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	High-sensitivity multi-channel DPSK system with real-time phase lock controller for free-space optical communication 期刊论文 OAI收割 FRONTIERS IN PHYSICS, 2022, 卷号: 10 作者: Gao, Duorui; Li, Tianlun; Xie, Zhuang; Meng, Jiacheng; Jia, Shuaiwei \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2022/10/14 free-space optical communication differential phase shift keying delay line interferometer phase lock controller wavelength division multiplexing
	Research on satellite platform vibration compensation technology for space optical communication (EI CONFERENCE) 会议论文 OAI收割 2012 International Meeting on Opto-Electronics Engineering and Materials Research, OEMR 2012, July 27, 2012 - July 29, 2012, Shenyang, Liaoning, China Han C.; Li X. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 The piezo-electric steering control system is used to compensate the vibration of satellite platform. The mathematical model of piezo-electric steering system is built. The adaptive controller based on improved LMS filter algorithm is designed according to this system characteristic. The adaptive delay filter is designed to solve slow convergence speed problem of traditional algorithm. Meanwhile the adaptive delay filter can also compensate phase delay of control circuit. The adaptive deviation filter is introduced and it effectively compensates the vibration deviation which is low frequency and high amplitude. The experimental results show that the remained errors are rad which meets space optical communication requirement and proves that this control scheme is valid and feasible. (2012) Trans Tech Publications Switzerland.
	High precision test method for dynamic imaging of space camera (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Advanced Computer Control, ICACC 2010, March 27, 2010 - March 29, 2010, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States 作者: Jin L.-X.; Zhang K.; Zhang K.; Zhang K.; Zhang K. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 A test method for dynamic imaging of space TDICCD (Time Delay and Integration Charge Coupled Devices) camera was presented in this paper. The test method adopted the PLL (Phase Locked Loop) technology and CMAC (Cerebella Model Articulation Controller) friction compensation as control strategy. Furthermore According to this method a test system for dynamic imaging of space TDICCD camera was designed and implemented. The system simulated the movement of the ground objects relative to the space aerocraft to validate the capability of image speed match and the dynamic imaging quality of TDICCD camera. The design adopted a precision turntable and a drift turntable to simulate the movement around the earth and the drift motion in different latitude due to the rotation of earth of the aerocraft. The turntables were drived by permanent magnet torque motor which was powered by PWM (Pulse Width Modulation). The system adopted DSP (Digital Signal Processor) as the control core and reached a very high performance. The experimental results showed that the steady speed error was better than 0.01 % and the instantaneous speed error reached 0.0267%. The precision of the test system designed met the requirement for dynamic imaging of TDICCD camera. 2010 IEEE.
	Differential phase space reconstructed for chaotic time series 期刊论文 OAI收割 APPLIED MATHEMATICAL MODELLING, 2009, 卷号: 33, 期号: 2, 页码: 999-1013 作者: Xu, Pengcheng \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2018/07/30 Differential phase space Delay phase space Correlation dimension Lyapunov exponents Forecasting Recursive least square