Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"antenna positioner"”.
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Development of a feedback controller for the Antenna Positioner on the MeerKAT Radio Telescope
… of 64 individual 13.5 m diameter fully steerable antennas. This project presents a comprehensive approach to the modelling and design of a feedback control system for a MeerKAT antenna. The project first focuses on modelling of the antenna's mechanical dynamics in its two axes of motion: azimuth …
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Inertially stabilized platforms for SATCOM on-the-move applications : a hybrid open/closed-loop antenna pointing strategy
… high data-rate communications require inertial antenna pointing to within fractions of a degree. The base motion of the antenna platform complicates the pointing problem and must be accounted for in mobile SATCOM applications. Antenna Positioner Systems (APSs) provide Inertially Stabilized …
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The development and validation of an X-band dual polarization Doppler weather radar test node for a tropical network
… and signal processing sub-systems, and the antenna positioner and control sub-system. The development and validation process included integration, sub-system calibration and test, and a final evaluation by conducting end-to-end calibration of the radar system. Validation of the calculated …
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Design and Verification of a LabVIEW Automated Antenna Radiation Pattern Measurement System
… to advance student education in the areas of antennas and wireless communications. An anechoic chamber is a room designed to suppress electromagnetic radiation reflections so that accurate measurement of radio frequency (RF) systems such as wireless radios and antennas can take place. Despite …
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Channel Probing for an Indoor Wireless Communications Channel
… the performance of spatial diversity in receive antenna configurations. The model presented by Saleh and Valenzuela, was added to by Spencer et. al., and included all three of these parameters for a 7 GHz channel. A system was built to measure these multipath parameters at 2.4 GHz for multiple …