Flight control design for small-scale helicopter using disturbance observer based backstepping Hao Lu Cunjia Liu Lei Guo Wen-Hua Chen 2134/18273 https://repository.lboro.ac.uk/articles/journal_contribution/Flight_control_design_for_small-scale_helicopter_using_disturbance_observer_based_backstepping/9227813 Flight control design for small-scale helicopter using disturbance observer based backstepping 2015-07-15 10:46:16 untagged Aerospace Engineering Mechanical Engineering Engineering not elsewhere classified