A HYBRID MODULATION FOR THE DISSEMINATION OlF
نویسنده
چکیده
Ohio University is continuing to conduct research to improve its system for weather data dissemination to aircraft. The current experimental system transmits compressed weather radar reflectivity patterns from a ground based station to aircraft. qlthough an effective system, the limited frequency spectrum does not provide a channel for transmission. This introduces the idea of a hybrid modulation. The hybrid technique encodes weather data using phase modulation (PM) onto an existing aeronautical channel which employs amplitude modulation (AM) for voice signal transmission. Ideally, the two modulations are independent of one another. The planned implementation and basis of the system are the subjects of this paper.
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تاریخ انتشار 2009