DCA Digital Systems Evaluation -Phase I. Microwave Digital Data Transmission.

摘要

This report presents an in-depth experimental analysis of the transmission of high-quality digital traffic using an FDM type microwave radio system. After describing the equipments and test facility, the area is investigated from the point of the microwave modem's modulator to its demodulator. This establishes the basic capabilities and limitations entailed in the passing of digital traffic in the FDM radio system environment. then performance parameters are obtained for typical digital systems configurations to be expected within the terrestrial DCS. A comparison of results evidences any degradation caused by the digital equipments. The overall emphasis is on determining what can be done with existing equipments and forming a foundation for overcoming existing technological deficiences rather than on developing optimized systems. (Author)