Time Window Browser

This forum is dedicated to discuss all problems and suggestions related to the use of geopsy database and its plugins (array processing, H/V,...).
bambang.setiawan
Posts: 1
Joined: Tue Mar 25, 2014 3:46 am

Time Window Browser

Postby bambang.setiawan » Wed Jun 08, 2016 1:00 am

Hi Marc,

I am new geopsy user. I would like to ask you an issue in my FK analysis.
Why my both CVFK and HRFK analyses using Test button cannot produce a clear pattern as shown in your online manual to obtain propagation azimuth of the wave? See the attached screen shots.

FYI, I am using circular hexagonal array with radius 50 meter with one instrument in the centre.
Attachments
HRFK0401.PNG
(64.75 KiB) Not downloaded yet
CVFK0401.PNG
(74.72 KiB) Not downloaded yet
HRFK0804.PNG
(56.75 KiB) Not downloaded yet
CVFK0804.PNG
(74.36 KiB) Not downloaded yet

Roberto Cabieces
Posts: 1
Joined: Fri Nov 25, 2016 11:18 am

Re: Time Window Browser

Postby Roberto Cabieces » Mon Dec 19, 2016 9:22 am

Hello user,

this is due to spatial aliasing, maybe your array has a geometric, so you have ambiguety in the range of the wavenumber resolution of your array.

Try to analyze your data in the closest period 2pi/Dmax


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