This paper presents a longitudinal quasi-linear model for the ADMIRE model. The ADMIRE model is a nonlinear model of aircraft flying in the condition of high angle of attack. So it can-t be considered to be a linear system approximately. In this paper, for getting the longitudinal quasi-linear model of the ADMIRE, a state transformation based on differentiable functions of the nonscheduling states and control inputs is performed, with the goal of removing any nonlinear terms not dependent on the scheduling parameter. Since it needn-t linear approximation and can obtain the exact transformations of the nonlinear states, the above-mentioned approach is thought to be appropriate to establish the mathematical model of ADMIRE. To verify this conclusion, simulation experiments are done. And the result shows that this quasi-linear model is accurate enough.<\/p>\r\n","references":"[1] Forssell. L. S, Hovmark. G, Hyden. A, and Johansson. F, \"The Aero-Data\r\nModel in a Research Environment \u00b4\u255d\u00eaADMIRE\u00b4\u255d\u00eb for Flight Control\r\nRobustness Evaluation,\" Technical Report. GARTUER\/TP-119-7.2001.\r\n[2] Shamma. J. S, and Cloutier. J. R, \"Gain-scheduled missile autopilot\r\ndesign using linear parameter varying transformations,\" Journal of\r\nGuidance, Control and Dynamics .J., 1993, 16(2): 256-263..\r\n[3] Xingfang. Qian, Ruixiong. Lin, Yanan. Zhao, Missile Flight Dynamics.\r\nBeijing, CA: Beijing Institute of Technology Press, 2000, pp.36-53\r\n[4] Andres. Marcos, and Gary J. Balas, \"Development of\r\nLinear-Parameter-Varying Models for Aircraft,\" Journal of Guidance,\r\nControl, and Dynamics. J., 2004, 27(2):218-228.\r\n[5] Shin, J. Y., \"Worst-Case Analysis and Linear Parameter-Varying\r\nGain-Scheduled Control of Aerospace System,\" Ph.D. Dissertation, Dept.\r\nof Aerospace and Engineering Mechanics, Univ. of Minnesota,\r\nMinneapolis, Oct. 2000.\r\n[6] Papageorgiou, G., and Glover, K., \"Design, Analysis and Flight Testing\r\nof a Robust Gain Scheduling Controller for the VAAV Harrier,\" DERA,\r\nTech. Rep. TR-CUED\/F-INFENG\/TR.368, Univ. of Cambridge, U.K.,\r\nFeb. 2000.\r\n[7] Tan, W., \"Applications of Linear Parameter-Varying Control Theory,\"\r\nMaster-s Thesis, Dept. of Mechanical Engineering, Univ. of California at\r\nBerkeley, May 1997.\r\n[8] Papageorgiou, G., \"Robust Control System Design H\u221e Loop Shaping\r\nand Aerospace Application,\" Ph.D. Dissertation, Dept. of Engineering,\r\nUniv. of Cambridge, Cambridge, England, U.K., July. 1998.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 44, 2010"}