engleski

Fuzzy Track-keeping Autopilot for Ships

A fuzzy autopilot for ship path control is proposed. Nonlinear model of a ship and a steering machine is used. The autopilot uses heading signal and yaw rate signal to produce a command rudder angle. The autopilot does not use lateral offset from the nominal track. By including an additional control-loop in the control system with position feedback, a fuzzy truck-keeping autopilot is obtained. Input variable fuzzyfication, fuzzy associative memory rules and output set defuzzyfication are described.

fuzzy logic autopilot; tracking; nonlinear ship control

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