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Message ID: 5514     Entry time: Thu Sep 22 10:43:50 2011
Author: Paul 
Type: Update 
Category: SUS 
Subject: Power spectrum with different filter gains 

 I thought it might be informative before trying to optimise the filter design to see how the current one performs with different gain settings. I've plotted the power spectra for ITMY yaw with filter gains of 0, 1, 2, 3 and 4.

All of the higher gains seem to perform better than the 0 gain, so can I deduce from this that so far the oplev control loop isn't adding excess noise at these frequencies?

Attachment 1: ITMY_YAW_closed_vs_open_noise.pdf  29 kB  | Hide | Hide all
ITMY_YAW_closed_vs_open_noise.pdf
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