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浏览/检索结果: 共25条，第1-10条 帮助 限定条件 内容类型：会议论文    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     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择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发表日期升序发表日期降序 Design of a bionic olfactory, tactile integrated system and its application in chicken meat quality inspection 会议论文  OAI收割 4th International Conference of Bionic Engineering, ICBE 2013, August 13, 2013 - August 16, 2013, Nanjing, China 作者:  Dai L. 收藏  |  浏览/下载：80/0  |  提交时间：2015/04/27 Realization of sub-micron radius of curvature measurement in vertical interferometer workstation 会议论文  OAI收割 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, AOMATT 2014, April 26, 2014 - April 29, 2014, Harbin, China 作者:  Wang R.;  Zhang W.;  Zhang W. 收藏  |  浏览/下载：14/0  |  提交时间：2015/04/27 High gain observer for drag tracking in mars entry longitudinal guidance 会议论文  OAI收割 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 ADRC trajectory tracking control based on PSO algorithm for a quad-rotor 会议论文  OAI收割 2013 IEEE 8th Conference on Industrial Electronics and Applications, ICIEA 2013, June 19, 2013 - June 21, 2013, Melbourne, VIC, Australia 作者:  Gao Q.;  Xu D. 收藏  |  浏览/下载：11/0  |  提交时间：2014/05/15 Study on radius of curvature measurement system by interferometry 会议论文  OAI收割 Asia Pacific Conference on Optics Manufacture 2012, APCOM 2012, August 26, 2012 - August 28, 2012, Changchun, China, August 26, 2012 - August 28, 2012 作者:  Dai L.;  Wang G. 收藏  |  浏览/下载：11/0  |  提交时间：2014/05/15 High gain observer for drag tracking in mars entry longitudinal guidance (EI CONFERENCE) 会议论文  OAI收割 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.   Trajectory tracking control of a quad-rotor UAV based on command filtered backstepping (EI CONFERENCE) 会议论文  OAI收割 2012 3rd International Conference on Intelligent Control and Information Processing, ICICIP 2012, July 15, 2012 - July 17, 2012, Dalian, China Gong X.; Bai Y.; Peng C.; Zhao C.; Tian Y. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 A quad-rotor unmanned aerial vehicle is an under-actuated  strong coupled nonlinear system with parameters uncertainty and unknown external aerodynamic disturbance. The trajectory tracking control system with a nested double-loops structure is designed in this paper according to the coupling characteristic between the attitude angles and translational position. A PD control algorithm is proposed in the translational outer-loop to export the desired attitude signals to the attitude inner-loop. An adaptive backstepping control algorithm is designed in the inner-loop with respect to the uncertain rotational inertia and un-modeled disturbance  while in order to reduce the computational complexity the command filtered approach is introduced into the designing procedure. And finally  the numerical simulation results are presented for the trajectory tracking stabilization of a Quad-rotor  which demonstrates the excellent performance of the proposed control system and illustrate its robustness in face of disturbance and uncertain parameters. 2012 IEEE.   Trajectory tacking control of a quad-rotor based on active disturbance rejection control (EI CONFERENCE) 会议论文  OAI收割 2012 IEEE International Conference on Automation and Logistics, ICAL 2012, August 15, 2012 - August 17, 2012, Zhengzhou, China Gong X.; Tian Y.; Bai Y.; Zhao C. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 The objective of this paper is to deal with a trajectory tracking of a Quad-rotor unmanned aerial vehicle (UAV). For the model uncertainty  the external disturbance and the coupling factor are considered  an active disturbance rejection control (ADRC) algorithm is introduced into the designing procedure. The aircraft dynamic model is proposed in this article  based on which the closed-loop control system is divided into four independent channels with the coupling factor compensated by the extended state observer (ESO). The nonlinear state error feedback (NLSEF) algorithm is designed in each channel to improve the closed-loop dynamics. In this article  the ADRC controller is expressed in the discrete form. And finally  the simulation results show that the proposed control algorithm achieves a favourable tracking performance. 2012 IEEE.   Structure buckling load interval analysis of supercavitating projectile (EI CONFERENCE) 会议论文  OAI收割 2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011, June 12, 2011 - June 15, 2011, Guiyang, China 作者:  Zhou L. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 As a result of supercavitating projectiles with high underwater velocity  their structures undergo high longitudinal force. It is necessary to perform structure buckling load interval analysis because the uncertainty of structural own parameters should be considered. Critical buckling load of supercavitating projectiles is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each uncertainty variable are deduced  and the interval of structure critical buckling load is calculated by interval analysis and convex model methods. Numerical results show that the nominal value  lower and upper bounds of critical buckling load increase with the increment of the ratio of base diameter to cavitator diameter. And the uncertainty degree of basic variables should be controlled as far as possible in the project for high reliability. 2011 IEEE.   Robust trajectory tracking control of autonomous quad-rotor UAV based on double loop frame (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Materials, Mechatronics and Automation, ICMMA 2011, January 15, 2011 - January 16, 2011, Melbourne, VIC, Australia 作者:  Sun Q. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 This paper deals with the under-actuated characteristic of a quad-rotor unmanned aerial vehicle (UAV). By designing the double loop configuration  the autonomous trajectory tracking is realized. The model uncertainty  external disturbance and the senor noise are also taken into consideration. Then the H controller is put forward in the inner loop. An optimal stability augmentation control (SAC) method is used to stabilize the horizon position and keep it away from oscillation. By calculating the nonlinear decouple map  control quantity is converted to the speeds of the four rotors. At last some simulation results and the prototype implementation prove that the control method is effective.