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.
This paper offer a method to obtain UAV's flight parameters at auto-landing period based on the algorithm of camera calibration. According to the geometry features of landing ground to obtain vanishing point, the focal length function is established from the u and v axis scale of the image plane, then the attitude and position of UAV are achieved from the calibration result. Simulation indicates that...
The fieldbus technology is applied to the auto-control system of the coal unload workshop. The setting-up of the model, the design and the realization of the fieldbus control system are discussed. High-low voltage control systerm structure is analysed. Hardware of fieldbus and communication cards is designed. And the key points of the realization of the system are designated. The prospect of the fieldbus...
Optimal switched law, which is for the linear impulsive switched system, is discussed in this paper. First, we show that if the constraint condition of the matrix pencil is satisfied, we could obtain the asymptotically stable range of the linear impulsive switched system. For a stable linear impulsive switched system, different switched laws determine different convergence process. Then the method...
Composable simulation is one of the most important trends in simulation community, in which semantic composibility is the essence. Currently, there are not any applicable approaches for semantic specification of simulation components. In this paper, ontology theory and feature models are introduced. The semantic models of simulation components consist of conception space, definition space and contest...
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.