National Taiwan University Department of Electrical EngineeringLi, Hsueh-JyhHsueh-JyhLiFarhat, Nabil H.Nabil H.FarhatShen, YuhsyenYuhsyenShen2006-11-142018-07-062006-11-142018-07-061989http://ntur.lib.ntu.edu.tw//handle/246246/200611150121100The microwave image of a metallic object is interpreted from a new point of view, based on the understanding of the interconnection between the scattering mechanisms, the data acquisition system, and the image reconstruction algorithm. From this understanding we are able to interpret and predict microwave images reconstructed from data collected over specified and angular windows. The connection between a special scattering mechanism, edge diffraction, and its reconstructed image is established. The microwave image of an edge will he two bright points whose locations correspond to the end points of the edge if the normal aspect angle is not included in the angular windows; otherwise a line joining the two end points and representing the edge will appear in the image. Experimental images of a trihedral reflector reconstructed from data collected over different angular windows support this new approach to image interpretation and prediction.application/pdf413553 bytesapplication/pdfzh-TWjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/200611150121100/1/10900.pdf