This paper describes the current state of the work done at The University of Wales' College Newport under the 'improve the performance of remotely operated vehicles' programmme (IMPROVES). The work incorpo...
详细信息
This paper describes the current state of the work done at The University of Wales' College Newport under the 'improve the performance of remotely operated vehicles' programmme (IMPROVES). The work incorporates advances in two interrelated parts of the project: it presents a technique to extract velocity from a low-cost MEMS inertial measurement unit for system identification and development of a combined control allocation and fault detection technique, The paper presents theoretical developments and results obtained on experimental trials.
In this paper a non-linear fuzzy autopilot for ship track-keeping is presented. The proposed autopilot has four inputs (actual and desired heading, rate of change of heading and offset from the desired path) and one o...
详细信息
In this paper a non-linear fuzzy autopilot for ship track-keeping is presented. The proposed autopilot has four inputs (actual and desired heading, rate of change of heading and offset from the desired path) and one output (command rudder angle). The track-keeping problem is decomposed into two subtasks: (i) followthe desired heading, and (ii) bring the ship onto the desired path and keep tracking. Internally, the autopilot consists of two autopilots that fulfil these tasks simultaneously. The proposed control scheme has been verified using a non-linear model of a Mariner-class vessel and steering mechanism under the influence of wave and current disturbances. Results presented show how such a control strategy enables improved tracking performance.
暂无评论