of values to be skipped (0)<br> <font color=blue><tt> -c </tt></font><a href=../general.html#column>column to be read</a> (1 or <font color=blue><em>file</em></font>,#)<br> <font color=blue><tt> -o </tt></font>output file of wiener1, just<font color=blue><tt> -o </tt></font>means <font color=blue><em>file</em></font><font color=blue><tt>_amp</tt></font><br> <font color=blue><tt> -O </tt></font>final <a href=../general.html#outfile>output file name</a>, just<font color=blue><tt> -O </tt></font>means <font color=blue><em>file</em></font><font color=blue><tt>_wc</tt></font><br> <font color=blue><tt> -V </tt></font><a href=../general.html#verbosity>verbosity level</a> (0 = only fatal errors)<br> <font color=blue><tt> -h </tt></font>show this message</blockquote><!--EOF-->Wiener filter. The first call produces the original periodogram on stdout (orin <font color=blue><em>file</em><tt>_amp</tt></font> with the <fontcolor=blue><tt> -o </tt></font> option). This may then be edited to provide thedesired periodogram. The second call uses <em>file</em> and the output of<font color=blue><tt>wiener1</tt></font> to generate a filtered sequence. Thefinal result is written to stdout, or <fontcolor=blue><em>file</em><tt>_wc</tt></font> with the <font color=blue><tt> -O</tt></font> option). The option setting of <font color=blue><tt> -o</tt></font> should be the same for both calls. Internally, the series ispadded with zeroes in order to get a FFT-able number of points. A warning isissued if applicable. It is recommended to plot the spectral estimator computedby <font color=blue><tt>wiener1</tt></font> in order to adjust the frequencyresolution <font color=blue><tt>-w</tt></font> properly.<p><a href="../index.html">Table of Contents</a> * <a href="../../index.html" target="_top">TISEAN home</a></body></html>⌨️ 快捷键说明
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