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Note: This module is deprecated and is retained for legacy workflow compatibility only.
Resamples a pre-stack seismic gather onto a regular, user-defined offset grid. For each target offset in the output grid, the module searches the input gather for the nearest trace within a configurable search tolerance and copies that trace to the output. If no input trace falls within the search window for a given output offset, a zero-amplitude trace is inserted at that position.
The input pre-stack seismic gather to be resampled. Traces must carry valid offset header values, as the module uses the offset attribute to locate and assign each trace to the nearest output offset position.
Starting offset of the output grid (metres). Defines the offset assigned to the first output trace. Set to match the near-offset of your acquisition geometry.
Ending offset of the output grid (metres). Input traces with offsets beyond this value are not included in the output. Together with Minimum offset and Step offset, determines the total number of output traces.
Spacing between consecutive output offset positions (metres). A typical starting value is the nominal receiver group interval of the survey. Set Delta offset to approximately half this value to avoid overlapping search windows between adjacent output positions.
Search half-window around each output offset position (metres). Accepts any input trace whose offset falls within [output offset - Delta offset, output offset + Delta offset]. The trace closest to the target is selected. If no trace falls within this window, a zero-amplitude trace is written. Recommended: set to approximately half the Step offset.