This paper presents a tutorial-style review on the recent results about the disturbance
observer (DOB) in view of robust stabilization and recovery of the nominal performance. The …

This paper proposes a systematic analysis and synthesis method for the optimal design of
filters for L 1 adaptive output feedback controllers. In the L 1 adaptive feedback structure, the …

In control of aerospace systems with large operating envelopes, it is often necessary to
adjust the desired dynamics according to operating conditions. This paper presents a robust …

Temperature control in a cryogenic wind tunnel is the key to realizing finely controlled
Reynolds number close to true flight. This study deploys the L1 adaptive control …

This paper considers the problem of optimal trade-off between robustness, in terms of time-
delay margin, and performance of the L_1 adaptive controller. Although the architectures of …

This paper proposes an efficient approach for tuning L1 feedback filter of adaptive controller
for multi-input multi-output (MIMO) systems. The feedback filter provides performance that …

Background: Temperature is one of the main variables need to be regulated in cryogenic
wind tunnel to realize the true flight Reynolds number. A new control methodology based on …

We present an application of L1 adaptive output feedback control design to wind turbine
collective pitch control and load mitigation. Our main objective is the design of an L1 output …

This paper presents an£ 1 adaptive output feed back controller for a class of uncertain
nonlinear systems in the presence of time and output dependent unknown nonlinearities. As …

L 1 L_1 adaptive controller is known for ensuring fast adaption with the optimal transient
performance for input and output signals using a low‐pass filter with adjustable gain in the …