NDLI: Determination of the ionospheric electron content utilizing satellite signals

Content Provider	IEEE Xplore Digital Library
Author	Arendt, P.R. Papayoanou, A. Soicher, H.
Copyright Year	1963
Abstract	Various methods for the determination of the ionospheric electron content are possible when satellite-borne signals can be used. The paper compares the results from Doppler shift, Faraday rotation, Doppler data combined with Faraday rotation data, and topside and bottomside soundings. The often neglected prerequisite for the application of Doppler and Faraday methods is radio propagation along the same ionospheric path for the different frequencies involved. Criteria for correct application are discussed. The comparison of inflection time moments is chosen for data selection. The usage of the Doppler slopes at the time of simultaneous inflection provides reliable data of the electron content. The diurnal variation is given. The Faraday rotation rate measurement has been made a continuous one by special equipment of G. Vogt. The simultaneous use of two Doppler slopes at different frequencies and of the Faraday rotation rate at one of these frequencies results in the measurement of the effective component of the geomagnetic field. Thus, a method free from any assumptions is on hand for the electron content. From the radio-frequency sounding of the topside-sounder satellites and from simultaneous bottomside soundings a complete ionospheric profile is obtained, the integration of which results in data for the total content. A comparison of the results of the different methods is permitted within the limitations brought about by the various theoretical and experimental assumptions made.
Sponsorship	IEEE Publication
Starting Page	268
Ending Page	277
Page Count	10
File Size	1094930
File Format	PDF
ISSN	00189219
Volume Number	53
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1965-03-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Satellite broadcasting Geomagnetism Equations Rotation measurement Frequency measurement Doppler shift Radio propagation Radio frequency Satellite ground stations
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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