Design and Realization of a Dual-Motor Driving Servo System for a 2D Precise Test Turntable

This paper describes the design principle and key technology of a 2D precise turntable for radar antenna testing.In the design,two motors are used to drive the turntable basing on 80C196 and EPLD to improve the accuracy of the azimuth determination.Besides,the digital design method improves the cap ability of anti-jamming,enhances the advantage of system HMI and extendability.The long time period of being used for antenna testing in microwave anechoic chamber has proved the excellent practicability and reliability of this 2D precise test turntable.