Title :
Third-order Spectral Analysis of Geolectrical Signals
Author :
Ifantis, Apostolos ; Tsagaris, Vassilis ; Anastassopoulos, Vassilis ; Tselentis, Gerasimos Akis
Author_Institution :
Dept. of Electr. Eng., Technol. Inst. of Patras
Abstract :
A third-order spectral analysis for the detection of nonlinearities in geoelectric signals is presented in this work. Specifically, the bispectrum and bicoherence function are employed for the case of the geoelectrical signal acquired over the period of 1993-2002 in the area of Patras, Greece. This is an area of intense seismic activity and the possible relation between this activity and the non-linear mechanism of the geoelectrical signal is explored
Keywords :
geophysical signal processing; spectral analysis; terrestrial electricity; bicoherence function; bispectrum function; geoelectrical signals; nonlinearities detection; third-order spectral analysis; Earthquakes; Educational programs; Electrodes; Frequency measurement; Laboratories; Physics; Seismic measurements; Seismology; Signal detection; Spectral analysis; Geolectrical signal; higher order spectra;
Conference_Titel :
Computer as a Tool, 2005. EUROCON 2005.The International Conference on
Conference_Location :
Belgrade
Print_ISBN :
1-4244-0049-X
DOI :
10.1109/EURCON.2005.1630282
