A modern tactical aircraft is faced with ever increasing threats and, to be effective against them, it needs to know what and where they are as early as possible during any encounter. It must do this day and night, in all weather, in hostile countermeasure environments and in the presence of clutter. Tactical aircraft receive large amounts of information from multiple sensors and data communications systems. To allow the crew to manage the aircraft and ensure its mission is fulfilled, the information must be aligned, correlated, consolidated and presented to them in a meaningful form. The paper introduces a model of tactical situation awareness processing which comprises sensors, data fusion, situation assessment and sensor management. The purpose of each component of the model and the relationships between them are discussed. The requirements placed on sensor data fusion by air to air sensing are discussed, and so is the way in which they are dominated by particular features of the tactical aircraft platform and its mission. The influence of these factors on the design of air to air situation awareness systems is considered. A computer test harness, developed by BAe Defence, Military Aircraft Division, is described, along with built-in tools which calculate test statistics. The harness was developed as part of a program of studies carried out by the Mission Systems group of the Design Quality and R&D team within the Systems Engineering Department at BAe's Warton unit in Lancashire, U.K. Examples of the results which were obtained when an air to air sensor data fusion model was evaluated are reproduced. These take the form of graphs and diagrams representing test statistics and offer a means by which different solutions to various data fusion problems may be compared under identical conditions.


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    Title :

    Sensor Data Fusion for Air to Air Situation Awareness Beyond Visual Range


    Contributors:

    Publication date :

    1994


    Size :

    8 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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