Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2012.141.147ShiehMing-Yuan ChiouJuing-Shian 12012111This study has presented two types of observer and observer-based controller for stabilization of singularly perturbed discrete bilinear systems. The first one is an ε-dependent observer-based controller that stabilizes the closed-loop system for all εε (0, ε*p) where, ε*p is the prespecified upper bound of the singular perturbation parameter. The other one is an ε-independent observer-based controller, which is able to stabilize the closed-loop system for all εε (0, εmax) where, εmax is the exact upper ε-bound. The designs of observer and observer-based controller are suitable for the quasi-separation property. An example is exploited to illustrate the proposed schemes.]]>Asseu, O., M. Koffi, Z. Yeo, X. Lin-Shi, M.A. Kouacou and T.J. Zoueu,200815969Asseu, O., T.R. Ori, K.E. Ali, Z. Yeo, S. Ouattara and X. Lin-Shi,20114202210Chiou, J.S., F.C. Kung and T.H.S. Li,20004511871191Fuller, A.T.,1968237198Furnkawa, T. and E. Shimemura,198337553565Gholizade-Narm, H., A. Azemi, M. Khademi and M. Karimi-Ghartemani,2008831753182Hassanzadeh, I. and M.A. Fallah,2008829012906Hsiao, C.H. and W.J. Wang,200047246250Hsiao, F.H., J.D. Hwang and S.T. Pan,200334227236Jury, E.I. and S. Gutman,197520533535Li, T.H.S. and J.S. Chiou,20024912261230Li, X.S. and H.J. Fang,20098165172Li, X., X. Bei WU and J. Gao,201110394401Luo, H., Y. Lv, X. Deng and H. Zhang,20098577582Mohler, R.R.,1991Vol. II,Englewood CliffsEnglewood CliffsWang, S.J., N.S. Pai and H.T. Yau,20098743749Xin, D., Z. Jin, G. Tao and L. Yang,2009811501159Zhang, Y. and J. Li,20109968973Hsiao, M.Y., C.H. Liu and S.H. Tsai,2010915001503