State constraints in nonlinear systems are commonly pursued by resorting to barrier functions,which enforce constraints over the entire duration of system operation.We propose a universal intermittent state-constraine...State constraints in nonlinear systems are commonly pursued by resorting to barrier functions,which enforce constraints over the entire duration of system operation.We propose a universal intermittent state-constrained solution,which not only offers flexibility by activating constraints just during specific time periods of interest to the user,but also successfully accommodates different types of constraint boundaries.The innovative shifting functions are proposed to facilitate seamless transitions between constrained and unconstrained operational phases,resulting in more user-friendly design and implementation.By blending an improved shifting transformation into intermittent constraint design,we construct a universal barrier function upon the constrained states,with which our control strategy removes the limitations on constraint functions and completely obviates the feasibility conditions.Furthermore,a modified fuzzy approximator driven by the prediction error rather than the tracking error achieves decoupling of the control and estimation loops,which not only ensures the estimation performance,but also facilitates proof of stability.Finally,the effectiveness of the proposed scheme is assessed by numerical simulation.展开更多
随着第六代移动通信网络(6th generation mobile network,6G)的不断发展,通感算一体化技术已成为提升未来网络性能和智能化水平的关键技术之一。通感算一体化网络将通信、感知和计算能力深度融合,实现了对信息的全方位获取、传输和处理...随着第六代移动通信网络(6th generation mobile network,6G)的不断发展,通感算一体化技术已成为提升未来网络性能和智能化水平的关键技术之一。通感算一体化网络将通信、感知和计算能力深度融合,实现了对信息的全方位获取、传输和处理,为各类应用场景提供强有力的技术支撑。全面综述了通感算在6G中的应用及其关键技术,探讨了通感算在低空经济、移动通信系统、智能交通系统、工业互联网与智能制造、智慧城市与环境监测等领域中的广泛应用,并深入讨论了通感算融合技术的核心技术,包括通信感知融合(integrated sensing and communication,ISC)技术、通信计算融合(integrated communication and computation,ICC)技术、感知计算融合(integrated sensing and computation,ISAC)技术、通感算融合(integrated sensing,communication,and computation,ISCC)技术及通感算智融合(integrated sensing,communication,computation and intelligence,ISCCI)技术的最新进展。展望了通感算一体化网络在6G时代的发展趋势,重点分析了未来面临的挑战与研究方向。展开更多
基金supported by the Fundamental Research Funds for the Central Universities(N2404005)the National Key Research and Development Program of China(2018YFA0702200)+2 种基金Liaoning Revitalization Talents Program(XLYC1801005)the National Natural Science Foundation of China(U23B20118)the Nature Science Foundation of Liaoning Province of China(2022JH25/10100008)。
文摘State constraints in nonlinear systems are commonly pursued by resorting to barrier functions,which enforce constraints over the entire duration of system operation.We propose a universal intermittent state-constrained solution,which not only offers flexibility by activating constraints just during specific time periods of interest to the user,but also successfully accommodates different types of constraint boundaries.The innovative shifting functions are proposed to facilitate seamless transitions between constrained and unconstrained operational phases,resulting in more user-friendly design and implementation.By blending an improved shifting transformation into intermittent constraint design,we construct a universal barrier function upon the constrained states,with which our control strategy removes the limitations on constraint functions and completely obviates the feasibility conditions.Furthermore,a modified fuzzy approximator driven by the prediction error rather than the tracking error achieves decoupling of the control and estimation loops,which not only ensures the estimation performance,but also facilitates proof of stability.Finally,the effectiveness of the proposed scheme is assessed by numerical simulation.
文摘随着第六代移动通信网络(6th generation mobile network,6G)的不断发展,通感算一体化技术已成为提升未来网络性能和智能化水平的关键技术之一。通感算一体化网络将通信、感知和计算能力深度融合,实现了对信息的全方位获取、传输和处理,为各类应用场景提供强有力的技术支撑。全面综述了通感算在6G中的应用及其关键技术,探讨了通感算在低空经济、移动通信系统、智能交通系统、工业互联网与智能制造、智慧城市与环境监测等领域中的广泛应用,并深入讨论了通感算融合技术的核心技术,包括通信感知融合(integrated sensing and communication,ISC)技术、通信计算融合(integrated communication and computation,ICC)技术、感知计算融合(integrated sensing and computation,ISAC)技术、通感算融合(integrated sensing,communication,and computation,ISCC)技术及通感算智融合(integrated sensing,communication,computation and intelligence,ISCCI)技术的最新进展。展望了通感算一体化网络在6G时代的发展趋势,重点分析了未来面临的挑战与研究方向。
