| The armed helicopter, developed with modern war, plays an important role in the battlefields. The automatic control system, as a critical technology, has an irreplaceable effect in keeping flight security and promoting attack efficiency. So high-qualified flight control system is necessary for completing the complex flight missions.This paper, in advantage of modern control theories, designed the pitch control system and the altitude holding system of the X armed helicopter, and present digital simulation, coupling analysis, sensitivity analysis, system performance analysis under different input and initial condition. Based on the above analysis, some parameters are carefully adjusted, which make the system gain better performance. Simulation result shows the designed control system achieved the target. |
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