Title :
An Electrostatic-Wave Topside Sounder
Author :
Thompson, Thomas L.
Author_Institution :
Aeronomy Laboratory National Oceanic and Atmospheric Administration Boulder, Colo. 80302
Abstract :
An electrostatic-wave topside sounder has been flown to study electron plasma resonances. Unique features of this sounder are the preservation of data spectra, a frequency synthesizer, and a gain-change mechanism. Preservation of the spectra provided frequency information with a resolution of a few hundred hertz by use of a fast Fourier transform while the synthesizer provided the necessary frequency stability. The gain-change mechanism provided information on the strength of the resonances. Resulting data support the electrostatic-wave echo theory of topside resonances.
Keywords :
Density measurement; Electrons; Electrostatic measurements; Frequency synthesizers; Ionosphere; Radio frequency; Radio transmitters; Resonance; Sea measurements; Temperature measurement;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1972.309601
