Download or read book A Study of Lunar Surface Radio Communication written by Lewis E. Vogler and published by . This book was released on 1964 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of point-to-point radio communication on the moon is discussed, and equations and curves are presented to estimate power requirements in lunar communication systems.Assuming a smooth surface, consideration is given to ground wave attenuation over both layered and non-layered grounds, antenna ground losses in situations where ground screens are impractical, noise level estimates in the receiving system, and the effects on propagation of possible lunar ionospheres.An example of the calculation of required power for a particular communication system is given, and further studies are suggested. (Author).
Download or read book A study of lunar surface radio communication written by Lewis E. Vogler and published by . This book was released on with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Lunar Surface Radio Communication written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Lunar Surface Radio Communication written by Lewis E. Vogler and published by . This book was released on 1964 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of point-to-point radio communication on the moon is discussed, and equations and curves are presented to estimate power requirements in lunar communication systems.Assuming a smooth surface, consideration is given to ground wave attenuation over both layered and non-layered grounds, antenna ground losses in situations where ground screens are impractical, noise level estimates in the receiving system, and the effects on propagation of possible lunar ionospheres.An example of the calculation of required power for a particular communication system is given, and further studies are suggested. (Author).
Download or read book Long Range Transhorizon Lunar Surface Radio Wave Propagation in the Presence of a Regolith and a Sparse Exospheric Plasma written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-11 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-range, over-the-horizon (transhorizon) radio wave propagation is considered for the case of the Moon. In the event that relay satellites are not available or otherwise unwarranted for use, transhorizon communication provides for a contingency or backup option for non line-of-sight lunar surface exploration scenarios. Two potential low-frequency propagation mechanisms characteristic of the lunar landscape are the lunar regolith and the photoelectron induced plasma exosphere enveloping the Moon. Although it was hoped that the regolith would provide for a spherical waveguide which could support a trapped surface wave phenomena, it is found that, in most cases, the regolith is deleterious to long range radio wave propagation. However, the presence of the plasma of the lunar exosphere supports wave propagation and, in fact, surpasses the attenuation of the regolith. Given the models of the regolith and exosphere adopted here, it is recommended that a frequency of 1 MHz be considered for low rate data transmission along the lunar surface. It is also recommended that further research be done to capture the descriptive physics of the regolith and the exospheric plasma so that a more complete model can be obtained. This comprehensive theoretical study is based entirely on first principles and the mathematical techniques needed are developed as required; it is self-contained and should not require the use of outside resources for its understanding. Manning, Robert M. Glenn Research Center NASA/TM-2008-215463, E-16680 RADIO TRANSMISSION; WAVE PROPAGATION; RADIO WAVES; MOON; SURFACE WAVES; LUNAR SURFACE; DATA TRANSMISSION; WAVEGUIDES; TOPOGRAPHY; REGOLITH; TERRAIN; LUNAR ROCKS; EXOSPHERE
Download or read book Lunar Surface Studies written by and published by . This book was released on 1962 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lunar Sourcebook written by Grant Heiken and published by CUP Archive. This book was released on 1991-04-26 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.
Download or read book Lunar Radio Emission written by V. S. Troitskiy and published by . This book was released on 1964 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio Frequency and Optical Communication Link Trade Studies Between Earth Deep Space Gateway and Lunar Surface written by Stephanie L. Booth and published by . This book was released on 2019 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Monograph written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lunar Surface Transmission Loss for the Apollo Astronaut written by Jefferson F. Lindsey and published by . This book was released on 1968 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lunar Surface Studies written by and published by . This book was released on 1964 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research written by United States. National Bureau of Standards and published by . This book was released on 1965 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Radio Communication VIA the Moon written by M. L. Barasch and published by . This book was released on 1958 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP written by and published by . This book was released on 1967 with total page 2098 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An assessment of lunar surface operations and its application to communications modeling written by Lisa Yvonne Bell and published by . This book was released on 1992 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1965 with total page 1776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
