partially supported by National Natural Science Foundation of China(61290322,61273222,61322303,61473248,61403335);Hebei Province Applied Basis Research Project(15967629D);Top Talents Project of Hebei Province and Yanshan University Project(13LGA020)
Robust controller design problem is investigated for a class of fractional order nonlinear systems with time varying delays. Firstly, a reduced-order observer is designed. Then, an output feedback controller is design...