机构

• 上海天文台 [2]
• 国家空间科学中心 [1]
• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]
• 国家天文台 [1]
• 深海科学与工程研究所 [1]
• 更多

采集方式

• OAI收割 [7]

内容类型

• 期刊论文 [6]
• 会议论文 [1]

发表日期

• 2020 [1]
• 2014 [1]
• 2013 [3]
• 2010 [1]
• 1998 [1]

学科主题

• 空间环境 [1]

筛选

浏览/检索结果: 共7条，第1-7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 An Evaluation Algorithm for the Interoperability of Global Navigation Satellite Systems 期刊论文  OAI收割 TRAITEMENT DU SIGNAL, 2020, 卷号: 37, 期号: 1, 页码: 137-144 作者:  Chen, Xiaobo;  Zhao, Lin;  Hao, Yong;  Yu, Lianhua;  Lv, Chengcai   |  收藏  |  浏览/下载：37/0  |  提交时间：2020/05/19 global navigation satellite systems (GNSSs)  Compass/BeiDou Navigation Satellite System (Compass)  interoperability  evaluation  service performance   Evaluation of COMPASS ionospheric grid 期刊论文  OAI收割 GPS SOLUTIONS, 2014, 卷号: 18, 期号: 4, 页码: 639-649 作者:  Wu, Xiaoli;  Zhou, Jianhua;  Tang, Bo;  Cao, Yueling;  Fan, Jiachen 收藏  |  浏览/下载：41/0  |  提交时间：2015/05/11 Satellite-based augmentation system (SBAS)  Ionospheric grid point (IGP)  COMPASS  Wide-area augmentation system (WAAS)  Accuracy  Availability   Simulation of number and distribution of Compass occultation events 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 8, 页码: 2522-2530 作者:  Wang Xian-Yi;  Sun Yue-Qiang;  Bai Wei-Hua;  Du Qi-Fei;  Wang Dong-Wei 收藏  |  浏览/下载：24/0  |  提交时间：2014/04/30 Compass navigation system  Low Earth Orbit  Occultation  Orbit parameters  Simulation   Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2013, 卷号: 51, 期号: 12, 页码: 2277-2284 作者:  Li, Haojun;  Chen, Yanling;  Wu, Bin;  Hu, Xiaogong;  He, Feng 收藏  |  浏览/下载：46/0  |  提交时间：2015/08/03 Triple-frequency signals  Precise Point Positioning  Inter-frequency clock bias  COMPASS system   Analysis of RDSS positioning accuracy based on RNSS wide area differential technique 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2013, 卷号: 56, 期号: 10, 页码: 1995 作者:  Xing Nan;  Su RanRan;  Zhou JianHua;  Hu XiaoGong;  Gong XiuQiang   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/12/06 ALGORITHM  COMPASS  BeiDou Navigation Satellite System (BDS)  RDSS  RNSS  wide-area differential technique   Embedded system of time uniform based on DSP (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:  Li N.;  Liu C.-X.;  Liu C.-X.;  Chen J.;  Guo L.-H. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 We introduced a design method of DSP-based System of time uniform  which combine the GPS and the Compass to calibrate the time. The system can use UTC (Coordinated Universal Time) of the GPS or the Compass for time base  to generate absolute time and different frequency of synchronous signals. We used DSP (Digital Signal Processor) to calculate the satellite information which includes the UTC time. After getting the UCT time information  put it into the CPLD (Complex Programmable Logic Device) for correction of time delay and serialization to output. Meanwhile  we divided 1PPS (one-pulse-per-second) signal of the GPS and the Compass into 20Hz  50Hz  and 800Hz synchronous signal. And we analyzed the precision of time and frequency. To conclude  the uncertainty of system absolute time is less than 100ns  the uncertainty of system synchronous signals is less than 20ns. This system is easy and flexible for use  stable and reliable in performance. 2010 IEEE.   Solving geometric constraint systems. II. A symbolic approach and decision of rc-constructibility 期刊论文  OAI收割 COMPUTER-AIDED DESIGN, 1998, 卷号: 30, 期号: 2, 页码: 115-122 作者:  Gao, XS;  Chou, SC   |  收藏  |  浏览/下载：13/0  |  提交时间：2018/07/30 geometric constraint system solving  symbolic computation  decision of ruler and compass construction  intelligent CAD