helpplease

Hello, thank you for your reply. Could you explan this image to simply understand this? What does this mean? Its also a sentence where it says: The truncation of this Taylor expansion leads to inaccuracies considering large apertures in the midpoint and offset domain. This is what i asked earlier.

What does "truncation of a taylor expansion" mean? Are someone here familiar with what an aperture is defined as in geophysics?

Hello, What is a point diffractor? Thanks😃

Thank you everyone. I think i understood your explanation.

Hey guys, What does a phase shift of sqrt(i)=45 degrees mean? The context is that it describes distortions made by a phase of sqrt(i) = 45 degrees. I did not understand this sentence, because I did not understand the sqrt(i) =45 degrees. Hope someone can help😇