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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序提交时间升序提交时间降序题名升序题名降序作者升序作者降序 基于SPGD的无波前探测自适应光学技术研究 学位论文 博士: 中国科学院大学, 2015 作者:  宋阳 收藏  |  浏览/下载：114/0  |  提交时间：2015/11/30 自适应光学  随机并行梯度下降算法  FPGA  迭代频率  与Hartmann级联   基于臂式机构的空间望远镜稳像控制研究 学位论文 博士: 中国科学院大学, 2014 杨维帆 收藏  |  浏览/下载：29/0  |  提交时间：2014/08/21 无人机飞行控制系统若干关键技术研究 学位论文 博士: 中国科学院大学, 2014 段镇 收藏  |  浏览/下载：267/0  |  提交时间：2014/08/21 ADRC based on disturbance frequency adaptive of aerial photoelectrical stabilized platform 期刊论文 Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2014, 卷号: 43, 期号: 5, 页码: 1574-1581 Li X.; Zhang B.; Sun J.; Mao D.; Bai X.; Shen H. 收藏  |  浏览/下载：11/0  |  提交时间：2015/04/24 High gain observer for drag tracking in mars entry longitudinal guidance 会议论文 2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China Wu K.; Cui H.; Ma D.; Cui P. 收藏  |  浏览/下载：6/0  |  提交时间：2014/05/15 High gain observer for drag tracking in mars entry longitudinal guidance (EI CONFERENCE) 会议论文 2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China Wu K.; Cui H.; Ma D.; Cui P. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 An extended high gain state and perturbation observer combined with feedback linearization was applied in drag tracking for Mars entry longitudinal guidance. The observer estimates the drag  the drag rate and the perturbation due to model uncertainty and disturbance for drag tracking. Mars entry simulation was performed to assess the performance of the adaptive guidance law. The results demonstrate that the proposed guidance law is robust to model error  and can recover the ideal performance of the feedback linearization control. Introduction In recent years  the concept of pinpoint landing has been proposed (2013) Trans Tech Publications  Switzerland.   Adaptive backstepping control of a dual-manipulator cooperative system handling a flexible payload (EI CONFERENCE) 会议论文 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Liu M.; Li Y.; Tang Z.; Chen C. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Two manipulators handling a flexible payload are studied based on adaptive backstepping control theory. Considering the complexity of the dynamic model  the obtained model is divided into a slow subsystem describing the large rigid motion and a fast subsystem expressing the elastic vibration by singular perturbation theory. A cooperative controller is designed based on adaptive backstepping control. The slow subsystem can complete system trajectory tracking performance. The fast subsystem can suppress the elastic vibration of the system. Stability of the system is proved by using Lyapunov stability theory. The validity of the proposed scheme is demonstrated by simulations. 2010 IEEE.