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Re: fft and least sqaues problem [message #81115 is a reply to message #81105]

Thu, 16 August 2012 02:13

rogass
Messages: 200
Registered: April 2008

Senior Member

Am Mittwoch, 15. August 2012 01:53:13 UTC+2 schrieb Craig Markwardt:
> On Tuesday, August 14, 2012 2:22:11 PM UTC-4, (unknown) wrote:
>
>> Finally, I found the mistake - sitting in front of this pc :)
>
>
>
> OK.
>
> So summarize for us: what was wrong, and what did you change to fix it?
>
>
>
> Craig

Hi,
the following was missing:

wx-=s[0]/2
wy-=s[1]/2

However, the solution is noise sensitive. Smoothing the data beforehand helps :)

Changing:
phase=atan(imaginary(corr)/real_part(corr))
to:
phase=atan(corr,/phase)

additionally reduces processing time. Thanks to Helder.

Cheers

CR

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[Message index]

		Re: fft and least sqaues problem By: rogass on Fri, 17 August 2012 07:40
		Re: fft and least sqaues problem By: Craig Markwardt on Thu, 16 August 2012 21:58
		Re: fft and least sqaues problem By: rogass on Thu, 16 August 2012 02:13
		Re: fft and least sqaues problem By: Craig Markwardt on Tue, 14 August 2012 16:53
		Re: fft and least sqaues problem By: rogass on Tue, 14 August 2012 11:22
		Re: fft and least sqaues problem By: Helder Marchetto on Tue, 14 August 2012 07:50
		Re: fft and least sqaues problem By: rogass on Tue, 14 August 2012 07:13
		Re: fft and least sqaues problem By: Craig Markwardt on Fri, 17 August 2012 08:45

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