| Summary: | 碩士 === 國立臺灣海洋大學 === 通訊與導航工程系 === 96 === CNS/ATM is a new concept which is about new communication, navigation, and surveillance systems and air traffic management based on satellite. In new CNS/ATM concept, the ADS-B system replaces traditional radar in the surveillance. The main idea of ADS-B is to get more accurate flight information by GNSS and to broadcast via the completed communication systems to the surrounding users in order to provide secure the flights.
The purpose of this paper is to create a simulation situation of air traffic management system, which can carry out conflict resolution automatically when the aircrafts are having a conflict by ADS-B system in the flight route. This is a basis of free flight concept in the future. The major subject is to simulate two aircrafts how to analyze the conflict resolution by ADS-B, and utilizes the GUI interface of Matlab to display dynamically. This could be very clearly to observe the conflict resolution for two aircrafts.
It is using the six degree of freedom equation of motion to create the dynamical trajectory of aircraft in this simulation. Both of the aircraft are using GPS which to get the position, velocity, heading and so on, then package the messages by ADS-B and broadcast out. The conflict resolution will be automatically carry out when two aircrafts occurs the protected zones of the aircraft overlap. In the future we can install SBAS and GBAS, therefore the accuracy, continuity, integrity and availability can be increased, in the other hand also increased the safety of aircraft.
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