The classification system has been impemented in Earthworm, a real-time seismic analysis tool. After data acquisition the feature computation of time windows is done in Phyton. The feature data are then passed to HTK (Hidden Markov Toolkit) which carries out the classification.

3.1 Installation on POSIX (Linux, Unix, MAC) Systems

Requirements and Current Code

1. python (>=2.5), python-lxml, python-numpy
2. gcc
3. HTK program
4. ObsPy toolbox
5. Code
6. Earthworm envorinment

3.3 Description of processing

Within the near real time monitoring for Exupéry VFRS we use Earthworm for data aquisition. The data are then passed to the feature computation routines which are included in the ObsPy toolbox. Afterwards the classification of those features is carried out using HTK which returns the classifications results to the script htk_processing.py which provides the input for the data base.