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Authors: Sciacca, U.* 
Bianchi, C.* 
Zuccheretti, E.* 
Title: L'uso della polarizzazione dell'eco nei sondaggi ionosferici
Issue Date: 2007
Series/Report no.: 50 / (2007)
Keywords: ionosfera
Subject Classification01. Atmosphere::01.02. Ionosphere::01.02.06. Instruments and techniques 
Abstract: While performing an ionospheric sounding the information brought by the polarisation of the received echo is not essential. In fact, the "AIS" ionosonde [Arokiasami 2002], developed at INGV in the recent years, does not allow for this piece of information but it is able to generate good quality ionograms, from which it is possible to discriminate between the ordinary and the extraordinary ray. Anyway, if the polarisation information is available the automatic scaling of the ionograms can be more effective. This work consists of some theoretical and technological considerations, fundamental to the development of an improved ionosonde model, that has been carried on at INGV. The magnetoionic theory of propagation of radio waves into the ionosphere is assumed as known; so only some concepts concerning more tightly the waves polarisation and the creation of the ordinary and the extraordinary rays are developed; eventually the practical ways by which it is possible to discriminate them by means of a sounding instrument are described.
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