Abstract:A nondestructive evaluation (NDE) method is developed to detect the dielectric constant and surface roughness of concrete highway pavement. The system is based on Leader's slope-expansion scattering theory. Different from most other scattering theories, the slope-expansion method does not pose stringent requirements about the nature of the rough surface. Yet, it can calculate the in-plane scattered field (or power), including the nonzero slope terms up to the second order. The explicit expression of the scatte… Show more
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