Massive IGS data concurrent acquisition with real-time thread pool

doi:10.13474/j.cnki.11-2246.2020.0399

Abstract

Abstract: With the rapid development of global navigation satellite system (GNSS), the international GNSS service (IGS) released high-precision and massive service data. At present, the IGS data have been widely used in GNSS baseline solution, precise point positioning, satellite precise orbit determination, crustal deformation monitoring, earth-ionosphere and geodynamics research.The traditional IGS data download process is tedious, time-consuming and error-prone. How to obtain IGS data quickly and correctly is an urgent concern of current users. This thesis based on file transfer protocol(FTP), realtime thread pool concurrency model and broken-point continuingly transferring algorithms are designed to conduct one-stop classified acquisition test for massive IGS data. Finally, by analyzing and comparing the test result,the optimal method for massive data is obtained.

Key words: IGS, FTP, thread pool, broken-point continuingly transferring, one-stop

CLC Number:

P228

WANG Jianwei, GUO Chunxi, BAI Mu, CHEN Zhao. Massive IGS data concurrent acquisition with real-time thread pool[J]. Bulletin of Surveying and Mapping, 2020, 0(12): 93-96,105.

References

[1] IGS Central Bureau.IGS Technical Report 2016[EB/OL]. (2017-05-06)[2020-01-18].http://www.igs.org.
[2] 王宇谱,吕志平,黄娴,等.MGEX精密星历卫星钟差精度分析[J].测绘工程,2018,27(1):20-23,30.
[3] 陈俊勇.走向新世纪的GPS[J].Aerospace China,2000(10):3-7.
[4] 蒋志浩,张鹏,李毓麟,等.基于新疆GPS联测资料分析青藏高原北缘地壳运动规律[J].武汉大学学报(信息科学版),2003,28(4):417-421.
[5] GAO Y, SHEN X. Improving ambiguity convergence in carrier phase-based precise point positioning[C]//ION GPS 2001. Salt Lake:[s.n.],2001:1532-1539.
[6] 鲁冬冬,胡洪.GPS/BDS精密单点定位算法实现与精度分析[J].测绘通报,2018(S1):13-16,26.
[7] 张睿.BDS精密定轨关键技术研究[J].测绘学报,2018,47(9):1290.
[8] HERRING T A, KING R W, MCCLUSKY S C. GAMIT reference manual(release 10.6)[R].[S.l.]:Depart-ment of Earth,Atmospheric,and Planetary Sciences Massachusetts Institute of Technology, 2015.
[9] 施闯,赵齐乐,楼益栋,等.卫星导航系统综合分析处理软件PANDA及研究进展[J].航天器工程,2009,18(4):64-70.
[10] 赵桂儒,徐平,吴培稚.IGS服务数据下载软件的研制[J].地震地磁观测与研究,2007,28(3):104-109.
[11] 徐园,杨力,陈明剑,等.基于INDY控件的实时精密单点定位星历获取程序设计[J].全球定位系统,2012,37(2):22-25.
[12] 任晓东,刘俊峰,郭博锋,等.IGS数据产品智能化下载软件Ider的设计与实现[J].测绘信息与工程,2012,37(4):43-46.
[13] 朱琳,张慧君,李孝辉.基于LabWindows/CVI的IGS实时数据自动下载软件开发[J].宇航计测技术,2012,32(3):25-30.
[14] 苏芸婕. IGS服务数据的智能获取与工程应用[D].南京:东南大学,2017.
[15] 朱李忠,杨伯宇,王连仲.基于Python实现多源IGS数据快速获取[J].测绘与空间地理信息,2019,42(1):156-158,162.
[16] GURTNER W. RINEX:the receiver independent exchange format version 2.10[EB/OL]. 2011-05-24.ftp://igscb.jpl.nasa.gov/igscb/data/format/210.txt.