中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A Real-Time Inverted Velocity Model for Fault Detection in Deep-Buried Hard Rock Tunnels Based on a Microseismic Monitoring System 期刊论文  OAI收割
BUILDINGS, 2024, 卷号: 14, 期号: 9, 页码: 19
作者:  
  |  收藏  |  浏览/下载:7/0  |  提交时间:2025/06/27
Distance and velocity measurement of coherent lidar based on chirp pulse compression 期刊论文  OAI收割
Sensors (Switzerland), 2019, 卷号: 19, 期号: 10
作者:  
Yang, Jing;  Zhao, Bin;  Liu, Bo
  |  收藏  |  浏览/下载:33/0  |  提交时间:2021/05/06
Measuring millimeter-scale distances in a laser self-mixing velocimeter with low-speed wavelength modulation 期刊论文  OAI收割
OPTICS COMMUNICATIONS, 2018, 卷号: 427, 页码: 107-111
作者:  
Sun, Wu;  Gui, Huaqiao;  Zhang, Peng;  Wu, Shan;  Li, Zhen
  |  收藏  |  浏览/下载:57/0  |  提交时间:2019/11/11
Coordination of multiple rigid bodies under distance-induced interaction topologies 期刊论文  OAI收割
IET CONTROL THEORY AND APPLICATIONS, 2018, 卷号: 12, 期号: 15, 页码: 2067-2075
作者:  
Deng, Juan;  Wang, Lin;  Liu, Zhixin;  Hu, Xiaoming
  |  收藏  |  浏览/下载:44/0  |  提交时间:2018/11/16
Assessment of underground tunnel stability to adjacent tunnel explosion 期刊论文  OAI收割
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2013, 卷号: 35, 页码: 227-234
作者:  
Li, J. C.
  |  收藏  |  浏览/下载:32/0  |  提交时间:2018/06/05
Geocentric distance's errors' correction of space cameras based on USGS DEM (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
作者:  
Li W.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
In order to correct the geocentric distance's error of TDI (Time Delay and Integration) CCD space camera in calculation of image motion compensation  the data source of the earth's height above sea level USGS DEM (United States Geological Survey Digital Elevation Model) has been introduced to make digital elevation map  the match error of the forward direction (the integral direction of TDI CCD) has been greatly decreased by correcting the geocentric distance error  and eliminate the influence to the relative error of image motion velocity  and correct the error generated by the different heights above sea level. After correcting  which greatly improves the imaging quality of TDI CCD space camera. 2011 IEEE.  a model of image motion calculation of nadir has been introduced  the calculation and analysis of the model shows that: the maximum error of image motion velocity about 1.72% has been decreased to 0.06%  and the influence of the geocentric distance error to the relative error of image motion velocity has been analyzed with the model  
Study of high speed photography measuring instrument (EI CONFERENCE) 会议论文  OAI收割
27th International Congress on High-Speed Photography and Photonics, September 17, 2006 - September 22, 2006, Xi'an, China
Zhang Z.; Sun J.; Wu K.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
High speed photograph measuring instrument is mainly used to measure and track the exterior ballistics  which can measure the flying position of the missile in the initial phase and trajectory. A new high speed photograph measuring instrument is presented in this paper. High speed photography measuring system records the parameters of object real-time  and then acquires the flying position and trajectory data of the missile in the initial phase. The detection distance of high speed photography is more than 4.5km  and the least detection distance is 450m  under the condition of well-balanced angular velocity and angular acceleration  program pilot track error less than 5. This instrument also can measure and record the flying trail and trajectory parameters of plane  aero naval missile.  
Velocity distance of the open cluster M11 期刊论文  OAI收割
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2007, 卷号: 7, 期号: 4, 页码: 572-578
作者:  
Zhao, Jun-Liang;  Chen, Li
收藏  |  浏览/下载:34/0  |  提交时间:2010/11/08