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We develop a PID based fuzzy logic pitch attitude hold system for a typical fighter jet under a variety of performance conditions that include approach, subsonic cruise and supersonic cruise. In this approach, the gains found in a classic PID controller are replaced with fuzzy systems, still contributing the overall effects of a proportional, integral, and derivative controller. The response is compared...
This paper proposes a possibilistic database model that enables dealing with incomplete possibility distributions. The situation considered is that where the data provider does not have a complete knowledge of the attribute domains involved and is only able to specify more or less possible and completely impossible candidates for some attribute values. It is shown that the framework we propose constitutes...
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