The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Spectrum measurement is the basic method of the quantum optics theoretical and experimental study, also the accurate measurement and the analysis of spectral data is the basis of the research on the interaction between the matter and the light. This paper constructs a comprehensive evaluation index Q and it is used to select the wavelet filtering method for the denoising in processing of the spectral...
In this paper, impulsive containment control problem for networked harmonic oscillators is investigated with multiple leaders under directed network topology. Based on the graphic theory, matrix analysis theory and impulsive differential equation stable theory, a distributed impulsive containment control law is proposed, and the sufficient conditions which guarantee the convergence of the proposed...
This paper provides a simple approach for group consensus of networked gyroscopes systems from the analytical dynamics point of view. By using the Udwadia-Kalaba fundamental equation theory, a novel robust group control law is presented and a sufficient condition which ensure achieving group consensus of non-identical gyroscopes networks is given in this paper. Finally, numerical simulations conducted...
Leaf area index (LAI), as an important characterization parameter, reflects the canopy structural characteristics of crops. It is commonly used to estimate foliage cover, as well as forecasting crop growth and yield [1,2,3]. Because LAI is functionally linked to the canopy spectral reflectance, its retrieval from remote sensing data has prompted many investigations and studies in recent years. The...
In this paper, based on variable universe fuzzy tracking control (VUFC), we present a novel adaptive algorithm for a class of pure-feedback systems with unknown dead-zone inputs. With some new states variables and coordinate transforms, the system is converted into the normal system and observers need to be designed. So, we can consider VUFC scheme rather than backstepping scheme. VUFC are mainly...
This paper is concerned with the sampled-data group synchronization issue of coupled harmonic oscillators subject to controller failure. A group synchronization algorithm in directed networks of multiple groups consisting of coupled harmonic oscillators is proposed based on the sampled-data velocity measurement with controller failures. Some simple and general criteria for such algorithm are proposed...
In this paper, we investigate the group consensus problems of networked Euler-Lagrange systems with parametric uncertainties under directed acyclic interaction topology. We propose an adaptive group consensus protocol for such networks with two acyclic partition. By thoroughly exploiting the specific structure of acyclic interaction topology, we provide a convergence analysis procedure for the proposed...
In this paper we propose a distributed protocol for synchronization of directed coupled harmonic oscillators with local instantaneous interaction. We provide convergence analysis for such protocol over fixed and switching directed network topologies, respectively. It is shown that directed coupled harmonic oscillators can synchronize when coupling strengthen is less than a given threshold value and...
In this brief, a distributed impulsive algorithm for second-order multi-agent systems with a group reference velocity and input time delays is proposed. A distinctive feature of the algorithm is to address second-order consensus problems with local instantaneous interaction, where each agent can only exchange the information with its neighbors at a series of discrete-time instants and follow a desired...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.