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Thread Subject:
seismology and digital signal processing

Subject: seismology and digital signal processing

From: samee baig

Date: 19 Jun, 2010 09:11:06

Message: 1 of 7

hello
I am a student of electronic engineering.I have been give project on the relationship or application of digital signal processing and seismology and how we can use matlab in this respect.please provide me with some information on this project.

Subject: seismology and digital signal processing

From: Rune Allnor

Date: 19 Jun, 2010 09:21:03

Message: 2 of 7

On 19 Jun, 11:11, "samee baig" <sameebai...@hotmail.com> wrote:
> hello
> I am a student of electronic engineering.I have been give project on the relationship or application of digital signal processing and seismology and how we can use matlab in this respect.please provide me with some information on this project.

Signal processing in seismology: There was a special issue of
Proceedings of the IEEE some time in 1984 - I *think* it was
september or october.

Matlab? Forget it. Seismology is one of the really heavy
computational applications, where every drop of performance
matters. You can use matlab to play with the algorithms,
but once the going gets tough you need to throw it away.

Rune

Subject: seismology and digital signal processing

From: Wayne King

Date: 19 Jun, 2010 10:07:05

Message: 3 of 7

"samee baig" <sameebaig60@hotmail.com> wrote in message <hvi1ja$3hm$1@fred.mathworks.com>...
> hello
> I am a student of electronic engineering.I have been give project on the relationship or application of digital signal processing and seismology and how we can use matlab in this respect.please provide me with some information on this project.

I haven't looked at it, but this link provides a book on numerical methods in exploration seismology in Matlab.

http://www.crewes.org/ResearchLinks/FreeSoftware/

Wayne

Subject: seismology and digital signal processing

From: ImageAnalyst

Date: 19 Jun, 2010 13:20:19

Message: 4 of 7

On Jun 19, 5:21 am, Rune Allnor <all...@tele.ntnu.no> wrote:
> On 19 Jun, 11:11, "samee baig" <sameebai...@hotmail.com> wrote:
>
> > hello
> > I am a student of electronic engineering.I have been give project on the relationship or application of digital signal processing and seismology and how we can use matlab in this respect.please provide me with some information on this project.
>
> Signal processing in seismology: There was a special issue of
> Proceedings of the IEEE some time in 1984 - I *think* it was
> september or october.
>
> Matlab? Forget it. Seismology is one of the really heavy
> computational applications, where every drop of performance
> matters. You can use matlab to play with the algorithms,
> but once the going gets tough you need to throw it away.
>
> Rune

----------------------------------------------------------------------------------
Yes, I hear that seismology often has huge data sets that dwarf my
puny 20 GB CT images. I hear their images their data sets can be up
to 10 terabytes!

There is a 3D visualization and measurement program designed to work
with them. It's called Avizo Earth:
http://www.vsg3d.com/vsg_prod_avizo_earth.php

There used to be a product that worked with MATLAB and claimed to be
able to handle huge terabyte datasets. It was called Star-P. But the
company (interactive supercomputing) was acquired by Microsoft -
http://www.microsoft.com/pathways/star-p/
But it appears to me (http://www.microsoft.com/pathways/star-p/
FAQ.htm) that they just bought the people and brains because they
decided to kill off Star-P. Bummer - we have a license :-(

But there's probably still stuff you can learn if you use small
datasets. Ask your project sponsor for some small datasets you can
practice with, and follow up on the links the others gave you and do
some web searches of the internet and the Mathworks File Exchange.
-ImageAnalyst

Subject: seismology and digital signal processing

From: Walter Roberson

Date: 19 Jun, 2010 13:39:51

Message: 5 of 7

Rune Allnor wrote:

> Matlab? Forget it. Seismology is one of the really heavy
> computational applications, where every drop of performance
> matters. You can use matlab to play with the algorithms,
> but once the going gets tough you need to throw it away.

... and code the algorithm in a language designed for numeric
performance, such as Fortran.

Subject: seismology and digital signal processing

From: Rune Allnor

Date: 19 Jun, 2010 16:00:13

Message: 6 of 7

On 19 Jun, 15:39, Walter Roberson <rober...@hushmail.com> wrote:
> Rune Allnor wrote:
> > Matlab? Forget it. Seismology is one of the really heavy
> > computational applications, where every drop of performance
> > matters. You can use matlab to play with the algorithms,
> > but once the going gets tough you need to throw it away.
>
> ... and code the algorithm in a language designed for numeric
> performance, such as Fortran.

Wrong. The main problems with seismic data sets is logistics.
You need to be able to access data freely and unconstrained,
which means that languages that give you fine control of
memory managment easily will beat systems that focus on mere
numerics.

But you are, unfortunately, right in that fortran is still
used in these systems. However, the pros had already switched
to C some 15 years ago, when I took my course on seismic
programming. Somebody at the system vendors told me they would
have preferred to go C++, but decided against it due to the
non-standard name mangling in C++ object code.

Rune

Subject: seismology and digital signal processing

From: Steven Lord

Date: 22 Jun, 2010 19:42:24

Message: 7 of 7


"Rune Allnor" <allnor@tele.ntnu.no> wrote in message
news:3d0ec7bb-251e-4e38-ad2c-3365ccb40ea2@w31g2000yqb.googlegroups.com...
> On 19 Jun, 11:11, "samee baig" <sameebai...@hotmail.com> wrote:
>> hello
>> I am a student of electronic engineering.I have been give project on the
>> relationship or application of digital signal processing and seismology
>> and how we can use matlab in this respect.please provide me with some
>> information on this project.
>
> Signal processing in seismology: There was a special issue of
> Proceedings of the IEEE some time in 1984 - I *think* it was
> september or october.
>
> Matlab? Forget it. Seismology is one of the really heavy
> computational applications, where every drop of performance
> matters. You can use matlab to play with the algorithms,
> but once the going gets tough you need to throw it away.

Well, admittedly only one of the user stories in the Earth and Ocean
Sciences category deals with earthquakes (more deal with "ocean sciences"
than "earth sciences") but you might find Geoscience Australia's experiences
an interesting read.

http://www.mathworks.com/products/matlab/userstories.html?code=earth&by=industry

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

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