Abstract The principal possibility to measure the plasma density and its fluctuations in the ionosphere on ultra-small space vehicles using radiophysical methods is shown. These methods allow us to determine the characteristics of the medium by the properties of the received radiation. It is assumed that each small spacecraft has a satellite navigation receiver as well as a device for emitting and detecting a signal at two multiple frequencies in the radio band. In this approach, information on plasma density is contained in the received phase difference. Radio receivers and radio transmitters on satellites constantly exchange radio signals and then it is possible to determine the plasma density and its fluctuations from the phase shift. Numerical estimates are also made to determine the maximum distance between satellites where one can reliably receive a radio signal.

    Highlights Use of radio signal exchange on ultra-small spacecrafts gives ionospheric information. It is possible to measure plasma density and its fluctuations along satellite-satellite line. If a phase shift is too large it is possible to estimate plasma density fluctuations. Maximum distance between satellites to reliably receive a radio signal is estimated.


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    Title :

    Studies of the ionosphere using radiophysical methods on ultra-small spacecrafts


    Contributors:

    Published in:

    Acta Astronautica ; 167 ; 455-459


    Publication date :

    2019-11-24


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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