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.
An Electrostatic-Wave Topside Sounder
IEEE Transactions on Aerospace and Electronic Systems ; AES-8 , 6 ; 712-720
1972-11-01
4082606 byte
Article (Journal)
Electronic Resource
English
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