Adaptive control of an aircraft with uncertain nonminimum-phase dynamics

Retrospective Cost Adaptive PID Control of Quadcopter/Fixed-Wing Mode Transition in a VTOL Aircraft

“…To construct G f , Markov parameters are used in, 10,11,13 and NMP zeros are used in. 12,14 More recently, 9 RCAC was reinterpreted as a residual-minimization technique involving the transfer function between a virtual control input and the performance variable. In particular, it was shown in 9 that the filter G f used to define the retrospective performance variable provides a target model for an intercalated transfer function.…”

Retrospective Cost Adaptive Control of the Generic Transport Model under Abrupt Faults

“…To construct G f , Markov parameters are used in, 16,17,19 and NMP zeros are used in. 18,20 More recently, 15 RCAC was reinterpreted as a residual-minimization technique involving the transfer function between a virtual control input and the performance variable. In particular, it was shown in 15 that the filter G f used to define the retrospective performance variable provides a target model for an intercalated transfer function.…”

Retrospective Cost Adaptive Control of Generic Transport Model Under Uncertainty and Failure

“…RCAC uses a filter G f to define the retrospective cost by filtering the difference between the actual past control inputs and the reoptimized control inputs. To construct G f , Markov parameters are used in [15,16,18] and NMP zeros are used in [17,19].…”

“…RCAC uses a filter G f to define the retrospective cost by filtering the difference between the actual past control inputs and the reoptimized control inputs. To construct G f , Markov parameters are used in [15,16,18] and NMP zeros are used in [17,19].In the present paper, we interface RCAC with the NASA generic transport model (GTM) simulation model [20][21][22][23]. This aircraft model includes an aerodynamic database, trim function, and interface to facilitate feedback control from realistic sensors to thrust and control surfaces.…”