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.
In this paper, system framework for UAV formation collision avoidance is proposed. Key modules of the framework are identified including collaborative sensing, threat assessment, formation reorganization, path planning and maneuver control. Their corresponding mathematical models are also established for performance optimization. The formation collision avoidance is finally formulated as a combined...
The Local Minima (LM) is the main problem of well-known artificial potential field (APF) method in the scope of obstacle avoidance. In this paper, we prove the existence of the local minima, which causes the unavoidable collision. Furthermore the concept of relative angle is added in repulsion calculation which makes repulsion change with angle among destination, the robot and obstacles. In addition,...
Sense and Avoid (SAA) has been identified as one of the crucial technologies for integrating UAV into civil airspace, and vision based SAA is regarded as a promising solution. In this paper we described our vision based SAA system consisted of onboard vision detection system and Groud Control Station (GCS) to fulfill the intruder detection and avoid maneuver control tasks. To realize the small intruder...
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.