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JEES, vol. 17, no. 3, pp.120-125, July, 2017
DOI. http://dx.doi.org/10.5515/JKIEES.2017.17.3.120

Monopulse Tracking Performance of a Satcom Antenna on a Moving Platform

Gyuhan Cho* ∙ Gwang Tae Kim
Agency for Defense Development

A satellite communication (Satcom) antenna mounted on a moving platform provides a controlled heading that enables a geosynchronous satellite to communicate with the ground. A monopulse tracking method is effective for antenna control on a vehicle when it vibrates severely. However, this method has unexpected obstacles and its control performance is insufficient. To improve its control performance, the control command and monopulse error, the signal delay, and the radome effect are evaluated through tests. The authors then propose a method to transform the antenna error from 3D coordinates to 2D antenna coordinates. As a result, the antenna control performance is improved. As indicated in this study, examining antenna systems using the monopulse method on moving platforms is possible by understanding the antenna test process.

Keyword : Geosynchronous Satellites, Inertially Stabilized Platform, Monopulse Signal, Moving Platform, Radome, Satcom Antenna.

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