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[vsnet-chat 6588] Re: Fw: Re: Zeeman (Re: vsnet-chat 6572)



> > Back to Fourier: trying to find some new "lectures" in my observatory, I
> > found a complete explanation of Fourier methods and series-->200 pages of
> > pure mathematics:-(((((
>
>    Alternately, there may be a popular explanation in other astronomical
> applications, such as SETI@home (this and other spectral analysis naturally
> incoporate Fourier analysis). 


Also check out other branches of science. One of the best explanations of 
Fourier maths I ever read was in a textbook of seismic techniques for oil 
exploration!

Most references will discuss Fast Fourier Transforms; which can be used if 
your data signals are evenly sampled (in time or frequency steps). Of more 
use to you would be Discrete Fourier Transforms; which can also analyse 
"intermittent" data such as typical variable star observations.



cheers,

-- 

Fraser Farrell

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http://astronomy.trilobytes.com.au
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