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《Science of Surveying and Mapping》 2011-05
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Auto-focusing method based on distance function

HE Zhen-xin,LIU Chun-tong,ZHAO Xiao-feng,MA Jian(Second Artillery Engineering Institute,Xi'an 710025,China)  
Achievement of auto-focusing function in theodolite's telescope system is a primary condition in automatically measuring the angels of the targets.To meet the specific requirement such as small view field,severe environment and short response time,an auto-focusing method based on distance function was presented in the paper.According to the objective distance of target by use of well designed distance function the focusing distance could be calculated and subsequently transformed into locating signal,which drives the linear stepping motor to make the pancreatic lens move to the appropriate place.The analysis results showed that this method could meet the automatically measuring requirement of theodolite system with high precision,quick response and good adaptability to environment.
【CateGory Index】: TH761.1
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Chinese Journal Full-text Database 5 Hits
1 Li Yihe(Wuhan Technical University of Surveying and Mapping);A DISCUSSION ON THE STADIA FORMULAOF DIGITAL LEVEL[J];Acta Geodaetica Et Cartographic Sinica;1993-04
2 QIN Lin-ling YU Jing-chi(Jiangsu Province Key Laboratory of Modern Optical Technology,SooChow University,Suzhou 215006,China);Hartmann Test for Progressive Addition Lenses[J];Optics & Optoelectronic Technology;2008-05
3 JIA Xiao-yan,XIAO Ze-xin,DENG Shi-chao(Institute of Opt-mechatronics,Guilin University of Electronic Technology,Guilin 541004,China);Research on auto-focusing method based on focusing evaluation function[J];Optical Technique;2007-S1
4 WU Lin-tao1,2,CAI Sheng1,2,QIAO Yan-feng1(1.Changchun Institute of Optics,Fine Mechanics and Physics,the Chinese Academy of Sciences,Changchun 130033,China;2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China);Modeling and Analysis of Dialyte-lens Auto-focusing Technology for Theodolite[J];Laser & Infrared;2008-12
5 HU Jing-jiang, FENG Yong-hao (Telecommunication Engineering Institute, Air Force Engineering University, Xi’an Shaanxi 710077, China);Application of Least Squares Algorithm In JTIDS Relative Navigation[J];Communications Technology;2009-04
Chinese Journal Full-text Database 10 Hits
1 XU Wen-wen1,ZHOU Jian-yong2,TANG Zun-lie2,JIANG Zhi-wei2(1. School of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,CHN;2. Chongqing Optoelectronics Research Institute,Chongqing 400060,CHN);Non-uniformity Correction of IRFPA Based on Quadratic Curve Fitting[J];Semiconductor Optoelectronics;2009-05
2 Tang Jiade,Liang Lin(Department of Mathematics Chuxiong Normal University,Chuxiong 675000,China);A Markov Chain Model of Urban Air Pollution Control[J];Environmental Science and Management;2008-01
3 Liu Chuntong,He Zhenxin,Zhao Xiaofeng,Zhao Bing(Staff Room 202,Second Artillery Engineering College,Xi’an 710025,China);Research on Leveling and Centering Error Compensation of Theodolite[J];Ordnance Industry Automation;2010-10
4 Wang Yanjing (School of Electricity and Information Engineering,BUCEA Beijing 100044);Bayes Decision Procedure Bases on MATLAB Progame[J];Journal of Beijing University of Civil Engineering and Architecture;2007-04
5 SHI Jing,MIAO Ling-juan,GAO Wei-xi(School of Automation,Beijing Institute of Technology,Beijing 100081,China);Improving the Speed of Calculation Accuracy in MEMS INS System[J];Transactions of Beijing Institute of Technology;2010-01
6 LI Cheng, AN Bai-yong, YU Li-jiang (Navy Submarine Academy, Qingdao 266071, China);Study on the Data Fitting of Electromagnet Control Gyrocompass Course Value under the Status of Impact[J];Ship Engineering;2010-S2
