GPR Fundamentals 2

Learn how to apply the RadRay Model to interpret GPR images (radargrams) and the features within it.

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A few more words about this course

Now that the student understands the physics of GPR, and more importantly, the RadRay Model, we can use it to construct the features that show up on the radargram. A feature is any recognizable shape in a radargram.

We start by taking apart the most famous feature - the hyperbola. It's as famous as it is misunderstood.
Yes, crossing a rebar at 90 degrees will generate a hyperbola. But beyond that, the usual explanations of a hyperbola's shape and properties are dubious at best. Does this misunderstanding matter when scanning concrete? Absolutely!

Once the hyperbola has been deconstructed, the other features are more easily understood. They all share some aspects with the hyperbola and how it's generated.
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