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	Robust Observer-based Control of Nonlinear Multi-omnidirectional Wheeled Robot Systems via High Order Sliding-mode Consensus Protocol 期刊论文 OAI收割 International Journal of Automation and Computing, 2021, 卷号: 18, 期号: 5, 页码: 787-801 作者: M. R. Rahimi Khoygani \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2021/09/13 Multi-agent system (MAS) nonlinear controller nonlinear observer high-order sliding mode consensus protocol omnidirectional robots
	Robust Speed Control for Permanent Magnet Synchronous Motors Using a Generalized Predictive Controller With a High-Order Terminal Sliding-Mode Observer 期刊论文 OAI收割 Ieee Access, 2019, 卷号: 7, 页码: 121540-121551 作者: M.Shao; Y.T.Deng; H.W.Li; J.Liu; Q.Fei \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2020/08/24 Permanent magnet synchronous motor (PMSM),generalized predictive,control,high-order terminal sliding mode observe,speed control,disturbance compensation,pmsm,law,Computer Science,Engineering,Telecommunications
	Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China 作者: Liu Y.; Liu Y.; Wang L.; Wang L.; Wang L. 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/03/25 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1 2 and 3) in one period QW depth barrier width the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications Switzerland.
	Computer simulation of thermal focal length of laser crystal and thermally-near-unstable resonator 会议论文 OAI收割 2012 9th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2012, Chongqing, China, MAY 29-31, 2012 作者: Geng AC(耿爱丛); Li BH; Chen XB; Yang XD; Yang MJ(杨明江) 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/02/26 Computer simulation Fuzzy systems Lasers Gain medium High beam quality High order mode High output power Laser crystals LD side-pumped ND : YAG lasers Output power Pump power SIMPLE method Theoretical prediction Thermal focal length
	808nm high-power semiconductor laser therapeutic apparatus based on LPC2138 (EI CONFERENCE) 会议论文 OAI收割 2011 IEEE International conference on Intelligent Computation and Bio-Medical Instrumentation, ICBMI 2011, December 14, 2011 - December 17, 2011, Wuhan, Hubei, China 作者: Wang B.; Wang B. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 In this paper we designed an intelligent 808nm high-power semiconductor laser therapeutic apparatus with the LPC2138 ARM processor. The laser is driven by the digital constant current source module and the apparatus has good human-machine interaction performance on account of set the parameters intelligently. The function such as operation mode output power output pulse width and pulse cycle could be easily set through the TFT touch screen. The application software could transmission the log data to the computer by the USB interface in order to check and study the records later. 2011 IEEE.
	Theoretical analysis of emission characteristics of second-order distributed feedback semiconductor lasers (EI CONFERENCE) 会议论文 OAI收割 Semiconductor Lasers and Applications IV, October 18, 2010 - October 19, 2010, Beijing, China 作者: Liu Y.; Liu Y.; Qin L.; Liu Y.; Wang L. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 Based on the modified coupled-wave theory the emission characteristics including threshold gain photon density distribution in the cavity and external differential quantum efficiency for second-order DFB lasers are investigated. Numerical simulation results show that for given device structure with wavelength of 1.55 m the feedback coupling coefficient and the surface radiation coupling coefficient of the second-order grating have great influence on the emission characteristics of the device. By choosing different duty cycles of the grating we can change the two coupling coefficients which affect the emission characteristics. For an overall consideration an optimal duty cycle of 0.43 is chosen. The optimized results show that the device works without degeneracy modes and spatial burning hole. Besides the side-mode suppress ratio (SMSR) and external differential quantum efficiency reach as high as 42 dB and 47% respectively. 2010 SPIE.
	The design of high-speed optical fiber communication system based on PCI bus (EI CONFERENCE) 会议论文 OAI收割 2010 2nd IEEE International Conference on Advanced Management Science, ICAMS 2010, July 9, 2010 - July 11, 2010, Chengdu, China 作者: Zhang L.-G.; Zhang L.-G.; He X. 收藏 \| 浏览/下载：56/0 \| 提交时间：2013/03/25 In order to increase the transmission distance and reduce noise effectively a communication system with the optical fiber interface is developed in this paper. In the system the PCI bus is adopted as the connection bus between the underlying optical fiber transceiver module circuitry and host computer using the WDM driver. The FPGA is the core logic of the whole system responsible for data transmission and timing logic control. The module structure and the design method of the PCI bus the principle and the design of optical interface module and the bottom-driven development are described in this paper. The experiment results show that the system has basically meet requirement targets. It can achieve the maximum transfer rate of 40MBps when running in the DMA mode. With long transmission distance strong antiinterference and high scalability this system has stable and reliable performance. 2010 IEEE.
	Attitude determination of small, dim and high-speed targets based on multi-CMOS intersecting system (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Information Science and Engineering, ICISE2010, December 4, 2010 - December 6, 2010, Hangzhou, China 作者: Li M.; Zhao L.; Wang J. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 In order to measure attitude of small dim and high-speed targets in shooting range intersecting system based on multiple high-speed CMOS cameras was introduced in this paper. CMOS cameras were laid near from objects for small size using multiple CMOS cameras to compose intersecting system for big number of targets tested and selecting CMOS camera between CMOS and CCD for low cost and considering damage to measurement equipment of objects tested. Pitch angle and yaw angle were measured by extracting axle wire through image processing image sequences were obtained from cameras laying on two sides. Velocity of objects was calculated by least square curve-fitting acquiring coordinate of centroid on image received by CMOS camera laying below effective viewing field. One CMOS camera was laid on right ahead for measuring roll angle. Station mode introduced in this paper has virtue of low cost and free extending. 2010 IEEE.
	Mechanism of pulse shaping in femtosecond lasers based on the high-order soliton 期刊论文 OAI收割 optics and laser technology, 2000, 卷号: 32, 期号: 4, 页码: 251-253 作者: Zhao, SH; Chen, GF; Wang, YS; Yu, LJ 收藏 \| 浏览/下载：21/0 \| 提交时间：2015/11/09 Kerr-lens mode-locking self-phase modulation group-velocity dispersion high-order soliton