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• 长春光学精密机械与物... [9]
• 高能物理研究所 [4]
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• 数学与系统科学研究院 [1]
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• OAI收割 [20]

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• 会议论文 [11]
• 期刊论文 [9]

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• 2023 [2]
• 2020 [3]
• 2017 [1]
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• Physics [4]
• 天文技术与方法 [1]

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浏览/检索结果: 共20条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 System identification under saturated precise or set-valued measurements 期刊论文  OAI收割 SCIENCE CHINA-INFORMATION SCIENCES, 2023, 卷号: 66, 期号: 1, 页码: 20 作者:  Zhao, Yanlong;  Zhang, Hang;  Wang, Ting;  Kang, Guolian   |  收藏  |  浏览/下载：24/0  |  提交时间：2023/02/07 system identification  Cramer-Rao lower bound  truncated data  precise measurement  set-valued measurement   Precise assembly and adjustment technology of fully free-form surface multi-reflection off-Axis optical system 会议论文  OAI收割 Shenzhen, China, 2023-08-04 作者:  Qin, Xing;  Fu, Xihong;  Yang, Fan;  Shen, Zhong;  Ji, Bindong   |  收藏  |  浏览/下载：14/0  |  提交时间：2024/02/28 Free-form Surface  Off-axis System  Adjustment Benchmark  Precise measurement  Assembly process   Conceptual Design of High-resolution Ultra-stable Spectrograph for GTC 会议论文  OAI收割 California, United States, 2020-12-13 作者:  Zhang K(张凯);  Zhu YT(朱永田);  Wang J(王靓);  Xiao D(肖东);  Ye HQ(叶慧琪)   |  收藏  |  浏览/下载：50/0  |  提交时间：2021/03/30 Gran Telescopio Canarias  High Resolution Spectrograph  Exoplanet  Precise Radial Velocity Measurement   Detection and analysis of Galileo signal in space anomalies from 2017 to 2018 期刊论文  OAI收割 IET RADAR SONAR AND NAVIGATION, 2020, 卷号: 14, 期号: 11, 页码: 1690-1696 作者:  Fan, Lihong;  Tu, Rui;  Zhang, Rui;  Han, Junqiang;  Zhang, Pengfei   |  收藏  |  浏览/下载：33/0  |  提交时间：2021/11/29 distance measurement  error analysis  satellite navigation  aircraft landing guidance  radio receivers  Galileo signal  space anomalies  broadcast ephemeris  user navigation  SIS anomaly  advanced receiver autonomous integrity monitoring  precise ephemeris  SIS error  healthy Galileo satellites  corresponding detection thresholds  satellite SIS anomalies  satellite clock error  SIS stability  time 7  0 hour  time 2  5 hour  time 50  0 hour  time 4  5 hour   Applications of differential barometric altimeter in ground cellular communication positioning network 期刊论文  OAI收割 IET SCIENCE MEASUREMENT & TECHNOLOGY, 2020, 卷号: 14, 期号: 3, 页码: 322-331 作者:  Hu, Zhengqun;  Zhang, Lirong;  Ji, Yuanfa   |  收藏  |  浏览/下载：22/0  |  提交时间：2021/12/06 cellular radio  height measurement  measurement errors  Global Positioning System  altimeters  barometers  least squares approximations  Kalman filters  surface fitting  spread spectrum communication  compensation  matrix algebra  GPS  signal message structure  power spectrum  spread spectrum ranging signal  fitting parameters  least-square solution  calibration compensation  system noise variance matrix  measurement noise variance matrix  multibase station correction  height information correction calculation  DBA system  systematic performance  differential barometric altimeter  ground cellular communication positioning network  measurement datum distribution  altitude positioning error  Global Positioning System  differential barometric altimetry system  systematic implementation level  continuous altitude measurement  precise altitude measurement  DBA systematic implementation aspect  two dimensional curved surface fitting function  sensor measurement correction  filtering effect  Kalman filter  measuring station  multiBSs  navigation fusion   The research of delta(CO2)-C-13 by use of wavelet de-noising at 2.008 mu m based on tunable diode laser absorption spectroscopy 期刊论文  OAI收割 ACTA PHYSICA SINICA, 2017, 卷号: 66, 期号: 2, 页码: 1-9 作者:  Niu Ming-Sheng;  Wang Gui-Shi 收藏  |  浏览/下载：16/0  |  提交时间：2018/05/04 Isotope Measurement  Novel Multi-pass Cell  Wavelet Denoising  Measurement Precise   多通道精密时间间隔测量系统的硏制 期刊论文  OAI收割 电子测量与仪器学报, 2013, 卷号: 27, 期号: 1, 页码: 69 作者:  辜新宇;  郭际;  施韶华;  李孝辉   |  收藏  |  浏览/下载：0/0  |  提交时间：2023/12/13 multi-channel  large measurement range  time-interval  precise measurement  多通道  大量程  时间间隔  精密测量   The research of round raster readheads scheme (EI CONFERENCE) 会议论文  OAI收割 3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China Cong J.-F. