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Modeling and Migration of 2-D Georadar Data: A Stationary Phase Approach

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2 Author(s)
Greenhalgh, S.A. ; Dept. of Phys., Adelaide Univ., SA ; Marescot, L.

This paper presents the basic kinematic and dynamic imaging and migration equations for zero-offset two-dimensional georadar profiling. The kinematic equations are derived from simple considerations of spatial impulse responses and a generating function. The dynamic equations follow from a multidimensional stationary phase approximation to the infinite spectral integrals. They show how the radar signal (amplitude and phase) depends on the shape and curvature of the reflector. The imaging equations are evaluated for the special cases of a point scatterer, a continuous reflector, and a terminating reflector. A general formula is developed by which to migrate an arbitrary shaped event of variable amplitude on the georadar section

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:44 ,  Issue: 9 )