Yielectric coatings on vehicles can alter their radar image significantly. this proposal is directed to determining numerically the reflectivity for an object covered by a dielectric layer. a calculation will be done using basic physical principles to define the theoretical boundary value problem… More

An algorithm is developed for application in a ray tracing program to provide the amplitude, polarization, and phase of an electromagnetic wave reflected from a dielectric body. two different configurations are used. the first consists of an absorptive dielectric body and the second of a dielectric… More

Surface roughness affects both the shape of an ultrasonic impulse transmitted through an interface and its power spectrum. to fully apply advanced signal analysis techniques to determining quantitative information about defects and imperfections it is necessary to compensate for the frequency… More

We propose to develop a simple to use, quantitative device to accurately measure soil water content with sufficient resolution to define wetting fronts due to rain events in depth profiles. this geophysical tool senses change in the electromagnetic environment, specifically the dielectric constant… More