Difference between revisions of "Geopsy"

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== Tutorials ==
 
  
* [[Spectral ratio H/V]]
 
  
* [[Spectral amplitudes]]
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== Menu descriptions ==
  
* [[Ambient vibration array]]
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* [[Geopsy: File menu|File]]
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* [[Geopsy: Edit menu|Edit]]
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* [[Geopsy: View menu|View]]
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* [[Geopsy: Waveform Menu|Waveform]]
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* [[Geopsy: Tools|Tools]]
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* [[Windows menu|Windows]]
  
* [[Active source experiment (MASW)]]
 
  
 
== Database ==
 
== Database ==
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This section explains how to work with a Geopsy database. Creating a database on a permanent storage (disk) is not a mandatory step. You can use Geopsy to view and to process signals on single files basis. However, you would miss a number of interesting features such as grouping of signals, storage of header modification and automatic storage of processed signals.
 
This section explains how to work with a Geopsy database. Creating a database on a permanent storage (disk) is not a mandatory step. You can use Geopsy to view and to process signals on single files basis. However, you would miss a number of interesting features such as grouping of signals, storage of header modification and automatic storage of processed signals.
  
[[Geopsy:database|Read more]]
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*[[Geopsy: Database|Introduction]]
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*[[Geopsy: Import signal files|Import signal files]]
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*[[Geopsy: Signal drag&drop|Signal drag and drop mechanism]]
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*[[Geopsy: Open, Close and Save|Open, Close and Save a database]]
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*[[Geopsy: Groups|Groups of signals]]
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*[[Geopsy: Preferences|Preferences]]
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*[[Geopsy: Set header|Editing header information]]
  
== Signal viewers ==
 
  
== Basic signal processing ==
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== [[Geopsy: Signal Viewer|Signal viewers]] ==
  
Basic signal processing methods are provided for fast analysis. By contrast with [[Tools]], they execute only one simple action (filter, cut,...). All operations can be started interactively from the [[Waveform menu]] or through a scripting engine ([[Waveform console]] or [[Waveform command line]]).
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*[[Geopsy: Table|Table]]
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*[[Geopsy: Graphic|Graphic]]
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*[[Geopsy: Map|Map]]
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*[[Geopsy: Chronogram|Chronogram]]
  
* [[Waveform menu]]
 
* [[Waveform console]]
 
* [[Waveform command line]]
 
  
Methods that process individually all signals:
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== Basic signal processing ==
* [[Subtract value]]
 
* [[Subtract signals]]
 
* [[Multiply]]
 
* [[Filter]]
 
* [[Automatic gain control]]
 
* [[Whiten]]
 
* [[Clip]]
 
* [[Phase shift]]
 
* [[Over sample]]
 
* [[Taper]]
 
* [[Cut]]
 
* [[Merge]]
 
* [[Decimate amplitude]]
 
* [[Decimate time]]
 
  
Special methods that process individually all signals:
+
Basic signal processing methods are provided for fast analysis. By contrast with [[Geopsy: Tools]], they execute only one simple action (filter, cut,...). Interactive and script-based approaches are available.
* [[Wavelet transform]]
 
* [[STA/LTA]]
 
  
Methods that process several signals together:
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* [[Geopsy: Waveform Menu|Waveform menu]]
* [[Rotate components]]
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* [[Geopsy: Waveform Console|Waveform console]]
* [[Correlations]]
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* [[Geopsy: Waveform Command Line|Waveform command line]]
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* [[Geopsy: Waveform Scripting Language|Waveform scripting language]]
  
They all apply to the currently active [[Signal Viewer]]. The original signals are never altered. Operations are applied to a temporary copy ([[Temporary signals]]), automatically removed once there is no more [[Signal Viewer]] referring to it. Each method is performed in a specific domain (e.g. time of frequency). If the signals of the active [[Signal Viewer]] are not in the right domain, they are internally converted with the [[Fast Fourier Transform]] before processing. The initial domain is restored after processing. Results of a transformation can be saved permanently into the current [[Signal database]] or exported to a file ([[Export signals]]).
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== Tutorials ==
 +
 
 +
* [[Loading and viewing signals]]
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* [[H/V spectral ratio]]
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* [[H/V Rotate]]
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* [[Spectral amplitudes]]
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* [[Spectrum Rotate]]
 +
* [[Ambient vibration array]]
 +
* [[Active source experiment (MASW)]]

Latest revision as of 08:44, 25 January 2024


Menu descriptions


Database

This section explains how to work with a Geopsy database. Creating a database on a permanent storage (disk) is not a mandatory step. You can use Geopsy to view and to process signals on single files basis. However, you would miss a number of interesting features such as grouping of signals, storage of header modification and automatic storage of processed signals.


Signal viewers


Basic signal processing

Basic signal processing methods are provided for fast analysis. By contrast with Geopsy: Tools, they execute only one simple action (filter, cut,...). Interactive and script-based approaches are available.

Tutorials