%0 Journal Article %T Trajectory Following Method on Output Regulation of Affine Nonlinear Control Systems with Relative Degree not Well Defined %A Janson Naiborhu %J ITB Journal of Science %D 2011 %I %X The problem of output regulation of affine nonlinear systems with the relative degree not well defined by modified steepest descent control is studied. The modified steepest descent control is a dynamic feedback control which is generated by the trajectory following method. By assuming the system is minimum phase, output of the system can be regulated globally asymptotically. %K modified steepest descent control %K trajectory following method %K minimum phase. %U http://journal.itb.ac.id/download.php?file=A10104.pdf&id=703&up=7