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.
Trajectory tracking control of space robots in task space is of great importance to space missions, which require on-orbit manipulations. This paper focuses on position and attitude tracking control of a free-floating space robot in task space. Since neither the nonlinear terms and parametric uncertainties of the dynamic model, nor the external disturbances are known, an adaptive radial basis function...
In order to reveal dynamic coupling effect in a space robot's operation, the paper raises a method of using recursive formulation to establish the system dynamic model and designing operational procedure in a parameterized way. In the paper, a topological representation of a space robot operating system is established containing dynamic constraints. The weighted factors method is used to get a simplified...
The paper presents a nonlinear predictive controller with a disturbance observer, which is based on the dynamically extended attitude system, to cope with the problem of the attitude control of an unmanned helicopter on the test bench. The implied integral action of the disturbance observer can eliminate the system steady state error effectively. The effect of the zero points of the closed-loop transfer...
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.