In this paper, mathematical modeling and sliding mode control of a roll-pitch seeker is provided. First, the dynamic model of the roll and pitch frames is obtained by the Newton-Euler equations of motion. The effect of mass asymmetry and the asymmetry of the moment of inertia matrix on the dynamics of the seeker is also considered. The dynamics of the roll-pitch seeker are hardly nonlinear. Also, the presence of unmodified uncertainties and perturbations causes uncertainty in the model. To control the nonlinear dynamics of the seeker and to deal with the uncertainties, a two-input two-output integrated sliding mode controller is designed. The motor transfer functions of the inner and outer frames and the input voltage and output current saturation limits are also considered in the simulation. Numerical simulation results show that the stabilization loop has good performance in both roll and pitch channels. Also, by examining the performance of the designed controller in the presence of mass uncertainty of the frames, it is shown that the controller has good robustness.
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Ghasemi,M. , Nobahari,H. and Mohammadkarimi,H. (2023). Modeling and Sliding Mode Control of a Roll-Pitch Seeker. Journal of Aeronautical Engineering, 25(1), 76-90. doi: 10.22034/joae.2023.171300
MLA
Ghasemi,M. , , Nobahari,H. , and Mohammadkarimi,H. . "Modeling and Sliding Mode Control of a Roll-Pitch Seeker", Journal of Aeronautical Engineering, 25, 1, 2023, 76-90. doi: 10.22034/joae.2023.171300
HARVARD
Ghasemi M., Nobahari H., Mohammadkarimi H. (2023). 'Modeling and Sliding Mode Control of a Roll-Pitch Seeker', Journal of Aeronautical Engineering, 25(1), pp. 76-90. doi: 10.22034/joae.2023.171300
CHICAGO
M. Ghasemi, H. Nobahari and H. Mohammadkarimi, "Modeling and Sliding Mode Control of a Roll-Pitch Seeker," Journal of Aeronautical Engineering, 25 1 (2023): 76-90, doi: 10.22034/joae.2023.171300
VANCOUVER
Ghasemi M., Nobahari H., Mohammadkarimi H. Modeling and Sliding Mode Control of a Roll-Pitch Seeker. JoAE, 2023; 25(1): 76-90. doi: 10.22034/joae.2023.171300
