| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
11933
|
Thu Jan 14 15:08:37 2016 |
ericq | Update | WienerFiltering | Noise Subtraction Puzzler | The anticlimatic resolution to my subtraction
confusion: Spectral leakage around 1Hz. Increasing the
FFT length to 256 sec now shows that the |
|
|
11934
|
Thu Jan 14 18:41:36 2016 |
rana | Update | WienerFiltering | Noise Subtraction Puzzler | Just not just pedagogical ! Freq
domain MISO coherence based subtraction estimation
is much faster than calculating MISO WF. |
|
|
12059
|
Fri Apr 1 13:11:26 2016 |
ericq | Update | WienerFiltering | Bilinear Noise Testing | I've been banging my head against bilinear
noise subtraction, and figured I needed to
test things on some real hardware to see |
|
|
10019
|
Tue Jun 10 11:54:36 2014 |
Zach | Configuration | Wiki | DokuWikis are still down | Not sure if someone is already on this,
but the nodus DokuWikis are still down (AIC,
ATF, Cryo, etc.) |
|
|
10021
|
Tue Jun 10 19:11:27 2014 |
Evan | Configuration | Wiki | DokuWikis are back up | As of this writing, the DokuWiki |
|
|
10022
|
Wed Jun 11 05:16:14 2014 |
Zach | Configuration | Wiki | DokuWikis are back up | It looks like auth is broken on the AIC
wiki (though working fine on ATF and Cryo). |
|
|
10024
|
Wed Jun 11 10:15:15 2014 |
Evan | Configuration | Wiki | DokuWikis are back up |
|
|
|
10029
|
Wed Jun 11 20:09:37 2014 |
Zach | Configuration | Wiki | DokuWiki situation | I have been looking into the DokuWiki
situation, with no great progress so far.
The problem is with authentication. |
|
|
10355
|
Fri Aug 8 16:45:40 2014 |
Nichin | Update | Wiki | PDFR wiki updated | The PDFR system has been documented
in the 40m wiki and all the relevant information
about making changes and keeping it updated |
|
|
10366
|
Mon Aug 11 23:50:38 2014 |
rana | Configuration | Wiki | DokuWikis are back up |
|
|
|
10393
|
Thu Aug 14 20:52:36 2014 |
rana | Update | Wiki | Violin Mode table added to Wiki | Mech
Resonance Wiki
I've updated the wiki by trawling |
|
|
12935
|
Mon Apr 10 15:22:46 2017 |
rana | Configuration | Wiki | DokuWikis are back up | AIC Wiki updated
to latest stable version of DokuWiki: |
|
|
13767
|
Thu Apr 19 09:57:03 2018 |
gautam | Update | Wiki | AP and ETMX tables uploaded to wiki | The most up to date pictures of the AP
table and ETMX table that Steve took have
been uploaded to the relevant |
|
|
13776
|
Fri Apr 20 16:25:08 2018 |
Steve | Update | Wiki | ETMX table layout uploaded to wiki | ETMX
table layout uploaded with beam paths
to the wiki. |
|
|
13785
|
Tue Apr 24 15:59:23 2018 |
Steve | Update | Wiki | AP table layout 20180328 |
Quote:
|
|
|
14173
|
Tue Aug 21 09:16:23 2018 |
Steve | Update | Wiki | AP table layout 20180821 |
|
|
|
15429
|
Wed Jun 24 22:47:21 2020 |
Yehonathan | Update | Wiki | Updated phase maps webpage | I uploaded the new phase maps measurements
made by GariLynn to nodus and updated the
optics phase maps page.
I |
|
|
15614
|
Tue Oct 6 07:37:20 2020 |
yehonathan | Update | Wiki | New TIS measurements of 40m Optics | LiYuan has kindly done some Total Integrating
Sphere (TIS) measurements on ITMU01 and ITMU02.
A summary of the measurement is attached. |
|
|
16614
|
Mon Jan 24 12:33:41 2022 |
rana | Configuration | Wiki | AIC Wiki: txz files allowed | I updated the mime.local.conf file for
the AIC Wiki so as to allow attachments with
the .txz |
|
|
1199
|
Sun Dec 21 13:00:06 2008 |
steve | Update | all down cond. | vac and laser back on | There was a power outage sometimes early Saturday.
All things are down.
|
|
|
2025
|
Tue Sep 29 23:43:49 2009 |
rana | AoG | all down cond. | Cosmic | |
|
|
2344
|
Sun Nov 29 16:56:56 2009 |
rob | AoG | all down cond. | sea of red | Came in, found all front-ends down.
Keyed a bunch of crates, no luck: |
|
|
2345
|
Mon Nov 30 10:28:47 2009 |
Alberto | AoG | all down cond. | sea of red |
|
|
|
2346
|
Mon Nov 30 11:29:40 2009 |
Alberto | AoG | all down cond. | sea of red |
|
|
|
2355
|
Sat Dec 5 14:41:07 2009 |
rob | AoG | all down cond. | sea of red, again | Taking a cue from entry 2346,
I immediately went for the nuclear
option and powered off fb40m. Someone |
|
|
2356
|
Sat Dec 5 15:20:10 2009 |
Jenne | AoG | all down cond. | sea of red, again |
|
|
|
4011
|
Sun Dec 5 22:28:39 2010 |
rana | Summary | all down cond. | power outage | Looks like there was a power outage.
