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	The detection method of sidelobe peaks parameter in weak signal regions based on NVPCA Image enhancement 会议论文 OAI收割 Beijing, China, 2023-07-25 作者: Wang, Zhengzhou; Wei, Jitong; Wang, Li \| 收藏 \| 浏览/下载：7/0 \| 提交时间：2024/02/07 Far field measurement NVPCA Diffraction inversion of sidelobe beam Angle transformation Parameter detection of sidelobe peaks
	Stress-deflection angle measurement of the aircraft wings using a biaxial inclination angle sensor 会议论文 OAI收割 Xiamen, PEOPLES R CHINAXiamen, PEOPLES R CHINA, JUL 06-08, 2018JUL 06-08, 2018 作者: Tian, Peng; Li, Fan-xing; Yin, Gui-gang; Wang, Da-kui; Hu, Song \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2019/08/23 space rotation shaft biaxial inclination angle sensor space coordinate transformation
	Correlation Between Grain Deviation Angles and the Partial Ordering Transformation of Grain Line in Bi4Si3O12 Micro-crystals 期刊论文 OAI收割 SCIENCE OF SINTERING, 2012, 卷号: 44, 页码: 257-264 作者: Zhang, Z. G.; Jiang, Z. Y.; Wang, X. F.; Tian, Q. Q. \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2018/07/05 Bi4si3o12 Grain Line Grain Deviation Angle Correlation Partial Ordering Transformation
	Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China 作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.
	Non-linear compensation algorithm of LOS locating in aerial remote sensor (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China 作者: Li J.; Li Y.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 A non-linear light-of-sight(LOS) locating compensation algorithm for certain aerial remote sensor is presented in this paper. The LOS locating system is composed of two main components which are an inertial reference frame to provide coarse LOS locating and a 2-axis Fast Steering Mirror to remove the frame's residual error. The azimuth and elevation of LOS are both affected by the FSM two-degree-of-freedom rotation which should be dealt with to raise the accuracy of LOS location. This paper extrapolates LOS locating algorithm of FSM by coordinate transformation and gives corresponding deviation analysis for different LOS poiting angles. It is found that the angle deviation grows rapidly with range of FSM's travel enlarging so the deviation must be eliminated. Through the data analysis for deviation a non-linear compensation algorithm is proved effective to reduce the error of LOS significantly. Taking LOS changing in [-3 deg 3 deg] as an example two analytic expressions are given and the LOS locating accuracy rises by 34 times compared with non-linear compensation unused and the cross coupling of LOS loating is 0.08%. 2011 IEEE.
	An image matching algorithm based on sub-block coding (EI CONFERENCE) 会议论文 OAI收割 2nd International Workshop on Computer Science and Engineering, WCSE 2009, October 28, 2009 - October 30, 2009, Qingdao, China 作者: Li S. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 In order to improve the speed of matching algorithm and simplify the processing of existing sub-block coding matching a new template matching method combined local gray value encoding matching and phase correlation is proposed. Matching process is divided into rough matching and fine matching. Rough matching divides the image into certain size blocks called R-block sums the gray value of each R-block pixel encodes the R-block according to the gray value distribution of R-block with the adjacent R-block and matches by step between the template and each search sub-image. Then fine matching results are obtained using phase correlation according to initial match parameters. The time complexity of the proposed method is (M2) .The new algorithm is faster than traditional algorithm by two orders of magnitude and the speed has improved twice compared with existing sub-block coding method. Experiments demonstrate that the new algorithm is robust to the linear transformation of pixel grey value and image noise and it also has the stability of small-angle rotation. 2009 IEEE.
	Modeling of satellite borne TDI CCD pitching imaging image motion velocity vector (EI CONFERENCE) 会议论文 OAI收割 2009 IEEE International Conference on Automation and Logistics, ICAL 2009, August 5, 2009 - August 7, 2009, Shenyang, China 作者: Zhang L.; Li S.; Zhang L. 收藏 \| 浏览/下载：14/0 \| 提交时间：2013/03/25 In order to obtain three-dimensional observation effect with single satellite borne time delay and integrate charge coupled device (TDI-CCD) pitching imaging is required. More accurate real-time image motion velocity vector computational model of space camera is also necessary to make the imaging perfect. Imaging motion velocity vector computation model must be set up on image plane at pitching imaging. According to the geometric relationship between the pitching imaging space camera and the Earth's rotation motion satellite borne TDI CCD pitching imaging motion velocity vector model is derived by mapping the ground speed to the image plane and using coordinate transformation method. The numerical simulation results show that the image velocity model can reduce deviation angle error about 33' and about 30% image motion speed error compared to traditional ground velocity model. 2009 IEEE.
	Semiunitary transformation and isospectral Hamiltonians in arbitrary dimensional space 期刊论文 OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 2001, 卷号: 36, 页码: 25-28 作者: Ruan, D; Wang, XJ; Huang, WC; Sun, HZ \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2018/05/31 semiunitary transformation action-angle approach isospectrality of Hamiltonians deformed angular momentum algebra
	Preliminary transformation on experimental data of small angle X-ray scattering 期刊论文 OAI收割 HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2001, 卷号: 25, 页码: #REF! 作者: Zhao H(赵辉); Dong BZ(董宝中); Rong LX(荣利霞); Wang J(王俊); Zhao, H 收藏 \| 浏览/下载：18/0 \| 提交时间：2016/04/12 small angle X-ray scattering data transformation scattering curve