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preliminary experiments for the assessment of vw-band links for space-earth communicationsSince September 2012, NASA Glenn Research Center has deployed a microwave profiling radiometer at White Sands, NM, to estimate atmospheric propagation effects on communications links in the V and W bands (71-86GHz). Estimates of attenuation statistics in the millimeter wave due to gaseous and cloud components of the atmosphere show good agreement with current ITU-R models, but fail to predict link performance in the presence of moderate to heavy rain rates, due to the inherent limitations of passive radiometry. Herein, we discuss the preliminary results of these measurements and describe a design for a terrestrial link experiment to validaterefine existing rain attenuation models in the VW-bands.
Document ID
20140012572
Document Type
Presentation
Authors
Nessel, James A.
(NASA Glenn Research Center Cleveland, OH United States)
Acosta, Roberto J.
(NASA Glenn Research Center Cleveland, OH United States)
Miranda, Felix A.
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
September 24, 2014
Publication Date
July 12, 2013
Subject Category
Communications and Radar
Report/Patent Number
GRC-E-DAA-TN10202
Paper 2630
Meeting Information
2013 IEEE International Symposium on Antennas and Propagation(Lake Buena Vista, FL)
Funding Number(s)
WBS: WBS 405034.04.02.02.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
terrestrial milimeterwave experiments
radiometric characterization.
RF Propagation

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