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Message ID: 1606     Entry time: Tue May 19 15:54:29 2009
Author: Jenne 
Type: Update 
Category: PEM 
Subject: More Plots for the S5 H1:DARM Wiener Filtering.... 

Even more plots for the Wiener filtering!

We have a set of spectrograms, which show (in color) the amplitude spectrum, at various times during a one month stretch of time, during S5. Each vertical data-'stripe' is 10min long.

We also have a set of band-limited plots, which take the spectra at each time, and integrate under it, for different frequency bands.

Each set of plots has the following 3 plots:  The raw DARM spectrum, a ratio of residual/raw, and the residuals, normalized to the first one (on which the wiener filter was trained).

The residuals are the DARM spectrum, after subtracting the Wiener-filtered seismometer witness data.


From the ratio plots, it looks like the wiener filter is pretty much equally effective at the time on which the filter was trained, as one month later.  Static filters may be okey-dokey for a long period of time with for the seismic stuff.

Attachment 1: H1darmCompSpecgramRAW.png  291 kB  | Hide | Hide all
Attachment 2: H1darmCompSpecgramRATIO.png  300 kB  | Hide | Hide all
Attachment 3: H1darmCompSpecgramRESIDUALS.png  363 kB  | Hide | Hide all
Attachment 4: H1darmCompWienerRAW.png  20 kB  | Hide | Hide all
Attachment 5: H1darmCompWienerRATIO.png  22 kB  | Hide | Hide all
Attachment 6: H1darmCompWienerRESIDUALS.png  20 kB  | Hide | Hide all
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