| To satisfy communication with satellite in movement, ship-borne antenna stabilized tracking system is studied in this paper. The system design and system buildup are presented. After analyzing compensation conditions for 3-axis stabilization to overcome disturbance from ship surge, sway and yaw, two control strategies-feed-forward compensation and closed-loop feedback compensation-are given. These two strategies are applied to antenna stabilized tracking system with good performance. Intelligent PID is used in closed-loop feedback compensation to get high tracking precision and rapid response. Now, the ship-borne antenna stabilized tracking system has achieved anticipated requirements. |
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