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Satellite positioning influenced by the ionosphere The ionosphere of the Earth constantly varies, depending on the time of day, the season, the geographical position, and the level of solar activity. This area of the atmosphere consists of several conductive layers that reflect radio waves, a characteristic which is of interest for scientists and engineers, especially in the telecommunications industry. The condition of the ionosphere affects the quality of traditional radio communication. In our space era of satellites, we may wonder whether this ancient way of communicating and the study of the ionosphere are still “current topics”. The answer is definitely yes! The ionosphere, for instance, (strongly) affects the signals that satellites communicate.
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