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《Acta Scientiarum Naturalium Universitatis Pekinensis》 2012-03
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Seismic Inverse Q Filtering Using Malvar Window Based Time-Frequency Analysis

ZI Libo,GE Zengxi School of Earth and Space Sciences,Peking University,Beijing 100871;  
A new inverse Q filtering method based on the time-frequency analysis using Malvar wavelet decomposition is proposed.Firstly,the forward phase and amplitude propagator based on mathematical model in anelastic model are computed.Then the composition process is considered as an inverse propagator.The operator is the function of Q,frequency,and travel time,through the frequency-time analysis based on Malvar wavelet decomposition.The proposed method is used to compensate the synthetic seismic trace produced by boundary element method.The result shows that it can correct amplitude attenuation and phase distortion effectively and stably.
【Fund】: 国家自然科学基金(41074029 40821160552 40821062)资助
【CateGory Index】: P315
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【Citations】
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