H_∞-Mixed Sensitivity Design of Roll Channel of Bank-to-Turn Autopilot for Small Diameter Bomb  

作　　者：孙瑞胜 薛晓中 胥加成 沈坚平 

机构地区：[1]School of Power Engineering, Nanjing University of Science and Technology [2]No.95865 Unit

出　　处：《Defence Technology（防务技术）》2010年第1期35-38,共4页Defence Technology

基　　金：Sponsored by National Ministries and Commissions Research Program in Advance (102080403)

摘　　要：According to requirements of the bank-to-turn (BTT) control for a small diameter bomb (SDB), the robust design problem for the roll autopilot was studied by H∞-mixed sensitivity control method. A roll channel dynamics model was established. Considering the couple between the yaw and roll channel as uncertain disturbance, the roll autopilot was designed using dual-loop scheme which takes a linear quadratic regulator (LQR) as inner-loop, to ensure the control effect of the certain part in model, and an H∞-mixed sensitivity control as outer-loop, to restrain coupling disturbance and strengthen the system's robust performance. The dynamic tracking performance and the robustness for the parameter disturbance of the roll controller were analyzed. The simulated results show that the roll control system functions better and robustly.According to requirements of the bank-to-turn （BTT） control for a small diameter bomb （SDB） , the robust design problem for the roll autopilot was studied by H∞ -mixed sensitivity control method. A roll channel dynamics model was established. Considering the couple between the yaw and roll channel as uncertain disturbance, the roll autopilot was designed using dual-loop scheme which takes a linear quadratic regulator （LQR） as inner-loop, to ensure the control effect of the certain part in model, and an H∞-mixed sensitivity control as outer-loop, to restrain coupling disturbance and strengthen the system＇s robust performance. The dynamic tracking performance and the robustness for the parameter disturbance of the roll controller were analyzed. The simulated results show that the roll control system functions better and robustly.

关 键 词：control and navigation technology of aerocraft AUTOPILOT SDB H∞-mixed sensitivity dual-loop control 

分 类 号：TJ765.2[兵器科学与技术—武器系统与运用工程] TJ761.1