文章基本信息

标题：RESEARCH OF NSV BASED ON OBSERVER
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作者：HE NAI-BAO ; GAO QIAN
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：50
期号：2
出版社：Journal of Theoretical and Applied
摘要：An anti-disturbance method with fast adaptive disturbance observer was proposed for nearspace vehicle (NSV) with severely changed aero-dynamic parameters and external disturbances. First, a mathematical model was built for the NSV. Then, the anti-disturbance controller was designed with adaptive law based on adaptive parameters and compensation term for error. With the nonlinear exponential term in adaptive law, the approaching speed of disturbances observer was increased. And the proposed controller can make the system errors converge to zero in the finite time. The strict theoretical analysis was given for the closed-loop system. The simulation results showed the proposed control strategy for NSV with good performance in rapidity and convergence.
关键词：Nearspace Vehicle (NSV); Adaptive Observer (AO); Nonlinear System (NS)