Migration (GPR)
Definition
A processing algorithm that collapses hyperbolic reflections back to their true point positions. Migration requires a velocity model; with the correct velocity it sharpens subsurface images; with an incorrect velocity it can introduce artefacts or under-collapse the hyperbolas.
Related terms
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- Cheetham 2005 framework
- A published methodological framework (Cheetham, P. 2005, Forensic Geophysical Survey) that sets out survey standards, processing requirements, anomaly classification criteria, and report...
- De-striping
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- Interpolation and gridding
- The process of estimating values between measured points to create a continuous surface or image from discrete survey transects. Common algorithms include...
- Zero-time correction
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Explained in
- Geophysical Data Processing and InterpretationA processing algorithm that collapses hyperbolic reflections back to their true point positions. Migration requires a velocity model; with the correct velocity...