@article{(Open Science Index):https://publications.waset.org/pdf/1748,
	  title     = {Nonlinear Observer Design and Sliding Mode Control of Four Rotors Helicopter},
	  author    = {H. Bouadi and  M. Tadjine},
	  country	= {},
	  institution	= {},
	  abstract     = {In this paper; we are interested in dynamic modelling of quadrotor while taking into account the high-order nonholonomic constraints as well as the various physical phenomena, which can influence the dynamics of a flying structure. These permit us to introduce a new state-space representation and new control scheme. We present after the development and the synthesis of a stabilizing control laws design based on sliding mode in order to perform best tracking results. It ensures locally asymptotic stability and desired tracking trajectories. Nonlinear observer is then synthesized in order to estimate the unmeasured states and the effects of the external disturbances such as wind and noise. Finally simulation results are also provided in order to illustrate the performances of the proposed controllers.
},
	    journal   = {International Journal of Aerospace and Mechanical Engineering},
	  volume    = {1},
	  number    = {7},
	  year      = {2007},
	  pages     = {329 - 334},
	  ee        = {https://publications.waset.org/pdf/1748},
	  url   	= {https://publications.waset.org/vol/7},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 7, 2007},
	}