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An experimental study of the temporal statistics of radio signals scattered by rainA fixed-beam bistatic CW experiment designed to measure the temporal statistics of the volume reflectivity produced by hydrometeors at several selected altitudes, scattering angles, and at two frequencies (3.6 and 7.8 GHz) is described. Surface rain gauge data, local meteorological data, surveillance S-band radar, and great-circle path propagation measurements were also made to describe the general weather and propagation conditions and to distinguish precipitation scatter signals from those caused by ducting and other nonhydrometeor scatter mechanisms. The data analysis procedures were designed to provide an assessment of a one-year sample of data with a time resolution of one minute. The cumulative distributions of the bistatic signals for all of the rainy minutes during this period are presented for the several path geometries.
Document ID
19740004732
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hubbard, R. W. (Office of Telecommunications Boulder, CO, United States)
Hull, J. A. (Office of Telecommunications Boulder, CO, United States)
Rice, P. L. (Office of Telecommunications Boulder, CO, United States)
Wells, P. I. (Office of Telecommunications Boulder, CO, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1973
Subject Category
Communications
Report/Patent Number
NASA-CR-136275
OT-15
Accession Number
74N12845
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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