Zobrazeno 1 - 10
of 16
pro vyhledávání: '"H. E. Whitney"'
Publikováno v:
Radio Science. 18:421-434
In a program designed to compare measurements of scintillation activity in the equatorial anomaly region, observations were made of satellite beacon signals transmitting at frequencies ranging from 137 MHz to 7 GHz. Recordings were made at Ascension
Publikováno v:
Journal of Geophysical Research. 81:2051-2057
This paper presents an analysis of ionospheric scintillation data which shows that the underlying statistical structure of the signal can be accurately modeled by the additive complex Gaussian perturbation predicted by the Born approximation in conju
Autor:
Santimay Basu, H. E. Whitney
Publikováno v:
Radio Science. 18:263-271
The temporal structure of weak and strong intensity scintillations observed with a geostationary satellite at 249 MHz near the magnetic equator is studied. It is shown that for weak intensity scintillations, the power spectra exhibit an asymptote imm
Publikováno v:
Geophysical Research Letters. 8:277-280
Polar cap ionospheric irregularities have been monitored for several years from Thule Air Base, Greenland using 250 MHz satellite beacon scintillation measurements. The seasonal pattern of the polar cap irregularities shows very high intensity levels
Autor:
Santimay Basu, H. E. Whitney
Publikováno v:
Radio Science. 12:123-133
Periods of intense ionospheric scintillations were analyzed in order to provide information for the design and evaluation of the performance of satellite communication links. Scintillation data were available for the auroral and equatorial regions. T
Publikováno v:
Radio Science. 20:347-356
The first long-term measurements of phase scintillations at high latitudes from a quasi-stationary Air Force satellite at 250 MHz are reported. The measurements were made from Goose Bay, Labrador covering the corrected geomagnetic latitude range of 6
Publikováno v:
Radio Science. 20:357-365
Three years' scintillation measurements taken at Ascension Island have been reduced and are presented here. The 1.5-GHz and 257-MHz signals of Marisat were supplemented by 3.9-GHz observations during January–May 1981. While their temporal patterns
Publikováno v:
Journal of Geophysical Research: Space Physics. 85:139-149
Using scintillation observations from a series of equatorial propagation paths as well as backscatter and airglow data, the development, motion, and decay of equatorial irregularity patches have been studied. Assembling the results of earlier studies
Publikováno v:
Canadian Journal of Physics. 43:1050-1058
Amplitude scintillations of the radio energy from the galactic radio source Cassiopeia A were examined for the total solar eclipse of July 20, 1963, using the 150-foot parabolic antenna at the AFCRL Sagamore Hill Radio Observatory, Hamilton, Massachu
Autor:
J. A. Klobuchar, H. E. Whitney
Publikováno v:
Radio Science. 1:1149-1154
The total electron content of the ionosphere’ was measured continuously from a northern midlatitude station during the summer of 1965 by monitoring the polarization twist of VHF radio signals from the Early Bird synchronous satellite. The ambiguity