机构

• 新疆天文台 [2]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [2]
• 期刊论文 [1]

发表日期

• 2024 [1]
• 2016 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择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作者升序作者降序 A Study on the Mechanical Characteristics and Wheel-Rail Contact Simulation of a Welded Joint for a Large Radio Telescope Azimuth Track 期刊论文  OAI收割 BUILDINGS, 2024, 卷号: 14, 期号: 5, 页码: 1300 作者:  Chen, Xiao;  Yin, Ruihua;  Yang, Zaitun;  Lan, Huiqing;  Xu, Qian   |  收藏  |  浏览/下载：2/0  |  提交时间：2024/07/02 azimuth track  welded joint  multi-layer and multi-pass  wheel-rail contact  mechanical property  finite element model   Challenges for QTT structure 会议论文  OAI收割 Edinburgh, United kingdom, June 26, 2016 - July 1, 2016 作者:  Xu, Qian;  Wang, Na   |  收藏  |  浏览/下载：25/0  |  提交时间：2018/01/24 Radio Telescope  Electrical Performance  Homology Design  Reflector Panel  Alidade  Azimuth Track  Active Surface  Actuator   Research of error correction of LEO satellite orbit prediction for vehicle-borne tracking and position device (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Wang J.-J.;  Guo L.-H. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 Vehicle-borne tracking and position device is used to track LEO satellite. Because of the absence of the target which might be caused by cloud or zenith blind zone  the forecasting data will be used to acquire the target. While orbit prediction has serious errors  the target is always missed. Meanwhile  in its application to the vehicle-borne tracking and position device  due to the base of instability in the tracking process  it will result in significant difference between predicting data and tracking data  so the target will be not tracked rapidly. We applied tracking data to predict satellite orbits by improving Laplace method  and then corrected the error between Predicted data and actual measured data by interpolation method of Lagrange which improves the accuracy of prediction values. The testing data shows the accuracy of predicted data ranging from 3' to 10" for both azimuth and elevation when extrapolated satellite orbit to 7 seconds time. 2010 IEEE.