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浏览/检索结果: 共31条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Nearly optimal stabilization of unknown continuous-time nonlinear systems: A new parallel control approach 期刊论文  OAI收割 NEUROCOMPUTING, 2024, 卷号: 578, 页码: 12 作者:  Lu, Jingwei;  Wang, Xingxia;  Wei, Qinglai;  Wang, Fei-Yue   |  收藏  |  浏览/下载：16/0  |  提交时间：2024/07/03 Adaptive dynamic programming (ADP)  Integral reinforcement learning (IRL)  Nearly optimal control  Nonaffine nonlinearity  Parallel control  Unknown nonlinear systems   Control of Nonlinear Uncertain Systems by Extended PID 期刊论文  OAI收割 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 2021, 卷号: 66, 期号: 8, 页码: 3840-3847 作者:  Zhao, Cheng;  Guo, Lei   |  收藏  |  浏览/下载：26/0  |  提交时间：2021/10/26 Nonlinear systems  Uncertain systems  PD control  PI control  Uncertainty  Design methodology  Regulation  Affine nonlinear systems  diffeomorphism  normal form  proportional-integral-derivative (PID) control  regulation  system uncertainty   Design and Locomotion Control of a Dactylopteridae-Inspired Biomimetic Underwater Vehicle With Hybrid Propulsion 期刊论文  OAI收割 IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, 2021, 页码: 13 作者:  Zhang, Tiandong;  Wang, Rui;  Wang, Yu;  Cheng, Long;  Wang, Shuo   |  收藏  |  浏览/下载：30/0  |  提交时间：2022/01/27 Propulsion  DC motors  Robots  Control systems  Servomotors  Underwater vehicles  Sports  Biomimetic underwater vehicle (BUV)  body and  or caudal fin (BCF)  median and  or paired fin (MPF) hybrid propulsion  central pattern generators (CPGs)  fuzzy proportion integral differential (PID)   A parameter formula connecting PID and ADRC 期刊论文  OAI收割 SCIENCE CHINA-INFORMATION SCIENCES, 2020, 卷号: 63, 期号: 9, 页码: 13 作者:  Zhong, Sheng;  Huang, Yi;  Guo, Lei   |  收藏  |  浏览/下载：29/0  |  提交时间：2020/09/23 nonlinear uncertain systems  proportional-integral-derivative  PID  active disturbance rejection control  ADRC  extended state observer  ESO   An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242 期刊论文  OAI收割 Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101 作者:  HXMT   |  收藏  |  浏览/下载：61/0  |  提交时间：2022/02/08 accretion  accretion disks  black hole physics  X-rays: binaries  time  Astrophysics - High Energy Astrophysical Phenomena  Abstract: Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions. Methods: Within the multitude of observations of Swift J1658.2-4242 during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst. Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.   Robust Adaptive Tracking Control for Quadrotors by Combining PI and Self-Tuning Regulator 期刊论文  OAI收割 IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 2019, 卷号: 27, 期号: 6, 页码: 2663-2671 作者:  Lei, Wenchao;  Li, Chanying;  Chen, Michael Z. Q.   |  收藏  |  浏览/下载：44/0  |  提交时间：2020/05/24 Adaptation models  Adaptive control  Control systems  Dynamic scheduling  Robustness  Pulse width modulation  Proportional-integral (PI)  quadrotor  robust adaptive control  self-tuning regulator (STR)  tracking control  unmanned aerial vehicle (UAV)   Control of a Two-wheeled Machine with Two-directions Handling Mechanism Using PID and PD-FLC Algorithms 期刊论文  OAI收割 International Journal of Automation and Computing, 2019, 卷号: 16, 期号: 4, 页码: 511-533 作者:  Khaled M. Goher;  Sulaiman O. Fadlallah   |  收藏  |  浏览/下载：20/0  |  提交时间：2021/02/22 Two-wheeled inverted pendulum (IP) with two direction handling  Lagrangian formulation  proportional-integral-derivative (PID)  fuzzy logic control (FLC)  under-actuated systems.   A hybrid control strategy for the optoelectronic stabilized platform of a seeker 期刊论文  OAI收割 Optik, 2019, 卷号: 181, 页码: 1000-1012 作者:  M.Y.Zhang;  H.Liu;  H.W.Zhang;  X.K.Miao   |  收藏  |  浏览/下载：35/0  |  提交时间：2020/08/24 Optoelectronic stabilized platform of a seeker,Butterworth low pass,filter,Disturbance rejection rate of a seeker,Disturbance observer,Notch filter,Incomplete derivative proportional integral derivative,(IDPID) controller,systems,Optics   Refined Jensen-Based Multiple Integral Inequality and Its Application to Stability of Time-Delay Systems 期刊论文  OAI收割 IEEE-CAA JOURNAL OF AUTOMATICA SINICA, 2018, 卷号: 5, 期号: 3, 页码: 758-764 作者:  Wang Jidong;  Wang Zhanshan;  Ding Sanbo;  Zhang Huaguang   |  收藏  |  浏览/下载：17/0  |  提交时间：2021/02/02 BARRIER LYAPUNOV FUNCTIONS  ADAPTIVE-CONTROL  FUNCTIONALS  Multiple integral approach  refined Jensen-based multiple integral inequality (RJMII)  stability analysis  time-delay systems   Refined Jensen-Based Multiple Integral Inequality and Its Application to Stability of Time-Delay Systems 期刊论文  OAI收割 IEEE-CAA JOURNAL OF AUTOMATICA SINICA, 2018, 卷号: 5, 期号: 3, 页码: 758-764 作者:  Wang Jidong;  Wang Zhanshan;  Ding Sanbo;  Zhang Huaguang   |  收藏  |  浏览/下载：25/0  |  提交时间：2021/02/02 BARRIER LYAPUNOV FUNCTIONS  ADAPTIVE-CONTROL  FUNCTIONALS  Multiple integral approach  refined Jensen-based multiple integral inequality (RJMII)  stability analysis  time-delay systems