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作者机构:Ruhr Univ Bochum Dept Elect Engn Signal Theory Grp Bochum Germany
出 版 物:《IEEE TRANSACTIONS ON SIGNAL PROCESSING》 (IEEE Trans Signal Process)
年 卷 期:1998年第46卷第8期
页 面:2263-2267页
核心收录:
主 题:array interpolation Root-MUSIC wideband direction finding
摘 要:We apply two-dimensional (2-D) elementspace and beamspace extensions of Friedlander s 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 dramatic reduction of processing time, allowing efficient on-line implementation.