Possibility of the use of phase portraits and fractal dimension is considered for the analysis signals of geophysical (seismic) sensors for the exposure of earthquakes small intensity. It is shown that the change form of phase portraits allows to select beginning vibrations of earthly surface, when on the dates of geophysical sensors amplitude given not observed. It is set that after the maximal value of fractal dimension dates of geophysical sensors it is possible to define the moment beginning vibrations earthly surface of small intensity.
phase portrait, fractal dimension, geophysical (seismic) sensor
"Analiz syhnaliv heofizychnykh datchykiv dlia vyiavlennia zemletrusiv maloi intensyvnosti z vykorystanniam fazovykh portretiv ta fraktalnoi rozmirnosti" ,
Information Processing Systems,