Marine Seismic Display Enhancement Program. Volume II. Processing Software

摘要

This document describes the processing software programs developed under the Marine Seismic Display Enhancement Program. These programs provide the geophysicists and acousticians with software to enhance marine seismic profiling data. This report contains a general software program description, UNIVAC 1108 computer listing, and the operation procedure for each program. Software to decode the Seismic Data Acquisition System's data, to process the data, and to prepare the data for playback on the Seismic Data Display System is included. Required modifications to the UNIVAC 1108 computer listings for operation on the CDC 6600 are given. This volume explains six software programs developed to enhance display of digitally recorded seismic data. The first two programs are digital filters which remove undesired frequency content from seismic data, the third vertically stacks several records with the same source to hydrophone array distance resulting in improved signal-to-noise. The fourth program is an optimum least squares filter commonly known as the 'Wiener Filter'; the fifth develops a band limited zero-phase time domain pulse with defined frequency content and the sixth develops a spectral analysis routine for time series data by use of a fast fourier transform method.