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	Compensation control strategy for photoelectric stabilized platform based on disturbance observation 期刊论文 OAI收割 Aerospace Science and Technology, 2024, 卷号: 145 作者: Chang, Sansan; Cao, Jianzhong; Pang, Ji; Zhou, Feihang; Chen, Weining \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2024/03/13 Photoelectric stabilized platform Disturbance rejection performance Adaptive proportion-integrator observer Robust sliding mode observer Robustness
	Giant photoresponse enhancement in Cr2O3 films by Ni doping-induced insulator-to-semiconductor transition 期刊论文 OAI收割 CERAMICS INTERNATIONAL, 2021, 卷号: 47 作者: Fan, Zihao; Zhu, Min; Pan, Shusheng; Ge, Jun; Hu, Ling \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2021/05/17 Ni doping Photoelectric performance Photo electrode
	Improved performance of a back-illuminated GaN-based metal-semiconductor-metal ultraviolet photodetector by in-situ modification of one-dimensional ZnO nanorods on its screw dislocations 期刊论文 OAI收割 Journal of Alloys and Compounds, 2019, 卷号: 775, 页码: 1213-1220 作者: Y.P.Chen; C.H.Zheng; L.Q.Hu; Y.R.Chen \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2020/08/24 GaN-based ultroviolet photodetectors,ZnO nanorods modification,Screw,dislocation passivation,Photoelectric performance improvement
	Unravelling the mechanism of interface passivation engineering for achieving high-efficient ZnO-based planar perovskite solar cells 期刊论文 OAI收割 Journal of Power Sources, 2019, 卷号: 438, 页码: 10 作者: Z.Y.Pang; Y.S.Sun; Y.B.Gao; X.Y.Zhang; Y.F.Sun \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2020/08/24 Perovskite solar cells,ZnO electron transport layers,UV-O-3 treatment,Photoelectric conversion efficiency,Interface passivation,electron-transport layers,zinc-oxide,low-temperature,thin-film,nanoparticles,performance,emission,progress,Chemistry,Electrochemistry,Energy & Fuels,Materials Science
	The stability design and realization of airborne platform based on TMS320F2812 (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：40/0 \| 提交时间：2013/03/25 Airborne electro-optical stable platform can isolate movement and vibration of the airframe stabilizes the optic axis of the photoelectic detector realize the observation and tracking for the object. It has comprehensive application value in army and cicil field. Most of present airborne platforms are analogic control system digital control system can improve the system general performance digital control is the development direction of platform systems. In view of the requirements of isolating disturbances and stabilizing optical axis of high-precision photoelectric guidance system a three-axis stabilized platform system centering on the rate gyro was designed. The disturbance-isolation theory of the stabilized platform was analyzed and the control structure including multiple closed-loops was designed. At last a controller of the servo system based on TMS320F2812 DSP has been designed. Experiment results meet the technical index and precision requirement and illustrate the practicability and effectiveness of the scheme. 2011 IEEE.
	Study on bandwidth mutual-benefit between the azimuth and pitch in an optoelectronic tracking system (EI CONFERENCE) 会议论文 OAI收割 MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China 作者: Guo J.; Guo J.; Chen J. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 Two-axis optoelectronic tracking equipments generally use such mode that azimuth and pitch system are independently controlled. It leads to the two structures completely uncoupled therefore and reduces the state space dimension. But the main problem is that the rotational inertia of azimuth is much larger than that of pitch it is an effective control mode to the two-axis photoelectric tracking equipments. which leads its dynamic tracking performance is worse. So to find a more suitable mechanics and more effective control strategy is necessary. Considering the tracking ability this paper designs BMC (bandwidth mutual compensation) to uniformly correct the error of both the azimuth and pitch system in real time it is realized by cross coupling control to the azimuth and pitch. The simulation result verified that compared with classical uncoupling system BMS not only guarantees the state space dimension but improves systematic tracking performance about 2
	Non-contact and on-line cone diameter measuring based on high speed linear CCD (EI CONFERENCE) 会议论文 OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China Guohui Z.; Jianhua W. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 The remarkable improvement of sensing and processing hardware performance makes the non-contact on-line high accuracy and high speed measuring possible by means of linear CCD. The goal of this pager is to describe the key questions on designing the cone diameter detecting system by linear CCD. This paper first describes the detecting scheme. In particular the factors affecting accuracy such as resolution voltage difference between neighbor pixels detecting rate and so on are analyzed and the quantitative estimation equations are provided. CCD takes on the photoelectric translation and measuring component double functions so the waveform of CCD output signal and the affecting factors merit deep discussion. On the basis of discussion several principles that can be used to improve the boundary recognition accuracy are presented.
	Design and DSP implementation of star image acquisition and Star point fast acquiring tracking (EI CONFERENCE) 会议论文 OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China 作者: Wang X.; Wang X.; Wang X. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 Star sensor is a special high accuracy photoelectric sensor. Attitude acquisition time is an important function index of star sensor. In this paper the design target is to acquire 10 samples per second dynamic performance. On the basis of analyzing CCD signals timing and star image processing a new design and a special parallel architecture for improving star image processing are presented in this paper. In the design the operation moving the data in expanded windows including the star to the on-chip memory of DSP is arranged in the invalid period of CCD frame signal. During the CCD saving the star image to memory DSP processes the data in the on-chip memory. This parallelism greatly improves the efficiency of processing. The scheme proposed here results in enormous savings of memory normally required. In the scheme DSP HOLD mode and CPLD technology are used to make a shared memory between CCD and DSP. The efficiency of processing is discussed in numerical tests. Only in 3.5ms is acquired the five lightest stars in the star acquisition stage. In 43us the data in five expanded windows including stars are moved into the internal memory of DSP and in 1.6ms five star coordinates are achieved in the star tracking stage.
	Research on the nonuniformity correction of linear TDI CCD remote camera (EI CONFERENCE) 会议论文 OAI收割 Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China Ya-xia L.; Zhi-hang H. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 Many applications such as industrial inspection and overhead reconnaissance benefit from line scanning architectures where time delay integration (TDI) significantly improves sensitivity[5]. Images with linear response have become the backbone of the imaging industry. But each pixel of the TDI CCD has unique light sensitivity characteristics. Because these characteristics and the lens of the optical system affect camera's linearization and its performance they must be removed through calibration. The process by which a CCD image is calibrated is known as nonuniformity correction. This paper discusses several methods of nonuniformity correction[2]. The first is one-point correction technique which requires only one calibration point. This approach is to shift each curve toward the nominal curve by subtracting the offset from or adding the offset to the average. The second is two-point correction technique which requires two calibration points. Each point is rotated and aligned so that all the detectors have the same response under the same radiance. The third is multipoint correction. It is recommended that more calibration points be implemented at appropriate regions of the response curve. Depend on the linear photoelectric response of the TDI CCD we use two-point calibration and the standard deviations for the images are given before and after the correction.