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RE: [ATM] Accuracy of Mahajan's approximation for Strehl ratio



At 13:29 8/15/05, Koehler, Steve wrote:

>You note that Mahajan is pessimistic for larger RMS errors.  Is it 
>possible that
>your directly calculated Strehl ratio is inaccurate (optimistic?) 
>for larger RMS
>errors, because the calculation is discrete?
>

Steve:

Maybe. I guess the way to find out is to use a larger FFT. I think I 
have enough memory to try it, and CPU cycles are cheap.

Mike


_________________

Michael Peck
email mpeck1@ix.netcom.com
Wildlife photoblog! http://wildlife-pix.com
Amateur telescope making http://home.earthlink.net/~mlpeck54/astro/astro.html 

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