Angular Scattering Law

Echoes from the Moon, Mercury, Venus, and Mars are characterized by sharply peaked OC echo spectra (Fig. 11), Although these objects are collectively referred to as quasispecular radar targets, their echoes also contain a diffusely scattered component and have full-disk circular polarization ratios averaging about 0.07 for the Moon, Mercury, and Venus, but ranging from 0.1 to 0.4 for Mars, as discussed below. 

Typical rms slopes obtained at decimeter wavelengths for these four quasispecular targets are around 7° and 

So(e) = xaoip(e) + (1 - x)aQs(9). Here ctqs(6 ) might be the Hagfors law and usually tdif( ) cos 6 when this is done, estimated values of m usually fall between unity (geometric scattering, which describes the optical appearance of the full Moon) and 2 (Lambert scattering). 

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