FIELD: filtering of surface waves and waves coming from pipes in boreholes within scope of seismic prospecting, for instance. SUBSTANCE: method includes detection of components of waves along two, as minimum, orthogonal directions with the aid of at least one detector R composed of several direction transmitters, such as geophones or accelerometers coupled to geological formation. Processing unit determines functions of transformation of signals formed by detector R in response to detected waves to weak waves. Amplitude selection of signals obtained as result of this transformation to weak waves in accordance with criterion based on relation of their mutual amplitudes is conducted. EFFECT: raised quality of filtering. 16 cl, 16 dwg
Authors
Dates
2001-04-10—Published
1996-07-25—Filed