Backscattering from an undulating surface with applications to radar returns from the Moon

作者：TOR HAGFORS · 发表于：Journal of Geophysical Research Atmospheres · 年份：1964 · DOI：10.1029/jz069i018p03779 · 被引用次数：218 · 研究领域：Planetary Science and Exploration、Synthetic Aperture Radar (SAR) Applications and Techniques、Underwater Acoustics Research

The backscattering properties of a smoothly undulated surface are discussed by means of a joint distribution of heights and surface slopes. It is shown that only those regions which are tilted so as to be normal to the incident radiation are effective in the backscattering. When this fact is properly accounted for, it is shown that the previously accepted scattering formulas have to be modified somewhat. It is also shown that the difference between the scattering properties of the two principal linear polarizations with respect to the mean surface must be exceedingly small for this kind of surface model.