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Air Traffic Control

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Tony P. Ng – One of the best experts on this subject based on the ideXlab platform.

  • An active real-time database model for Air Traffic Control systems
    Lecture Notes in Computer Science, 1998
    Co-Authors: Ching-sang Peng, Tony P. Ng
    Abstract:

    The application of Air Traffic Control systems is one of the more complex real-time applications that require timely responses as well as logical and temporal data integrities. An Air Traffic Control system is highly safety-critical. In this paper, we propose a database model for the Air Traffic Control system using the active database scheme to coordinate the interactions among external update transactions, time-triggered transactions and operator transactions. We define the system components, including a time-based trigger manager and a concurrency Control manager with the implementation of semantic-based concurrency Control protocols. The concurrency Control utilizes the compatibility matrix technique with semantic-based operations that can be carefully designed to enhance the temporal correctness in terms of external consistency and data deadlines.

Ching-sang Peng – One of the best experts on this subject based on the ideXlab platform.

  • An active real-time database model for Air Traffic Control systems
    Lecture Notes in Computer Science, 1998
    Co-Authors: Ching-sang Peng, Tony P. Ng
    Abstract:

    The application of Air Traffic Control systems is one of the more complex real-time applications that require timely responses as well as logical and temporal data integrities. An Air Traffic Control system is highly safety-critical. In this paper, we propose a database model for the Air Traffic Control system using the active database scheme to coordinate the interactions among external update transactions, time-triggered transactions and operator transactions. We define the system components, including a time-based trigger manager and a concurrency Control manager with the implementation of semantic-based concurrency Control protocols. The concurrency Control utilizes the compatibility matrix technique with semantic-based operations that can be carefully designed to enhance the temporal correctness in terms of external consistency and data deadlines.

Katherine F Turnbull – One of the best experts on this subject based on the ideXlab platform.

Bai Song-hao – One of the best experts on this subject based on the ideXlab platform.

  • Performance evaluation of Air Traffic Control system based on analytic hierarchy process
    Journal of Computer Applications, 2008
    Co-Authors: Bai Song-hao
    Abstract:

    The performance of Air Traffic Control system was evaluated by using Analytic Hierarchy Process (AHP). Firstly, the factors that can affect the performance of Air Traffic Control system were analyzed and Air Traffic Control system’s performance guidelines and metrics suitable for the characteristics of China’s military and civil aviation were established. Then the relative weight of these guidelines could be obtained by computing the judgment matrix that was constructed by experts. At last, the relative weight to the system performance could be got by recursively using probability multiplication methods. Finally the value of Air Traffic Control system’s performance equaled the liner weighted value of product between weights and their corresponding indicators of membership. According to the statistics conducted by the simulation, it is basically the same as the conclusions of experts, which shows it is reasonable to use AHP in the performance evaluation of Air Traffic Control system.

Pan Wei-jun – One of the best experts on this subject based on the ideXlab platform.