An Electrostatic-Wave Topside Sounder |
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Authors: | Thompson TL |
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Institution: | Aeronomy Laboratory National Oceanic and Atmospheric Administration Boulder, Colo. 80302; |
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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. |
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