ACTIVE MICROWAVE IMAGING - A MODEL-BASED APPROACH

A model-based approach to improve the spatial resolution of a buried inhomogeneous object using an active microwave imaging system is discussed. First, by numerically solving an integral equation representing the ideal scattered field of the object, we generate the model. Next using this model we develop an optimal spatial filter to process the measured field. Finally, the so-called inverse problem is solved using an imaging algorithm based on diffraction tomography and Fourier transforms. Experimental results indicate a reasonable performance of the approach.