Techniques for Adaptive Control of Diffraction Mode and Troposcatter Antennas.
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J
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Beyond the horizon radio communications via troposcatter or diffraction modes are frequently troubled by bending of the RF rays due to changes in the atmospheric index of refraction. This can cause the received angle of arrival to appear outside the antennas main lobe. A possible solution is to adapt the antennas response to these changes. This report discusses possible state-of-the-art techniques, tradeoffs, potential problems and cost aspects for developing an adaptive antenna control system for use on existing troposcatterdiffraction mode antenna dishes. Author
- Radio Communications