ZHANG Xiaohong, LI Pan, ZUO Xiang. Kinematic Precise Orbit Determination Based on Ambiguity-Fixed PPP[J]. Geomatics and Information Science of Wuhan University, 2013, 38(9): 1009-1013.
Citation: ZHANG Xiaohong, LI Pan, ZUO Xiang. Kinematic Precise Orbit Determination Based on Ambiguity-Fixed PPP[J]. Geomatics and Information Science of Wuhan University, 2013, 38(9): 1009-1013.

Kinematic Precise Orbit Determination Based on Ambiguity-Fixed PPP

Funds: 国家自然科学基金资助项目(41074024,41204030);国家自然科学基金创新研究群体科学基金资助项目(41021061);中央高校基本科研业务费专项资金资助(2012214020207);中央高校基本科研经费资助项目
More Information
  • Received Date: April 17, 2013
  • Revised Date: April 17, 2013
  • Published Date: September 04, 2013
  • With the development of space-borne GPS technologies and IGS precise orbit and clock products,precise orbit determination(POD) of Low Earth Orbiters(LEOs) based on PPP technology has become a hot issue.At present,an accuracy of 3~5 cm in Radial(R),Along-track(T),Cross-track(N) components can be achieved with conventional PPP.However,the results are less precise or reliable than the double-differenced fixed solution due to the ambiguity-float solution in traditional PPP.In order to further improve the precision and reliability of POD with PPP,daily observations from all IGS tracking stations through day 2 to 7 in 2012 were used to estimate the wide and narrow-lane fractional cycle bias(FCB) of all satellites for PPP integer ambiguity resolution.The POD of the two GRACE satellites were respectively compared with GFZ’s post precise orbit and K-band measurements for the analysis of the inner and external conformities.As compared to GFZ,the daily orbital accuracy of the ambiguity-fixed solution in this work is about 2~3 cm in R direction,better than 2 cm in T direction and better than 2 cm in N direction for GRACE-A,an improvement of 19%,30% and 50% respectively when compared with that of the float solution.The POD precision for GRACE-B are 2-3 cm,2 cm and 1-2 cm in R,N,T directions for the fixed solution,respectively.The accuracy improvement in the fixed solution for GARCE-B is nearly equivalent with that for GRACE-A.For K-band cases,the mean STD error of KBR residual is about 16.4 mm for the fixed solution,and 22.6 mm for the float solution.These results show that PPP with ambiguity-fixed can greatly improve POD precision of LEO satellites and provide more reliable orbital service.
  • [1]
    李星星张小红,李盼,. 固定非差整数模糊度的PPP快速精密定位定轨[J]. 地球物理学报. 2012(03)[2] 张小红何锡扬,李星星,. TriP软件非差几何法精密定轨精度分析[J]. 武汉大学学报(信息科学版). 2010(11)[3] 张守建李建成,邹贤才,金涛勇,. GRACE卫星非差运动学精密定轨分析[J]. 武汉大学学报(信息科学版). 2010(06)[4] 李建成,张守建,邹贤才,姜卫平,. GRACE卫星非差运动学厘米级定轨[J]. 科学通报. 2009(16)
  • Related Articles

    [1]WANG Jiachen, LIU Genyou, GUO Aizhi, CHEN Runjing. Antenna Phase Wind-up Error Analysis of GNSS Relative Positioning Double-Difference Model[J]. Geomatics and Information Science of Wuhan University, 2020, 45(1): 38-45, 104. DOI: 10.13203/j.whugis20190112
    [2]TANG Xinming, CHEN Jiyi, LI Guoyuan, GAO Xiaoming, ZHANG Wenjun. Error Analysis and Preliminary Pointing Angle Calibration of Laser Altimeter on Ziyuan-3 02 Satellite[J]. Geomatics and Information Science of Wuhan University, 2018, 43(11): 1611-1619. DOI: 10.13203/j.whugis20170058
    [3]CHEN Dezhong, YE Shirong, LIU Yanyan, LIU Zheng. Applied Analysis of GPS Multipath Errors Based on Observation Domain[J]. Geomatics and Information Science of Wuhan University, 2014, 39(2): 147-151. DOI: 10.13203/j.whugis20120719
    [4]ZHAO Jianhu, KE Hao, ZHAGN Hongmei. Comprehensive Detection and Repair Method for Long-Period Tidal Gauge Observation Errors[J]. Geomatics and Information Science of Wuhan University, 2011, 36(12): 1490-1494.
    [5]FENG Xin, WANG Hua, TAN Shusen. Multipath Performance Analysis for Navigation Signals in Different Pro-correlation Bandwidth and Correlator Spacing[J]. Geomatics and Information Science of Wuhan University, 2011, 36(10): 1191-1194.
    [6]WANG Yaoge, WANG Zhiwei, ZHU Changqing. Analysis of Digital Terrain Error Based on Spatial Autocorrelation[J]. Geomatics and Information Science of Wuhan University, 2008, 33(12): 1259-1262.
    [7]TAO Benzao, YAO Yibin, SHI Chuang. Distinguishability of Outlier Based on Correlative Analysis[J]. Geomatics and Information Science of Wuhan University, 2004, 29(10): 881-884.
    [8]LI Zhenhong, LIU Jingnan, XU Caijun. Error Analysis in InSAR Data Processing[J]. Geomatics and Information Science of Wuhan University, 2004, 29(1): 72-76.
    [9]Zhu Qing, Li Deren. Error Analysis and Processing of Multibeam Soundings[J]. Geomatics and Information Science of Wuhan University, 1998, 23(1): 1-4,46.
    [10]Huang Jiana, Wu Junchang. Reliability Analysis and Gross Error Detection of Traverse Network[J]. Geomatics and Information Science of Wuhan University, 1997, 22(1): 51-54.

Catalog

    Article views (1297) PDF downloads (866) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return