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Path Loss Prediction Over the Lunar Surface Utilizing a Modified Longley-Rice Irregular Terrain ModelThis study introduces the use of a modified Longley-Rice irregular terrain model and digital elevation data representative of an analogue lunar site for the prediction of RF path loss over the lunar surface. The results are validated by theoretical models and past Apollo studies. The model is used to approximate the path loss deviation from theoretical attenuation over a reflecting sphere. Analysis of the simulation results provides statistics on the fade depths for frequencies of interest, and correspondingly a method for determining the maximum range of communications for various coverage confidence intervals. Communication system engineers and mission planners are provided a link margin and path loss policy for communication frequencies of interest.
Document ID
20070025224
Document Type
Conference Paper
Authors
Foore, Larry (NASA Glenn Research Center Cleveland, OH, United States)
Ida, Nathan (Akron Univ. Akron, OH, United States)
Date Acquired
August 23, 2013
Publication Date
July 1, 2007
Subject Category
Communications and Radar
Report/Patent Number
NASA/TM-2007-214825
E-16017
Meeting Information
Wireless for Space Workshop(Colorado Springs, CO)
Funding Number(s)
WBS: WBS 141141.02.05.03
Distribution Limits
Public
Copyright
Public Use Permitted.

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