Tiwari, SN and Dwivedi, PN and Bhattacharya, A and Padhi, R (2016) L-1 Adaptive Dynamic Inversion Missile Autopilot with PI Structure and Adaptive Sampling. In: 2nd Indian Control Conference (ICC), JAN 04-06, 2016, Indian Inst Technol, Hyderabad, INDIA, pp. 54-59.
Ind_Con_Con_54_2016.pdf - Published Version
Restricted to Registered users only
Download (613Kb) | Request a copy
An L-1 adaptive controller with piecewise continuous (PC) adaptation law augmenting a nonlinear dynamic inversion (NDI) autopilot has been applied to a highly agile, tail-controlled missile. Here proportional integral (PI) structure has been used in inner loop for better tracking and robustness. Adaptive sampling has also been introduced for less computational load. Firstly a two time scale separated NDI autopilot is designed to control the pitch and yaw accelerations in the body-fixed frame while maintaining a desired roll angle. The baseline NDI autopilot is augmented with proposed L-1 Adaptive autopilot using PI structure and adaptive sampling to overcome the potential performance degradation due to modeling uncertainties. The advantages of proposed autopilot are demonstrated via simulations of a high-fidelity six-DOF missile model, in which worst case uncertainties are considered.
|Item Type:||Conference Proceedings|
|Additional Information:||Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA|
|Department/Centre:||Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)|
|Date Deposited:||22 Oct 2016 09:31|
|Last Modified:||22 Oct 2016 09:31|
Actions (login required)