| 不对称信息理论与非线性鲁棒控制算法 |
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| 引用本文： | 张显库,杨盐生. 不对称信息理论与非线性鲁棒控制算法[J]. 控制与决策, 2005, 20(11): 1241-1244 |
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| 作者姓名： | 张显库 杨盐生 |
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| 作者单位： | 大连海事大学,航海动态仿真和控制实验室,辽宁,大连,116026;大连海事大学,航海动态仿真和控制实验室,辽宁,大连,116026 |
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| 基金项目： | 国家自然科学基金项目（60474014）. |
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| 摘 要： | 针对非线性船舶航向保持系统，通过设计其精确反馈线性化控制器，给出一种物理意义更明显的解释，即非线性精确反馈线性化控制器由非线性函数项和常规线性控制器组成．将简化的精确反馈线性化法与闭环增益成形算法相结合，设计其非线性鲁棒控制器，增加了信息的传递量，在提高系统鲁棒性能的基础上，使该算法成为实际工程上可用的算法．仿真结果表明，当信息传递充分时，航向保持效果良好．
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| 关 键 词： | 不对称信息理论 闭环增益成形 精确反馈线性化 非线性 鲁棒性 |
| 文章编号： | 1001-0920（2005）11-1241-04 |
| 收稿时间： | 2004-11-09 |
| 修稿时间： | 2004-11-092005-03-11 |
Asymmetric Information Theory and Nonlinear Robust Control Algorithm |
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| ZHANG Xian-ku,YANG Yan-sheng. Asymmetric Information Theory and Nonlinear Robust Control Algorithm[J]. Control and Decision, 2005, 20(11): 1241-1244 |
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| Authors: | ZHANG Xian-ku YANG Yan-sheng |
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| Affiliation: | Laboratory of Simulation and Control of Navigation Systems, Dalian Maritime University, Dalian 116026, China |
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| Abstract: | Asymmetric information theory is introduced. For a nonlinear course keeping system of ships, the information transmitting capacity is strengthened through transforming the exact feedback linearization controller into a controller consisting of nonlinear terms and a normal linear controller. A simplified nonlinear robust control algorithm is presented, which connects the exact feedback linearization with the closed-loop gain shaping algorithm. The algorithm is applicable in engineering and the simulation results show that the course-keeping performance is improved. |
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| Keywords: | Asymmetric information theory Closed-loop gain shaping Exact feedback linearization Nonlinear Robustness |
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