4D Trajectory Modeling and Pub/Sub Mechanism Based on Interoperability Mode

With the rapid development of air traffic management, a number of new technologies will replace today control method. In the future, aircrafts can keep appropriate interval according to control intention. And controllers will command the whole situation in real-time. On the basis of the 4D trajectory design and plan of American in air traffic management, we establish 4D trajectory model by UML and XML Schema. Then the Pub/Sub mechanism is modeled and analyzed. Through analyzing the QoS data synchronization, we can regulate data exchange which under 4D trajectory interoperability effectively.