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 The round raster is extensively applied in all kinds of high accuracy angular displacement measurement and control system. With the development of precise mechanotronics measuring instrument  machining center  CNC machine and various precise location testing technology  a higher request is put forward to the accuracy and the function of raster measurement system. In this article it is concluded that double readheads is the most reasonable configuration scheme through tests of single readhead scheme  two readheads and four readheads. (2012) Trans Tech Publications.   The sequence measurement system of the IR camera (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China 作者:  Zhang H.-B.;  Han H.-X.;  Geng A.-H. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 Currently  the IR cameras are broadly used in the optic-electronic tracking  optic-electronic measuring  fire control and optic-electronic countermeasure field  but the output sequence of the most presently applied IR cameras in the project is complex and the giving sequence documents from the leave factory are not detailed. Aiming at the requirement that the continuous image transmission and image procession system need the detailed sequence of the IR cameras  the sequence measurement system of the IR camera is designed  and the detailed sequence measurement way of the applied IR camera is carried out. The FPGA programming combined with the SignalTap online observation way has been applied in the sequence measurement system  and the precise sequence of the IR camera's output signal has been achieved  the detailed document of the IR camera has been supplied to the continuous image transmission system  image processing system and etc. The sequence measurement system of the IR camera includes CameraLink input interface part  LVDS input interface part  FPGA part  CameraLink output interface part and etc  thereinto the FPGA part is the key composed part in the sequence measurement system. Both the video signal of the CmaeraLink style and the video signal of LVDS style can be accepted by the sequence measurement system  and because the image processing card and image memory card always use the CameraLink interface as its input interface style  the output signal style of the sequence measurement system has been designed into CameraLink interface. The sequence measurement system does the IR camera's sequence measurement work and meanwhile does the interface transmission work to some cameras. Inside the FPGA of the sequence measurement system  the sequence measurement program  the pixel clock modification  the SignalTap file configuration and the SignalTap online observation has been integrated to realize the precise measurement to the IR camera. Te sequence measurement program written by the verilog language combining the SignalTap tool on line observation can count the line numbers in one frame  pixel numbers in one line and meanwhile account the line offset and row offset of the image. Aiming at the complex sequence of the IR camera's output signal  the sequence measurement system of the IR camera accurately measures the sequence of the project applied camera  supplies the detailed sequence document to the continuous system such as image processing system and image transmission system and gives out the concrete parameters of the fval  lval  pixclk  line offset and row offset. The experiment shows that the sequence measurement system of the IR camera can get the precise sequence measurement result and works stably  laying foundation for the continuous system. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).   Data processing method of multi-position strap-down north seeking system based on SVD (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 Shen C.-W.; Liu C.; Yu S.-B.; Wang Z.-Q.; Li J.-R. 收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25 With the aim to fit the sin wave curve of a multi-position strap-down north seeking system and to calculate the real north angle accurately  the principles of the system and the algorithm of singular value decomposition(SVD) are introduced. The factors influencing the measuring precision are also analyzed. Then  the algorithm is adopted to fit curves. Experimental results indicate that the singular value decomposition is very precise  for its error sum is 1.1102V  and the squared error is 2.8mV. Moreover  for phase angle measurement  measured six times in same direction  the squared error is 24 (1). The method based on SVD can satisfy the system precision requirements of curve-fitting north seeking systems. 2011 IEEE.