Interpretation of the Apollo Lunar Surface Data Using the Unified and the Two Scale Full Wave Approach.

摘要

Bistatic radar experiments carried out by Tyler and Howard during the Apollo 16 mission provide a very useful data set with which to compare theoretical models and experimental data. These bistatic radar experiments provide data on the quasi-specular scattering cross sections of the Moon's surface for angles of incidence between 12 deg and 87.5 deg. Recently Vesecky et al. (1988) used the Apollo data to examine different analytical models of electromagnetic wave scattering at near grazing incidence (82 deg to 87.5 deg) from gently undulating rough surfaces. In their work they have accounted for local surface self shadowing due to surface roughness and also introduced a factor to account for bulk shadowing due to the Moon's finite radius of curvature. They report that the model of Smith and Vesecky compares favorably with the experimental data for angles of incidence between 82 deg and 87.5 deg. Keywords: Reprints, Remote sensing. (KR)