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Title Page; Copyright Page; Contents; Preface; Chapter 1 Study On Method For Relative Fidelity Preservation Of Seismic Data; 1.1 Introduction; 1.2 Discussion On Impact On Processing Of High-resolution, High Snr For Seismic Acquisition And Observation Mode; 1.3 Discussion On The Cause Of Notching; 1.4 Discussion Of Impact On Processing Of Relative Fidelity Preservation Seismic Data For Seismic Acquisition And Observation Mode; 1.5 Comparison Of Results Of High-resolution, High Snr Processing And Relative Fidelity Preservation Processing; 1.6 Elastic Wave Forward Modeling; 1.7 Conclusions. Chapter 3 Study Of Reverse Time Migration Method For Areas With Complicated Structures Based On The Gpu/cpu System3.1 Introduction; 3.2 The Gpu/cpu High0performance Calculation And Its Application In Seismic Exploration; 3.2.1 Introduction Of The Gpu/cpu System; 3.2.2 Gpu/cpu High-performance Computing And The Application In Seismic Exploration; 3.3 Study On The Two-way Wave Extrapolation Operator And Its Boundary Conditions; 3.3.1 High-order Difference Method; 3.3.2 Boundary Condition Issue Of Reverse Time Migration. 3.4 Study On The Imaging Condition And Low-frequency Noise Suppression Method 3.4.1 Study On Imaging Condition And Low-frequency Noise Generation Mechanism; 3.4.2 Theory And Application Of Laplace Filtering Suppressing Low-frequency Noise; 3.5 Study And Application Of Rtm Prestack Imaging Algorithm Based On The Gpu/cpu System; 3.5.1 Analysis Of Structural Characteristics Of The Gpu/cpu Platform; 3.5.2 Analysis Of The Application Features Of Cuda Programming Language In The Gpu/cpu Platform; 3.5.3 Realization Strategy Of Rtm Prestack Imaging Based On The Gpu/cpu; 3.6 Conclusions; References. Chapter 4 Study And Application Of Velocity Model Building Method For The Areas With Complicated Structures4.1 Introduction; 4.2 Status Quo And The Development Of The Velocity Model Building Method; 4.3 Impacting Factors For The Velocity Model Building; 4.3.1 The Influences