Accession Number : ADA183969

Title :   Estimates of Satellite EHF Communication Outages Due to Attenuation by Rain.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE GEOPHYSICS LAB HANSCOM AFB MA

Personal Author(s) : Tattelman,Paul ; Knight,Richard W ; Scharr,Kathryn G

PDF Url : ADA183969

Report Date : 05 Mar 1987

Pagination or Media Count : 39

Abstract : This report provides estimates of outage frequencies, durations, and probabilities at eight United States locations for a satellite EHF communication system employing a frequency of 30 GHz and a fade margin of 15 dB. Ten years of 1-min rain rates at each location were used in conjunction with a attenuation model to make the estimates. One-min rates are recognized as most practical for these calculations, but are ordinarily unreadable from original recordings is described. Analyses of the 1-min rain rates and outage estimates for elevation angles of 10 deg, 30 deg, 50 deg, and 70 deg are presented. Keywords include: Rainfall, Attenuation, EHF communications, and Satellite communications.

Descriptors :   *EXTREMELY HIGH FREQUENCY, *RAINFALL, *SATELLITE COMMUNICATIONS, *ATMOSPHERIC ATTENUATION, ATTENUATION, MODELS, ELEVATION, ARTIFICIAL SATELLITES, POSITION(LOCATION), UNITED STATES, RADIO WAVES

Subject Categories : Radiofrequency Wave Propagation
      Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE