Satellite-ground radio systems are now so sensitive that ionospheric changes can disrupt their performance. This paper discusses some satellite-to-ground propagation problems in the UHF and L bands caused by the Earth's ionosphere. Such problems include signal time delay, signal dispersion, Faraday rotation, and scintillation.
Hui ZhaoAntonio Bazco-NoguerasPetros Elia
Makoto YoshikawaMyrna Yoshie Kagohara