Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2013.1011.1017JieJia YuYao KemaoMa 52013125In the terminal proximity stage of autonomous rendezvous and
docking, two kinds of continuous optimal guidance algorithms are developed to
overcome the influence of the following terms, the uncertainty of the system
model, the noise of the relative information measurements and thrust misalignment
on relative guidance accuracy. First of all, a glide slope scheme widely used
is introduced to plan the ideal terminal proximity trajectory. By using this
assumption the ideal relative position and velocity can be determined beforehand.
And then, the tracking error equations for V-bar approach are derived. So, the
guidance problem is transformed to synthesize a controller to eliminate the
tracking error to zero. Modern control methods are applied to design the H_{2}/H_{∞}
controller. The LMI (linear matrix inequalities) technology is adopted here
to get the final solution for optimal controllers. Simulation based on the solution
obtained though MATLAB LMI toolbox is performed on a scenario of the rendezvous
and docking final proximity stage. The simulation results verify the validity
and superiority of the H_{∞} design method for the terminal proximity
of autonomous rendezvous and docking.]]>Mokuno, M., I. Kawano and T. Suzuki,2004Ohkami, Y. and I. Kawano,2003Philip, N.K. and M.R. Ananthasayanam,2003Ortega, G. and J.M. Giron-Sierra,1998Ma, Z., O. Ma and B.N. Shashikanth,2006Gao, H., X. Yang and P. Shi,2009Zhan, L., X. Yang and H. Gao,2012Qi, Y. and Y. Jia,2012Ma, L., X. Meng, Z. Liu and L. Du,2012Lian, Y., Y. Meng, G. Tang and L. Liu,2012Yang, X., J. Yu and H. Gao,2012Hablani, H.B., M. Tapper and D.B. David,2001Gahinet, P., A.J. Laub and M. Chilali,1995