7 HE Ming1,2(1.School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China,Chengdu 610054,P.R.China;2.Electrical and Electronic Engineering Department,Chengdu Electromechanical College,Chengdu 610031,P.R.China);Application of MATLAB and Visual C++ mixed-language programming in dielectric properties[J];Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition);2010-02
8 FENG Li-feng,LV Jing-hua,ZU Da-peng(Hulan College of Harbin Normal University,Harbin 150500,China);Plotting Spatial Distribution of Spherical Function in MATLAB[J];Journal of Changchun Normal University;2007-02
9 LIU Yi-juan, ZHANG Zhi-rang(Dept. of Computing Science, CUIT, Chengdu 610225, China);Application of grey system theory to analysis of GDP composition[J];Journal of Chengdu University of Information Technology;2006-S1
10 WANG Ju (College of Electronic Information Engineering,Changchun University,Changchun 130022,China);Design of user interface of telephone and address book based on GUI of MATLAB[J];Journal of Changchun University;2008-06
China Proceedings of conference Full-text Database 2 Hits
1 Chen RuiBao Dong MingLi Zhu LianQing Wang Jun (1 Department of measurement and control technology and instrumentation School of Optoelectronic Information and Telecommunication Engineering Beijing Information Science and Technology University Beijing 100192 China);Precision Research of Large-size Close-range Photogrammetry System[A];[C];2009
2 GUO Yu-bo, YAO Yu (Control and Simulation Center, Harbin Institute of Technology, Harbin 150001, China);Structural parameter optimization of binocular vision measuring system[A];[C];2006
【Secondary Citations】
Chinese Journal Full-text Database 9 Hits
1 Chang Qing Liu Zhongkan\ Zhang Qishan (Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering);Study of the Alogorithm for GPS Positioning and Velocity Measurement[J];JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS;1998-05
2 YANG Bing-shang,LIAO Hai-yang(Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education,Chongqing University,Chongqing 400030,China);Automatic Measuring Method of Eyeglass Lens Power[J];Journal of Chongqing University(Natural Science Edition);2006-10
3 LIANG Cui-ping1, 2, 3,ZHANG Tao1, 2, 3,GAO Yan2, 3,QIAO Yan-feng2 ( 1. School of Mechanical and Electric Engineering, Tianjin Polytechnic University, Tianjin 300160, China; 2. Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Science, Changchun 130033, China; 3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China );Real time auto-focusing system used in the theodolite[J];Opto-Electronic Engineering;2007-12
4 XIE Lun-zhi BIAN Hong-lin WANG Zhen-hua (Huazhong Institute of Electro-Optics, Wuhan 430073, China);Study of the Subpixel Interpolation of Image Spots with Matrix Detectors[J];Optics & Optoelectronic Technology;2003-02
5 Xu Weian(Changchun Institute of Optics and Fine Mechanism,Chinese Academy of Sciences, Changchun 130022);Structure Design of Automatic Focussing Mechanism for Cinetheodolite[J];OPTICS AND PRECISION ENGINEERING;1996-03
6 LI Yu-feng, HAO Zhi-hang (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China);Research of hyper accuracy subpixel subdivision location algorithm for star image[J];Optical Technique;2005-05
7 ZHENG Yi (School of Technical Physics,Xidian University,Xi'an 710071,China);Subpixel Location of the Center of Laser Spot Based on Spatial Moments[J];Laser & Infrared;2005-07
8 GONG Guang-yong,HE Wen-zhong,GAO Xu-hui(North China Rearch Institute of Electro-optics,Beijing 100015,China);Optimized Mountain Climb-searching of Auto-focusing in Infrared Imaging System[J];Laser & Infrared;2007-11
9 Li Yihe;A Telescope Objective System Consisting of Three—lens Clusters[J];Journal of Wuhan Technical University of Surveying and Mapping;1987-02
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