has made a significant progress in the last two decades, but the employed strategies have
been many and dispersed. Using one framework, we review model-based techniques, such
as linear-quadratic regulators, and model-free adaptive methods, such as least-mean
square filters. The former are supported by an elegant and powerful theoretical basis,
whereas the latter may provide a more practical approach in the presence of complex …
Research on active control for the delay of laminar–turbulent transition in boundary layers
has made a significant progress in the last two decades, but the employed strategies have
been many and dispersed. Using one framework, we review model-based techniques, such
as linear-quadratic regulators, and model-free adaptive methods, such as least-mean
square filters. The former are supported by an elegant and powerful theoretical basis,
whereas the latter may provide a more practical approach in the presence of complex …