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.
RadarElevation axisElectro-mechanics servoFuzzy PID control
NETL
NSTL
维普
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