An Experimental Investigation of VHF Radio Wave Diffraction Caused by Auroral Ionospheric Irregularities |
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A₁ A₂ absorption event Agincourt angle antenna and transmission antenna gains autocorrelation function bandwidth coherence correlation function corresponding deflection degree of coherence detailed correlation diffracting layer diffracting screen diffraction field electron precipitation electronics equalization enhanced scintillation Equivalent Circuit F₂ fadeout Figure 22 Flare Index four interferometers frequency fringe visibility geophysical and solar greater than unity Histogram of ز Index at Agincourt indicated interfero interferometer antennas interferometer observations interferometer records interferometer system ionosphere K-index lower culmination magnetic activity magnetic disturbances mean square amplitude mean square phase Meanook meters multiple scattering oscillator signal Planetary Index plots points preamplifiers probability density function radians radiometer receiver input result riometer scale scatter diagrams scintillation activity shown in Figure signal amplitude solar activity solar events Sporadic-E square amplitude fluctuation square phase fluctuation standard deviation Table tion transmission line equalization versus Magnetic Index Whale River