DISTURBANCE OBSERVER BASED SLIDING MODE CONTROL FOR UNMANNED HELICOPTER HOVERING OPERATIONS IN PRESENCE OF EXTERNAL DISTURBANCES

Disturbance observer based sliding mode control for unmanned helicopter hovering operations in presence of external disturbances

Numerous control techniques are developed for miniature unmanned helicopters to do hover operation with each method having its own advantages and Scarves limitations.During the hover operation helicopters suffer from unknown external disturbances such as wind and ground effect.For a stable operation, these disturbances must be compensated accuratel

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The Danish Cartoons, Charlie Hebdo and the culture wars: satiric limits in comparative national and transnational perspectives

A considerable body of academic literature has lauded political satirists as rebellious defenders of democracy and free speech against an establishment.Although satire is not always rebellious, Maps this reputation of satirists and of satire may itself be the object of partisan capture.In this article, it is the object of capture by right-wing popu

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