An analytical theory of electromagnetic wave scattering from an inhomogeneous medium with a slightly rough boundary surface is formulated. Maxwell's equations are solved by using the small perturbation method together with Fourier transform technique. The resulting differential equations are solved by using WKB and variation of parameter methods. Field amplitudes in each medium are determined by taking boundary conditions into account. The expressions for first order polarized radar backscatter cross-section are obtained. The developed model may be able to give useful estimates when applied to sea ice scattering. Numerical calculations are performed for polarized radar backscatter cross-section at two frequencies, 13.3 GHz and 400 MHz.
A theory of wave scatter from an inhomogeneous medium with a slightly rough boundary and its application to sea ice
Eine Theorie der Wellenstreuung von einem inhomogenen Medium mit leicht rauher Grenzflaeche und ihre Anwendung bei der Seeisaufzeichnung
Remote Sensing of Environment ; 7 , 1 ; 37-50
1978
14 Seiten, 12 Quellen
Aufsatz (Zeitschrift)
Englisch
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