本文针对大尺寸阵面雷达天线中，俯仰轴旋转控制时受天线风力矩、惯性力矩和摩擦力矩影响过大，从而导致控制稳定性差、控制精度降低的问题，提出一种新的采用伺服电动缸驱动形式的雷达俯仰轴控制结构，将雷达俯仰轴的旋转运动控制转换成电动缸丝杠的直线运动控制，提高了雷达俯仰轴的抗干扰能力和控制稳定性；基于雷达俯仰轴转动和伺服电动缸丝杠直线运动之间的非线性关系，设计了一种自适应模糊PID控制器，实现了雷达俯仰轴的稳定控制，仿真结果验证了所设计控制器的有效性和实用价值。%For improving the control stability and accuracy of radar elevation axis in large aperture antenna array with wind torque, inertia torque, and friction torque, a new structure of radar elevation axis is proposed by using electro-mechanics servo, which could convert the rotation control of radar elevation axis to the rectilinear motion control of electro-mechanics servo. This structure can improve the performance and stability of elevation axis. Then based on the non-linear relationship between the rotation of elevation axis and the screw motion of electro-mechanics servo, the adaptive fuzzy PID controller is designed, which can realize the stability of radar elevation axis. The validity and the practicability of this three-axis tracking strategy are proved from simulation result.
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