A new kind of generalized reduced-order synchronization of different chaotic systems is proposed in this paper. It is shown that dynamical evolution of third-order oscillator can be synchronized with the canonical pro...A new kind of generalized reduced-order synchronization of different chaotic systems is proposed in this paper. It is shown that dynamical evolution of third-order oscillator can be synchronized with the canonical projection of a fourth-order chaotic system generated through nonsingular states transformation from a cell neural net chaotic system. In this sense, it is said that generalized synchronization is achieved in reduced-order. The synchronization discussed here expands the scope of reduced-order synchronization studied in relevant literatures. In this way, we can achieve generalized reduced-order synchronization between many famous chaotic systems such as the second-order Drifting system and the third-order Lorenz system by designing a fast slide mode controller. Simulation results are provided to verify the operation of the designed synchronization.展开更多
A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution,in order to meet time-varying business req...A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution,in order to meet time-varying business requirements.Beam hopping technology provides an efficient solution to achieve the efficient use of frequency resources and power resources.At the same time,the use of beam hopping makes the beam hopping of satellite payload need to match the business signals of ground signal stations,bringing about the need for synchronization of beam hopping between satellite and ground.On the basis of analyzing the basic principles and key technologies of hopping beam,the paper analyzes the synchronization problem of satellite to ground hopping beam,proposes a signaling-assisted fast synchronization method of hopping beam for satellite to ground synchronization,and conducts simulation analysis of synchronization performance.展开更多
基金Project supported by the National Natural Science Foundation of China （Grant No 60374037） and the National High Technology Development Program of China （Grant No 2004BA204B08-02）.
文摘A new kind of generalized reduced-order synchronization of different chaotic systems is proposed in this paper. It is shown that dynamical evolution of third-order oscillator can be synchronized with the canonical projection of a fourth-order chaotic system generated through nonsingular states transformation from a cell neural net chaotic system. In this sense, it is said that generalized synchronization is achieved in reduced-order. The synchronization discussed here expands the scope of reduced-order synchronization studied in relevant literatures. In this way, we can achieve generalized reduced-order synchronization between many famous chaotic systems such as the second-order Drifting system and the third-order Lorenz system by designing a fast slide mode controller. Simulation results are provided to verify the operation of the designed synchronization.
基金supported by Key Research and Development Program of Shaanxi(Program No.2022ZDLGY05-08)Application Innovation Program of CASC(No.6230107001)+2 种基金Research project on civil aerospace technology(No.D040304)Research project of CAST(No.Y23-WYHXJS-07)Research Foundation of the Key Laboratory of Spaceborne Information Intelligent Interpretation(No.2022-ZZKY-JJ-20-01).
文摘A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution,in order to meet time-varying business requirements.Beam hopping technology provides an efficient solution to achieve the efficient use of frequency resources and power resources.At the same time,the use of beam hopping makes the beam hopping of satellite payload need to match the business signals of ground signal stations,bringing about the need for synchronization of beam hopping between satellite and ground.On the basis of analyzing the basic principles and key technologies of hopping beam,the paper analyzes the synchronization problem of satellite to ground hopping beam,proposes a signaling-assisted fast synchronization method of hopping beam for satellite to ground synchronization,and conducts simulation analysis of synchronization performance.
