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40m Log |
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Message ID: 1037
Entry time: Wed Oct 8 23:18:23 2008
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Author: |
Yoichi |
Type: |
Update |
Category: |
PSL |
Subject: |
Correlation between the Sorensen switching noise and the FSS error signal |
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I took some spectra and coherence function of the FSS error signal and the +24V Sorensen power line.
The first plot shows spectra of the two signals. Looks like Sorensen is not responsible for most of the lines
in the FSS error signal.
The coherence function between the two signals supports it (second plot).
Slight coherence can be seen at 23kHz and 98.4kHz but not significant.
I will check the coherence of the power line with the ISS signal next. |
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