Now showing items 1-4 of 4
Waveform tomography and its application at a ground water contamination site
This thesis develops and applies seismic waveform tomography to solve the unique problem of imaging complicated shallow sub-structures with high resolution. Shallow sub-structures are commonly characterized by seismic ...
A new approach to slant stack processing: An X-window (OSF/motif) project
A new definition for slant stack and inversion has been formulated. The different p ranges with different frequencies in the forward slant stack provide accurate reconstruction of the original data. The computing time is ...
DMO on irregularly spaced seismic data (dip moveout)
Irregularly spaced seismic data have uneven distribution of trace midpoint density on the half-offset (h) versus common-midpoint (y) space. The deviation from uniformity disrupts the cancellation and reinforcement processes ...
Wave equation migration velocity analysis by differential semblance optimization
Differential semblance measures the deviation from flatness or focus of image gathers. The differential semblance objective function posed on the sub-surface offset domain responds smoothly to velocity changes. Therefore ...