• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The dynamic behavior of rain attenuation on satellite communication links

Lee, David Wendell January 1983 (has links)
The proposed use of communication satellites operating above 10 GHz has stimulated research into the effects of atmospheric rain and ice on the reception of these signals. This thesis examines the statistics of fade rate, fade duration, and interface intervals on 19 and 28 GHz communication links, at an elevation angle of 45 degrees. The study uses 2 years of data collected from the COMSTAR-D2 experimental propagation beacons at Blacksburg, Virginia. The results are shown to depend on frequency, elevation angle, time of year, rainrate, rainfall amount, and the signal polarization. The results are also shown to depend on the receiver time constants, the data acquisition system sampling rate, and the signal-to-noise ratio. The number of fade events and interface intervals was found to vary slightly when hysteresis was added to the data reduction program. / M.S.

Page generated in 0.0485 seconds