Open AccessSimulation of the radar signal reflection from the lunar surface
Author(s) -
O. V. Yushkova,
Viacheslav Iushkov,
R. A. Rudamenko
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1632/1/012014
Subject(s) - radar , reflection (computer programming) , depth sounding , geology , signal (programming language) , remote sensing , surface (topology) , dispersion (optics) , spacecraft , geophysics , optics , physics , computer science , geometry , telecommunications , oceanography , mathematics , astronomy , programming language
To determine the structure and mineralogical composition of lunar subsurface a radar complex RLK-L will be installed on the “Luna-26” spacecraft. The inverse problem solution of subsurface sounding will be more accurate if all factors affecting the shape of the reflected signal are taken into account. Topography is one such factor. The article deals with modelling the reflection of a radio signal from a rough surface. An analysis of a series of numerical experiments showed that destruction of high frequency part of the spectrum depends on the dispersion of the inhomogeneities’ heights in reflection spot. The simulation results are consistent with previously performed experimental measurements and well-known theoretical estimates. Therefore, in radar experiments, it makes sense to first analyze the signals reflected from smooth areas, then from the area in which a three-dimensional digital model of lunar surface reveals the presence of depressions, and then areas with mountain ranges.