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FOURIER-POWER-SPECTRUM

Fourier transforms the current spectrum (assumed to be real-symmetric about the first channel) and sets each channel equal to $2\times\log_{10}$ of the absolute magnitude of the result. This is an extremely sensitive way of looking for systematic effects such as baseline ripple.

Examples: 

    >> fourier-power-spectrum<CR>
    ..

\begin{figure} % latex2html id marker 1703 \psfig{psfile=f-p-s.ps hoffset=60 hsc... ...e first channel. It is not assumed to repeat however.} }\end{center}\end{figure}


Jamie Leech 2004-08-16