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	Linear-FM random radar waveform compressed by dechirping method 期刊论文 OAI收割 IET RADAR SONAR AND NAVIGATION, 2019, 卷号: 13, 期号: 7, 页码: 1107-115 作者: Liu, Jiafang; Zhang, Yunhua; Dong, Xiao \| 收藏 \| 浏览/下载：61/0 \| 提交时间：2019/08/26 radar resolution FM radar random noise radar imaging frequency modulation synthetic aperture radar radar detection jamming dechirping compression method digital radio frequency memory repeat jammer random noise waveforms random radar echo signal low-speed analogue-to-digital converter LFM waveform compression high-resolution circular synthetic aperture radar imaging experiment linear-FM random radar waveform linear frequency modulation random radar waveform
	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：42/0 \| 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.
	Single ridge waveguide electroabsorption modulated DFB laser for 2.5Gb/s transmission 会议论文 OAI收割 conference on optical interconnects for telecommunication and data communications, beijing, peoples r china, nov 08-10, 2000 Liu GL; Wang W; Zhang BJ; Chen WX; Zhou F; Zhang JY; Wang XJ; Zhu HL 收藏 \| 浏览/下载：32/0 \| 提交时间：2010/10/29 MOVPE selective-area-growth electroabsorption modulator distributed feedback laser ridge waveguide high-speed digital modulation optical transmission LIGHT-SOURCE DBR LASER MQW