A high frequency inverse scattering model to recover the specular point curvature from polarimetric scattering matrix data

• Published in: IEEE transactions on antennas and propagation Vol. 32; no. 11; pp. 1174 - 1178
• Main Authors: Bing-Yuen Foo, Chaudhuri, S., Boerner, W.-M.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.11.1984; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Diffraction, scattering, reflection; Electromagnetic scattering; Exact sciences and technology; Frequency; Integral equations; Inverse problems; Optical scattering; Optical surface waves; Physical optics; Radar polarimetry; Radar scattering; Radiocommunications; Radiowave propagation; Telecommunications; Telecommunications and information theory; Testing; Diffusion matrix; Wave scattering; Radar; Polarimetry; Revolving body; Curvature; Ellipsoid; Electromagnetic wave; Inverse problem
• ISSN: 0018-926X; 1558-2221
• DOI: 10.1109/TAP.1984.1143245

Based on the time-domain first-order correction to the physical optics current approximation, a relationship between the phase factors of the polarimetric scattering matrix elements and the principal curvatures at the specular point of a scatterer is established. The above phase-curvature relationship is tested by applying it to theoretical as well as experimental backscattering data obtained from a prolate spheroidal scatterer. The results of these tests not only determine the acceptability of the phase-curvature relationship; they also point out the spectral range over which the first-order correction to the physical optics currents is valid.