PROJECT TITLE :
An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance
With increasing interest in the application of large beam waveguide antenna operated at high frequencies, the need for pointing accuracy becomes additional demanding. Owing to wind disturbance inevitably inflicting sure reflector surface distortions that result in a pointing error, the overall antenna performance decreases. To decrease the pointing deviation, this study analyzes the pointing error caused by the structural deformation beneath wind disturbance and proposes a unique real-time pointing error correction system (RPECS) by designing the configuration of a lively management beam waveguide with a true-time position adjustable plate mirror (APM). Through inverse displacement analysis, the pointing errors ensuing from reflector surface distortions are compensated through properly adjusting the position of the APM. A displacement amplification factor is meant to ensure that the displacement of the APM should fall at intervals the driving stroke range. Using a 65-m S/X band antenna, the simulation results show that the root-mean-square pointing error with RPECS is reduced by 92.6% compared with the traditional control methodology, the gain loss is solely concerning zero.04 dB after compensation.
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