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Entry  Tue Jan 5 01:31:09 2010, Jenne, Update, WienerFiltering, New Wiener Filters installed in PEM IIR matrix on OAF screen MCwino-FFtest_4Jan10_sameFiltersAsinEPICS.pngOAF-FF_test_4Jan10.png
    Reply  Tue Jan 5 17:32:59 2010, Jenne, Update, WienerFiltering, New Wiener Filters installed in PEM IIR matrix on OAF screen OAF-FF_test_5Jan10.png
Message ID: 2480     Entry time: Tue Jan 5 17:32:59 2010     In reply to: 2475
Author: Jenne 
Type: Update 
Category: WienerFiltering 
Subject: New Wiener Filters installed in PEM IIR matrix on OAF screen 

EDIT 6 Jan 2010:  Shouldn't have done this.  My bad.  The AA32 is on the other PEM matrix because the Adaptive code runs at 64Hz, so there's downsampling, calculating, and upsampling which goes on.  The Feed Forward path all runs at 2kHz, the regular rate of the ASS/OAF machine.  All of these filters are turned off (although I haven't deleted them from Foton).  Since we're focusing on low frequency stuff and trying to get that to do some subtraction, we're not worrying about the junk at higher frequencies just yet.

 

I have put AA32 filters into the PEMIIR matrix's input filter banks (ie, C1:ASS-TOP_PEMIIR_##), to match the ones that are in the same places in the regular PEM matrix on the OAF screen. 

I redid the uncorrected vs. corrected MC_L DTT printout, shown below. You can see that there's less junk at higher frequencies in the Blue (actuation channel) trace, which is good.

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