|
|
- 2018
基于星地/星间联合观测的时间比对方法
|
Abstract:
星间观测实现了移动卫星的连续跟踪，是提升卫星钟时间比对精度的重要手段。研究了基于星地/星间联合观测时间比对技术；推导了星地/星间时间同步比对模型；给出了星间钟差到星地钟差的一致性归算方法。理论上加入星间观测移动卫星钟差预报精度能大幅提升，但异质观测设备导致钟差观测序列不连续，影响了卫星钟预报精度。研究了小幅钟差跳变的探测与补偿技术，提出了基于传统粗差探测与相邻历元组差相结合的钟差跳变探测方法，有效消除了异质观测设备带来的钟差不一致性，提升了卫星钟预报精度。最后利用实测与仿真数据验证了所提出的理论和方法的正确性和有效性
| [1] | Pratap Misra, Per Enge. Global Positioning System, Signals, Measurements and Performance (Second Edition)[M]. Norwood:Ganga-Jamuna Press, 2006 |
| [2] | Shuai Ping, Qu Guangji. Time Synchronization Techniques of the Autonomous Navigation of Navigation Constellation[J]. <em>Jounal of Astronautics</em>, 2005, 26(6):768-772(帅平,曲广吉.导航星座自主导航的时间同步技术[[J].宇航学报.2005,26(6):768-772) |
| [3] | Song Xiaoyong, Jia xiaolin, Mao Yue. Two Steps Time Synchronizing Crosslink Ranging Method for AutoNav with Measurement[J]. <em>Geomatics and information Science of Wuhan University</em>, 2009,34(11):1297-1300(宋小勇, 贾小林, 毛悦. 基于星间测距的两步滤波时间同步方法[J]. 武汉大学学报·信息科学版, 2009,34(11):1297-1300) |
| [4] | Huang Feijiang, Lu Xiaochun, Wu Haitao, et al. An Algorithm of Dynamic Two-way Time Transfer Based on Intersatelite Range Variation[J]. <em>Geomatics and information Science of Wuhan University,</em> 2010,35(1):13-16(黄飞江,卢晓春, 吴海涛,等.基于星间距离变化的动态双向时间同步算法[J].武汉大学学报·信息科学版,2010,35(1):13-16) |
| [5] | Zhu Jun. Research on Orbit Determination and Time Synchronizing of Navigation Satellite Based on Crosslinks[D]. Changsha:National University of Defense Technology,2011(朱俊,基于星间链路的导航卫星轨道确定及时间同步方法研究[D].长沙:国防科学技术大学,2011) |
| [6] | Liu Xiaogang. Study on High Precision Time Synchronization Method in Satellite Navigation and Positioning System[D]. Zhenzhou:Information Engineering University, 2008(刘晓刚. 卫星导航定位系统高精度时间同步算法研究[D]. 郑州:信息工程大学,2008) |
| [7] | Liu Xiaogang, Wu Xiaoping, Tian Yanfeng, et al. Study on Automic Prediction of Time Based on Interpolation Model with Tchebytchev PoLynomiais[J]. <em>Journal of Geodesy and Geodynamics</em>, 2010, 2:77-82(刘晓刚,吴晓平,田颜锋,等.利用切比雪夫多项式模型进行时间预报的研究[J].大地测量与地球动力学,2010(2):77-82) |
| [8] | Guo H R, Yang Y X, He H B, et al. Numerical Prediction Methods for Clock Deviation Based on Two-way Satellite Time and Frequency Transfer Data[J]. <em>Geo-spatial Information Science</em>, 2008, 11(2):143-147 |
