Ice-crystal depolarisation on satellite-earth microwave radio paths

This paper reviews the experimental measurement of crosspolarisation on satellite-earth paths, describes the identification of previously unexpected depolarisation by ice crystals, and outlines the theoretical explanations of ice depolarisation which have been reported in the literature. It summarises what is known, and what is not yet understood, about ice-crystal depolarisation. The paper discusses the implications of ice-crystal depolarisation for satellite communications system design.

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