期刊文献+

IGS卫星钟差产品采样间隔对PPP收敛速度的影响分析 被引量:4

Impacts of Sampling Rates of IGS Satellite Clock on Convergence of Precise Point Positioning
原文传递
导出
摘要 比较和分析了使用IGS5min、IGS30s以及CODE30s、CODE5s4种精密卫星钟差产品对精密单点定位(precise point positioning,PPP)精度及其收敛性的影响。在达到同等精度水平时,使用30s和5s采样率的钟差产品,其收敛时间要明显短于5min的精密钟差产品。 Both static and kinematic tests were investigated by using IGS 5 min,IGS 30 s,CODE 30 s and CODE 5 s-interval precise satellite clock product in precise point positioning (PPP) solution.Test results show that the sample rate of IGS satellite clock has little effect on the static PPP solution.Using a higher sampling rate can achieve high precision in a short time but they can all obtain the same precision nearly with the time going.While in the kinematic PPP,the sample rate of satellite clock has a significant impact on the PPP solution.The higher the interval of satellite clock is used,the better accuracy it can achieve.The accuracy of kinematic PPP achieved by using 30 s-interval precise satellite clock is improved by nearly 40%-50% in the plane and 20%-30% in the vertical direction with respect to the solution by using 5 min-interval precise satellite clock.While using 5 s and 30 s-interval satellite clock almost produce the same accuracy of kinematic solution.When achieve the same precision,the time to get convergence by using 30 s and 5 s-interval clocks is shorter than that of using 5 min-interval clock significantly.
出处 《武汉大学学报(信息科学版)》 EI CSCD 北大核心 2010年第6期683-686,共4页 Geomatics and Information Science of Wuhan University
基金 国家自然科学基金资助项目(40874017) 国家863计划资助项目(2006AA12Z325) 国家创新研究群体科学基金资助项目(40721001)
关键词 精密卫星钟差 采样率 精密单点定位 精度 收敛性 precise satellite clock error sampling rate PPP accuracy convergence
  • 相关文献

参考文献6

二级参考文献22

  • 1李征航,魏二虎,黄劲松,罗佳.关于卫星应用专业设置及其定位的若干思考[J].测绘信息与工程,2005,30(2):47-49. 被引量:8
  • 2Zumberge J F,Heflin M B,Jefferson D C,et al.Precise Point Positioning for the Efficient and Robust Analysis of GPS Data from Large Networks.Journal of Geophysical Research,1997,102(B3):5 005~5 017
  • 3Zumberge J F,Watkins M M,Webb F H.Characteristics and Application of Precise GPS Clock Solution Every 30 Seconds.Navigation,1998,44(4):449~456
  • 4Hatch R.Satellite Navigation Accuracy: Past,Present and Future.Proceeding of the 8th GNSS Workshop,Korea,2001
  • 5Heroux P,Kouba J,Collins P,et al.GPS Carrier-phase Point Positioning with Precise Orbit Products.The International Symposium on Kinematic Systems in Geodesy,Geomatics and Navigation,Calgary,2001
  • 6Blewitt G.An Automatic Editing Algorithm for GPS Data.Geophysical Research Letters,1990,17(3):199~202
  • 7马颂得 张正友.计算机视觉-计算理论与算法基础[M].北京:科学出版社,1998..
  • 8Harris C, Stephens M. A Combined Corner and Edge Detector[C]. The 4th Alvey Vision Conference. Manchester, 1988.
  • 9Zhang Zuxun, Zhang Jianqing. Wu Xiaoliang. et al.Global Image Matching with Relaxation Method[C]. The International Colloquium on Phologrammetry, Remote Sensing and Geographic Information Systems. Wuhan. China. 1992.
  • 10Zhang Zuxun, Derche R, Faugeras O, et al. A Robust Technique for Matching Two Uncalibrated Images Through the Recovery of the Unknown Epipolar Geometry[J]. Artificial Intelligence, 1995, 78(1 2): 87-119.

共引文献399

同被引文献40

引证文献4

二级引证文献11

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部