Analysis and Design of Three Loop Radar Servo System for Air Defense Missile

In order to design a radar servo system with satisfactory response for an air defense missile, the three loop form was chosen, and the frequency domain method was used. The design approach and criteria for the three loop radar servo system was outlined in this paper. With the criteria, a servo system was designed. Then the effect of every loop was analyzed. The results shows that, with the frequency domain method and the design criteria, the designed radar servo system can obtain good response and every loop of the three loop form can´t be omitted due to their essential effect.