Journal ArticleDOI
An interpretation of asymmetric cross-correlation functions in D-and lower E-region drift measurements
A Haug,H Pettersen +1 more
TLDR
In this paper, it was demonstrated that a small number of individual screens moving with different velocities may explain many of the observed asymmetric cross-correlation functions when the spaced receiver method of drift measurements is applied to reflections from the D- and E-regions.About:
This article is published in Journal of Atmospheric and Solar-Terrestrial Physics.The article was published on 1970-03-01. It has received 11 citations till now. The article focuses on the topics: Correlation function (statistical mechanics) & Radio wave.read more
Citations
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Journal ArticleDOI
The angular distribution of radio waves partially reflected from the lower ionosphere
Robert A. Vincent,J.S Belrose +1 more
TL;DR: In this article, measurements of radio waves partially reflected from the D-region made using two antennae of very different beamwidth are reported, where the arrays are composed of 40 and 4 dipoles respectively.
Journal ArticleDOI
Radar measurements of aspect sensitivity of atmospheric scatterers using spaced-antenna correlation techniques
TL;DR: The theory of spaced-antenna techniques for the measurement of aspect sensitivity of radar backscatter from the atmosphere is considered in this article, where correlation measurements made on the wave field can be used to determine the angular power spectrum of the returned energy in much the same way that aperturesynthesis techniques are used in radio astronomy.
Journal ArticleDOI
Estimates of momentum flux in the mesosphere and lower thermosphere over Adelaide, Australia, from March 1985 to February 1986
TL;DR: In this article, a method of determining the pointing direction of a radar beam from the spatial correlation function of the echoes is presented and applied to a data set that spans a year beginning in March 1985.
Journal ArticleDOI
MF Doppler and spaced antenna radar measurements of upper middle atmosphere winds
TL;DR: In this article, upper mesospheric and lower thermospheric wind velocities obtained simultaneously over six days with MF Doppler and Spaced Antenna (SA) radars at Adelaide, Australia in November 1980 are presented.
Journal ArticleDOI
Some aspects of ionospheric drifts using partial and total reflections from the lower ionosphere
M.G Golley,D.E Rossiter +1 more
TL;DR: In this article, the effect of the receiver triangle size on the drift parameters derived from full correlation analysis is investigated, when partial reflections from altitudes near 90km are used, and it is found that, for frequencies near 2 MHz, the scale of the diffraction pattern on the ground is of the order of 100 m.
References
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Journal ArticleDOI
Seasonal variation of southern hemisphere mid-latitude winds at altitudes of 70–100 km
TL;DR: In this article, the authors used the spaced receiver method of measuring ionospheric drifts to investigate atmospheric motion between 65 and 100 km at 44°S lat. The results of the measurements were used to provide a good estimate of the monthly mean zonal wind.
Journal ArticleDOI
The Measurement of Atmospheric Winds at Altitudes of 64–120 km Using Ground-Based Radio Equipment
Journal ArticleDOI
Analysis of artificial fading records
D. Jones,A.D. Maude +1 more
TL;DR: In this article, it was shown that the velocities obtained in Mitra type drift experiments will correspond to the velocity of the higher frequencies present if optical correlation is used in the analysis, and to a velocity averaged over all frequencies if numerical correlation was used.
Journal ArticleDOI
The variation of the shape of cross-correlation curves with receiver separation in spaced receiver ionospheric drift measurements
W.H. Down,A.D. Maude +1 more
TL;DR: In this paper, the movement of the signal strength over the ground of a radio wave after reflection from the ionosphere is considered, and it is shown that if this pattern suffers dispersion, with different wavelengths moving at different velocities, the correlation-delay curve between two points varies with separation of the two points in the same way as the form of a wave packet moving through a dispersive medium varies with time.
Related Papers (5)
Irregularity drift velocity estimates in radar auroral backscatter
A.V. Kustov,Christos Haldoupis +1 more