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浏览/检索结果: 共5条，第1-5条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Influence of Parameters on Radar Localization of Human Target Under Complex Shielding Environment 会议论文 Seoul, Korea, Republic of, December 16, 2019 - December 18, 2019 作者:  Huang, Ling;  Wang, Zhao;  Tian, Ming;  Bo, Qiyuan 收藏  |  浏览/下载：2/0  |  提交时间：2020/11/15 Errors  Linear systems  Multilayers  Radar  Radar shielding  Shielding  Ultra-wideband (UWB)  Correction method  Multilayer media  Obstacles parameters  Parameters estimation  Positioning error  Simulation analysis  Target positioning  Ultra wideband radars   Automated positioning of transparent targets using defocusing method in a laser proton accelerator 期刊论文 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, 卷号: Vol.927, 页码: 236-239 作者:  Yinren Shou;  Dahui Wang;  Pengjie Wang;  Jianbo Liu;  Zhengxuan Cao 收藏  |  浏览/下载：31/0  |  提交时间：2019/12/13 Laser proton acceleration  Transparent targets  Target positioning method   Technique for Positioning Moving Binocular Vision Measurement System and Data Registration with Ball Target 会议论文 作者:  Gu, Fei-fei;  Zhao, Hong;  Zhao, Zixin;  Zhang, Lu 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/10 positioning method  computer vision  error correction  ball target   Inspection focus technology of space tridimensional mapping camera based on astigmatic method (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China Wang Z.; Zhang L. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 The CCD plane of the space tridimensional mapping camera will be deviated from the focal plane(including the CCD plane deviated due to camera focal length changed)  under the condition of space environment and vibration  impact when satellite is launching  image resolution ratio will be descended because defocusing. For tridimensional mapping camera  principal point position and focal length variation of the camera affect positioning accuracy of ground target  conventional solution is under the condition of vacuum and focusing range  calibrate the position of CCD plane with code of photoelectric encoder  when the camera defocusing in orbit  the magnitude and direction of defocusing amount are obtained by photoelectric encoder  then the focusing mechanism driven by step motor to compensate defocusing amount of the CCD plane. For tridimensional mapping camera  under the condition of space environment and vibration  impact when satellite is launching  if the camera focal length changes  above focusing method has been meaningless. Thus  the measuring and focusing method was put forward based on astigmation  a quadrant detector was adopted to measure the astigmation caused by the deviation of the CCD plane  refer to calibrated relation between the CCD plane poison and the asrigmation  the deviation vector of the CCD plane can be obtained. This method includes all factors caused deviation of the CCD plane  experimental results show that the focusing resolution of mapping camera focusing mechanism based on astigmatic method can reach 0.25 m. 2010 Copyright SPIE - The International Society for Optical Engineering.   Line-of-sight locating algorithm for staring imaging aerial remote sensor (EI CONFERENCE) 会议论文 2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China Xiu J.; Huang P.; Li J.; Li Y.; Chen L. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 A line-of-sight (LOS) Locating algorithm for staring imaging is presented in this paper. Staring imaging is an imaging mode for aerial remote sensor  which photographs the designated earth-fixed target in muItidirections. Therefore  the details of interesting targets is available. For the target obscured or disguised  its advantage becomes more apparent. This paper proposes the method using two-axis rotation to achieve staring imaging  and establishes the system model and the associated coordinates. Adopting the method of coordinate transformation  the LOS Locating algorithm is constructed  which determines the LOS direction. For the validation of algorithm  Target Geolocation Algorithm is established using Simulink library blocks. Eventually  it proves the feasibility of the LOS Locating algorithm. This article provides a thought of LOS Locating algorithm for staring imaging. The method of coordinate transformation used in this paper can be applied to line-of-sight positioning in other imaging modes. 2010 IEEE.