Reading SEGY Format Files in MATLAB

Application Background In seismic exploration, there is a frequent need to read SEGY format seismic data files. Fortunately, MATLAB provides capabilities to read these files, including wavefront snapshots and single-shot records. More importantly, subsequent data processing can be performed within MATLAB to better analyze exploration results. % Program to automatically read a SEGY file % The function returns a matrix of seismic traces containing amplitude data % along with corresponding time vector t % The implementation allows easy extension of additional variables as needed % Reference: SEG digital tape standards documentation % Input file must include full path with standard .sgy extension Key Technology Reading seismic data represents one of our core technical capabilities. We utilize MATLAB to read SEGY format seismic data files for improved analysis of exploration results. The primary function mat = segyread(fid) implements the data reading process, where fid represents the file identifier. This function handles SEGY file header parsing, trace data extraction, and format conversion to MATLAB-compatible matrices. The implementation follows standard SEG-Y revision 1 specifications for proper binary data interpretation and endianness handling. Subsequent data processing operations can be performed on the returned matrix for advanced seismic analysis.