The control room workstations
were all off (except for op440m). Rosalba |
|
|
4012
|
Mon Dec 6 11:53:20 2010 |
josephb, kiwamu | Summary | all down cond. | power outage | The monitors for allegra and rossa's seemed
to be in a weird state after the power outage.
I turned allegra and rossa on, but didn't |
|
|
4013
|
Mon Dec 6 11:57:21 2010 |
Koji | Summary | all down cond. | power outage | I checked the vacuum system and judged
there is no apparent issue.
The chambers and annulus had been |
|
|
6039
|
Tue Nov 29 17:10:39 2011 |
Den | Update | digital noise | SOS creation | One of the possibilities that we see a
large low-frequency digital noise is due
to Foton. I've checked the SOS coefficients |
|
|
6041
|
Tue Nov 29 18:31:40 2011 |
Den | Update | digital noise | Foton error | In the previous elog we've compared
Matlab and Foton SOS representations using
low-order filter. Now we move on to high |
|
|
6045
|
Tue Nov 29 22:19:26 2011 |
Den | Update | digital noise | straight line | I tried to understand what part of
the signal is corrupted while passing through
a digital straight line without any filters. |
|
|
6046
|
Tue Nov 29 22:54:49 2011 |
Den | Update | digital noise | single precision | In the previous elog we've proved
that signals C1:SUS-MC3_LSC_EXCMON and C1:SUS-MC3_LSC_OUTMON
are in single precision. Now we try to understand |
|
|
6061
|
Thu Dec 1 18:30:39 2011 |
Vladimir, Den | Update | digital noise | Foton error | Foton Matlab Error
We investigated
some more the discrepancy between Matlab |
|
|
6062
|
Fri Dec 2 17:43:46 2011 |
rana | Update | digital noise | Foton error | It would be useful to see some plots so
we could figure out exactly what magnitude
and phase error correspond to "gross" |
|
|
6063
|
Fri Dec 2 20:16:41 2011 |
Den | Update | digital noise | first order transition | In order to verify our theory about coherence
corruption in linear systems due to the line
|
|
|
6083
|
Wed Dec 7 20:55:44 2011 |
Vladimir, Den | Update | digital noise | Matlab error |
|
|
|
7021
|
Tue Jul 24 21:16:55 2012 |
Den | Update | digital noise | quantization test | I'm trying to get some intuition how digital
noise due to quantization shows up in iir
filters. I decided to do tests in C using |
|
|
7031
|
Wed Jul 25 16:55:01 2012 |
Den | Update | digital noise | notch, lowpass filters | Direct Form 2 is noisy in the first
test. This is the one similar to Matt's in
his presentation. Input signal was a sine |
6x |
|
7034
|
Wed Jul 25 23:03:22 2012 |
rana | Update | digital noise | notch, lowpass filters | If the problem is the precision in DTT,
then why would the noise change when the
corner frequency of the filter is changed? |
|
|
7036
|
Thu Jul 26 10:22:03 2012 |
Den | Update | digital noise | notch, lowpass filters |
|
|
|
7041
|
Thu Jul 26 17:39:49 2012 |
Den | Update | digital noise | biquad key is working | I've filtered a 1 Hz sin wave excitation
with a notch filter inside c1sus and c1rfm
models. The biquad key is switched on in |
|
|
7042
|
Thu Jul 26 21:31:44 2012 |
Den | Update | digital noise | online biquad works |
|
|
|
7045
|
Fri Jul 27 14:30:49 2012 |
Jamie | Update | digital noise | biquad key is working | What is "DQF"? Is that
the biquad? And what is the difference
between DF1 and DF2? Why don't you |
|
|
7050
|
Mon Jul 30 14:24:25 2012 |
Den | Update | digital noise | biquad key is working |
|
|
|
7052
|
Mon Jul 30 16:05:36 2012 |
Den | Update | digital noise | filter checker | We decided to write a script that
will check online filters for digital noise.
One method can be implemented using the following |
|
|
7085
|
Sat Aug 4 17:32:31 2012 |
Den | Update | digital noise | filter checker | The script estimates digital noise produces
by online filters. First version of Matlab
files and complied c files are in scripts/digital_noise |
|
|
7676
|
Tue Nov 6 18:39:16 2012 |
Den | Update | digital noise | ifo checking system | Matlab version of ifo digital noise estimation
code is almost ready. It estimates digital
noise introduced by each filter bank in each |
|
|
2131
|
Wed Oct 21 17:12:30 2009 |
Alberto | Update | elog | Browser context menu enabled on the Elog under HTM editing mode | On behalf of Steve and of the rest of the
not-native-English community at the 40m willing
to have their browser's spell checker working |
|
|
2200
|
Fri Nov 6 19:29:24 2009 |
Jenne | Update | elog | elog acting up | elog was acting up again (not running),
so I restarted it. |
|