Abstract
By a News Reporter-Staff News Editor at Robotics & Machine Learning DailyNews Daily News-A new study on Robotics is now availab le. According to news reporting originating fromQingdao, People's Republic of C hina, by NewsRx correspondents, research stated, "This article developsa predef ined-time sliding mode control approach for systems with external disturbances a nd uncertaintiesthrough a nonlinear disturbance observer (DO). For addressing p redefined-time stabilization problem ofrobotic manipulator system, a predefined -time sliding mode surface is proposed, ensuring system statesconverge to origi n within a predefined-time once sliding mode surface is attained."Financial support for this research came from National Natural Science Foundatio n of China (NSFC).Our news editors obtained a quote from the research from the Qingdao University of Technology,"Compared to conventional fixed-time and finite-time control stra tegies, a distinctive advantage of thisscheme is that system settling time can be explicitly chosen in advance and independent of system states.To achieve pre defined-time performance, a disturbance observer is introduced to generate the d isturbanceestimate, which can be incorporated into controller to counteract dis turbance. To address the systemsuncertainty, an adaptive law is employed to est imate the unknown upper boundary of system uncertainties."
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