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V. M. Smirnov V. N. Marchuk O. V. Yushkova V. V. Abramov A. S. Bazhanov B. S. Lifantsev 《Solar System Research》2010,44(5):423-437
The specific features of the radar sounding of the soil of Phobos during the performance of the Russian Phobos-Grunt project have been considered. The parameters of the long-wave subsurface sounding radar designed in order to study the electrophysical
characteristics of the soil of Phobos, reveal the depth structure, estimate the rock density, and perform radar mapping of
the satellite relief and surface roughness have been justified. The scheme of the experimental sounding of the soil of Phobos
is presented. 相似文献
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Measurements of the dielectric characteristics of lunar soil samples are analyzed in the context of dielectric theory. It has been shown that the real component of the dielectric permittivity and the loss tangent of rocks greatly depend on the frequency of the interacting electromagnetic field and the soil temperature. It follows from the analysis that one should take into account diurnal variations in the lunar surface temperature when interpreting the radar-sounding results, especially for the gigahertz radio range. 相似文献
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Solar System Research - Based on the analysis of the data available in the literature on laboratory measurements of the dielectric characteristics of the lunar soil samples delivered to the Earth... 相似文献
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The problem of radar sounding of the Martian soil from an orbiting spacecraft is analyzed. The influence of the ionosphere on the results of remote sounding is revealed through the results of numerical modeling and actual subsurface soil sounding experiments carried out using the MARSIS radar sounder aboard the Mars-Express spacecraft. A method of correction of the dispersion distortion is proposed and tested through radiolocation of the polar cap on Mars. 相似文献
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V. M. Smirnov O. V. Yushkova I. P. Karachevtseva I. E. Nadezhdina 《Solar System Research》2014,48(3):176-181
Radar sounding of the surface and near-surface layer of the Moon by the RLK-L low-frequency radar complex from the orbiter module is planned for the Moon-Globe Russian mission. To forecast results of radar experiments, a simulation procedure of the reflection of the RLK-L radar signal by the Moon’s surface is designed. The 3D surface model, based on measurement results of the Lunar Orbiter Laser Altimeter (LOLA) of the Lunar Reconnaissance Orbiter mission was used in the calculations. The simulation results showed that the spectrum shape of the reflected signal depends on the relief type in the experimental area. Therefore, when the depth distribution of the permittivity of the geological media is determined, the topographic information should be taken into account. 相似文献
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A. V. Zakharov N. A. Eismont V. M. Gotlib V. M. Smirnov O. V. Yushkova V. N. Marchuk 《Solar System Research》2017,51(5):386-399
The opportunities to study Phobos’ internal structure provided by radio methods are considered in this paper. The necessity of these studies is related to solution of the problem of the origin of the Martian moons. Radiosounding is one of the most efficient methods of analyzing the internal structure of small space objects and, in particular, that of Phobos. The new Boomerang project planned according to the Federal Space Program of Russia for 2016—2025 within the Expedition-M program aimed at the exploration of Phobos and delivery of soil samples from its surface to the Earth, as well as the specifics of a ballistic scenario of this expedition, provide a unique opportunity to carry out radioscopy of this space object to discover the internal structure Phobos and to solve the key problem of its origin. The model of Phobos’ internal structure, radiosounding ballistic conditions, analysis of optimum frequency range of sounding, and key parameters of the device required for the experiment are considered in this paper. The significance of proposed studies and opportunities for their implementation are discussed. 相似文献
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