Geopsy: Tools

Tools menu

Geopsy software provides powerful tools for advanced signal processings, for instance ambient vibration array processings or H/V spectral ratio. A plug-in mechanism allows you to install only selected tools corresponding to your need. Through the menu Preferences it is possible to add (or remove) new tools without upgrading the main Geopsy frame.

The advanced signal processings tools are available under the menu Tools or directly by clicking on the icons in the toolbar. The following tools are available:

• F-K : conventional frequency wavenumber technique
• High resolution F-K : high resolution frequency wavenumber technique
• MSPAC : modified spatial autocorrelation technique
• Linear F-K for active experiments : multichannel analysis of surface waves
• Linear F-K for passive experiments : multichannel analysis of surface waves for ambient vibrations
• Damping : computation of damping factor for soil or structure
• Spectrum : Fourier amplitude spectra
• Spectrum Rotate : Fourier amplitude spectra in the horizontal space
• H/V spectral ratio : Horizontal-to-Vertical spectral ratio
• H/V Rotate : Horizontal-to-Vertical rotate spectral ratio
• Noise reduction
• Particle motion
• Refraction with NA: obsolete
• Time frequency analysis
• Structure spectrum

As said previously the tools plug-ins can be managed in the menu Preferences. However, options for tool debug are also available from command line interface :

 -debug-stream             // Debug mode (redirect all logs to stdout)
 -clear-tools              // Reset to default tool list
 -debug-tools              // Test available tools and exit
 -add-tool-path <PATH>     // Add PATH to the list of paths to search for tools

Some advanced signal processing tools can be run from command line interface

-tool fk                   // run the conventional frequency wavenumber analysis
-tool hrfk                 // run the high resolution frequency wavenumber analysis
-tool hv                   // compute the Horizontal-to-Vertical ratio
-tool hvrotate             // compute the Horizontal-to-Vertical rotate ratio
-tool linearfkactive       // run the multichannel analysis of surface waves
-tool linearfkpassive      // run the multichannel analysis of surface waves for ambient vibrations
-tool spac                 // run the modified spatial autocorrelation technique
-tool spectrum             // compute the Fourier spectrum of signals
-tool spectrumrotate       // compute the rotate Fourier spectrum of signals
-tool structure