碩士 / 中原大學 / 機械工程研究所 / 94 / This study is intended to build a scale model of a ship-carried satellite antenna and to design fuzzy control and fuzzy sliding mode control schemes to track the aiming angle of the antenna. The scale model of the antenna is designed with two angular degrees of freedom, azimuth and elevation. To accomplish the closed-loop control, two encorders are installed to rotational axes of azimuth and elevation to provide instant feedback signals for the current aiming angle of the antenna. With the scale model designed and fabricated ready, control schemes are next forged. For Fuzzy control design, membership functions are first determined, and followed by if-then rules and defuzzification. For fuzzy sliding mode control design, sliding surface is first determined, and then the standard procedure of fussy control design is followed to synthesize the controller. The responses of the system are expected to first converge to the sliding surface and then to desired states. Numerical simulations are conducted for validating effectiveness of fuzzy controllers designed with various memberships and sliding surfaces. It shows that the designed controllers are able to perform effective tracking for the ship-carried antenna.
| Identifer | oai:union.ndltd.org:TW/094CYCU5489003 |
| Date | January 2006 |
| Creators | Shing-Far Hung, 黃新發 |
| Contributors | Paul C.-P. Chao, 趙昌博 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | en_US |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 44 |
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