【摘 要】
:
针对着陆过程中飞机对象的非最小相位特性,设计了基于稳定逆的飞机纵向自动着陆控制律。通过求解系统内部动态的有界解,设计了系统对于期望轨迹的稳定逆;基于相对阶的概念设
论文部分内容阅读
针对着陆过程中飞机对象的非最小相位特性,设计了基于稳定逆的飞机纵向自动着陆控制律。通过求解系统内部动态的有界解,设计了系统对于期望轨迹的稳定逆;基于相对阶的概念设计了光滑、连续的进场着陆期望轨迹。由稳定逆产生期望控制输入和状态轨迹,反馈控制器克服飞机参数不确定性及外界干扰。仿真结果表明,所设计的自动着陆控制律具有精确跟踪期望轨迹的能力,满足国军标关于纵向着陆的要求。
Aiming at the non-minimum phase characteristic of aircraft during landing, a control law of longitudinal automatic landing of aircraft based on stable inversion is designed. By solving the dynamic bounded solution in the system, the stability of the system against the desired trajectory is designed. The smooth and continuous approach trajectory of landing approach is designed based on the concept of relative order. By stabilizing inversely generated expected control inputs and state trajectories, the feedback controller overcomes the uncertainties of the aircraft parameters and the external disturbances. The simulation results show that the proposed automatic landing control law has the ability of accurately tracking the desired trajectory and meets the requirements of the national military standard for longitudinal landing.
其他文献
重点研究了采用数字图像处理技术对沥青混合料等混合材料的数字图像进行分析和处理。利用VC.NET2005可视化开发环境,设计了沥青混合料检测系统,给出了系统设计主体结构。并对系统的设计模型、统计规划、设计思想和系统中各功能模块进行了说明。
Background Over-expression of P-glycoprotein (P-gp),encoded by the MDR1 gene,confers multidrug resistance (MDR) in renal cell carcinoma (RCC) and is a major rea
Background Successful aging (SA) and mild cognitive impairment (MCI) are heterogeneous groups of aging.To explore the heterogeneity,the functional connectivity
Although the incidence of coronary stent fracture (SF)is relatively rare,the increasing amount of patients undergoing percutaneous coronary intervention (PC1)in
Background Noninvasive functional magnetic resonance imaging (fMRI) techniques have opened a “window” into the brain.allowing us to investigate the anatomical
A patient referred to our hospital,diagnosed with left idiopathic chronic orchialgia,was evaluated with a thorough medical and psychiatric history,physical exam
目的 探讨心理干预对汽车安全气囊致眼外伤患者焦虑抑郁的作用.方法 选择34例汽车安全气囊所致眼外伤患者,随机分为干预组和对照组各17例.对照组采用常规干预,干预组采用心理
目的 探讨晚发性抑郁患者睡眠障碍的多导睡眠图特点.方法 15例晚发性抑郁患者与10例健康老年人分别进行汉密尔顿抑郁量表(Hamilton Depression Scale,HAMD)的评分、多导睡眠
Background Aspergillus fumigatus (A.fumigatus) is a ubiquitous saprophytic fungus responsible for the majority of invasive mold infections in patients undergoi