Accession Number:

ADA061089

Title:

Report on Peru Scintillation Tests - October 1976 and March 1977.

Descriptive Note:

Air Force surveys in geophysics,

Corporate Author:

AIR FORCE GEOPHYSICS LAB HANSCOM AFB MASS

Report Date:

1977-12-08

Pagination or Media Count:

142.0

Abstract:

A large scale test program was developed jointly by AFGL and AFAL to evaluate the effects of equatorial ionospheric irregularities on UHF 250 MHz satellite communications to map the temporal and spatial extent of the equatorial scintillation region, and to determine the geophysical mechanisms leading to the formation of irregularities in the equatorial ionosphere and thus to scintillations. Of specific interest were scintillation characteristics and effects observed by airborne terminals and their relation to simultaneously obtained results from ground based terminals. The test results are based on radio propagation and geophysical measurements conducted from ground and airborne stations and show the general scintillation patterns, latitudinal dependence, heading dependence and signal statistics. Backscatter measurements from the Jicamarca radar and optical observations from the all sky imaging photometer show the development and motion of the irregularity structure. Scintillation plots for several satellites received at the ground stations and on the aircraft are included. Author

Subject Categories:

  • Atmospheric Physics
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE