Carmelo,
it depends on what you want to achieve, +with respect to Nyquist/Shannon
etc...
if you want to cross-correlate at 1Hz, you'll have information up to
0.5Hz, you have to preprocess-lowpass below that, and decimate by a
factor of 125...
About the bug: I don't know, please fill in an Issue on the github, so I
can have a look at it later.
Thomas
Le 09/02/2015 13:35, Sammarco, Carmelo a écrit :
thanks Thomas for this info.
1) yes.. 125 Hz
2) the configured cc_sampling_rate is 1 HZ
So what can you suggest me to run correctly the computations? What decimation factor
and/or resample value I need to use?? May explain me in witch way I can understand what is
the correct parameters?
Is it possible resolve the bug or ignore it to finish the computation?
thank you very much.
-----------
Mr Carmelo Sammarco MSc BSc FGS
PhD Student in Geology and Petroleum Geology
________________________________________
From: msnoise-bounces(a)mailman-as.oma.be <msnoise-bounces(a)mailman-as.oma.be> on
behalf of Thomas Lecocq <thomas.lecocq(a)oma.be>
Sent: 09 February 2015 11:57
To: msnoise(a)mailman-as.oma.be
Subject: Re: [MSNoise] About s03compute_cc
Hi Carmelo,
1/ It looks like you are using 125 Hz data, is that right ?
2/ What is the configured "cc_sampling_rate" value ? I suppose it's 1 Hz.
The first error is because you can't decimate by a factor of 5 to go
from 125 to 1Hz.
The second looks like an error in the resample method which gives back 2
samples less than expected, and it's a bug.
Thomas
Le 09/02/2015 12:40, Sammarco, Carmelo a écrit :
Dear all,
I am running the CC process. The terminal show me this:
carmelo@COPS-023437:~/msnoise/FLEG$ python s03compute_cc.py
2015-02-09 11:14:40,482 [INFO] *** Starting: Compute CC ***
2015-02-09 11:14:40,509 [INFO] Will compute ZZ
2015-02-09 11:14:40,572 [INFO] New CC Job: 2011-03-01 (1 pairs with 2 stations)
2015-02-09 11:14:40,587 [DEBUG] FLEG.ACL2.Z Reading 24 Files
2015-02-09 11:14:41,207 [DEBUG] FLEG.ACL2.Z Merging Stream
2015-02-09 11:14:41,227 [DEBUG] FLEG.ACL2.Z Slicing Stream to
2011-03-01T00:00:00.000000Z:2011-03-01T23:59:59.992000Z
2015-02-09 11:14:41,227 [DEBUG] FLEG.ACL2.Z Lowpass at 0.20 Hz
2015-02-09 11:14:41,655 [DEBUG] FLEG.ACL2.Z Highpass at 0.05 Hz
2015-02-09 11:14:42,082 [DEBUG] FLEG.ACL2.Z Decimate by a factor of 5
Traceback (most recent call last):
File "s03compute_cc.py", line 285, in <module>
tramef_Z[istation] = trame
ValueError: could not broadcast input array from shape (2160000) into shape (86400)
-----------------------------------
carmelo@COPS-023437:~/msnoise/FLEG$ python s03compute_cc.py
2015-02-09 11:13:07,728 [INFO] *** Starting: Compute CC ***
2015-02-09 11:13:07,752 [INFO] Will compute ZZ
2015-02-09 11:13:07,831 [INFO] New CC Job: 2011-03-01 (1 pairs with 2 stations)
2015-02-09 11:13:07,849 [DEBUG] FLEG.ACL2.Z Reading 24 Files
2015-02-09 11:13:08,471 [DEBUG] FLEG.ACL2.Z Merging Stream
2015-02-09 11:13:08,492 [DEBUG] FLEG.ACL2.Z Slicing Stream to
2011-03-01T00:00:00.000000Z:2011-03-01T23:59:59.992000Z
2015-02-09 11:13:08,492 [DEBUG] FLEG.ACL2.Z Lowpass at 0.20 Hz
2015-02-09 11:13:08,921 [DEBUG] FLEG.ACL2.Z Highpass at 0.05 Hz
2015-02-09 11:13:09,347 [DEBUG] FLEG.ACL2.Z Downsample to 1.0 Hz
Traceback (most recent call last):
File "s03compute_cc.py", line 285, in <module>
tramef_Z[istation] = trame
ValueError: could not broadcast input array from shape (86398) into shape (86400)
The first I tried to do with decimate.. the second one with resample method.
Someone know in witch way can I fix this error or give me some advice?
thank you very much for your time.
Cheers
-----------
Mr Carmelo Sammarco MSc BSc FGS
PhD Student in Geology and Petroleum Geology
The University of Aberdeen is a charity registered in Scotland, No SC013683.
Tha Oilthigh Obar Dheathain na charthannas clàraichte ann an Alba, Àir. SC013683.
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_______________________________________________
MSNoise mailing list
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http://mailman-as.oma.be/mailman/listinfo/msnoise
The University of Aberdeen is a charity registered in Scotland, No SC013683.
Tha Oilthigh Obar Dheathain na charthannas clàraichte ann an Alba, Àir. SC013683.
_______________________________________________
MSNoise mailing list
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