Title :
Two-dimensional wideband interpolated root-MUSIC applied to measured seismic data
Author :
Sidorovich, Dmitri V. ; Gershman, Alex B.
Author_Institution :
Dept. of Electr. Eng., Ruhr Univ., Bochum, Germany
fDate :
8/1/1998 12:00:00 AM
Abstract :
We apply two-dimensional (2-D) elementspace and beamspace extensions of Friedlander´s (Friedlander 1993; Friedlander and Weiss 1993) wideband interpolated root-MUSIC technique to azimuth-velocity source location using measured seismic data from the GERESS array. Real data processing shows that 2-D interpolated root-MUSIC is able to estimate the parameters of a typical seismic source with good accuracy. The use of interpolated root-MUSIC and dimension reduction via beamspace is motivated by a dramatic reduction of processing time, allowing efficient on-line implementation
Keywords :
array signal processing; direction-of-arrival estimation; geophysical signal processing; interpolation; seismology; Friedlander´s wideband interpolated root-MUSIC technique; GERESS array; azimuth-velocity source location; beamspace extensions; dimension reduction; elementspace extensions; on-line implementation; processing time; real data processing; seismic data; seismic source; two-dimensional wideband interpolated root-MUSIC; Apertures; Data processing; Frequency; Parameter estimation; Position measurement; Seismic measurements; Sensor arrays; Signal processing; Two dimensional displays; Wideband;
Journal_Title :
Signal Processing, IEEE Transactions on
