An improved ephemeris algorithm of BeiDou GEO satellite for user

被引：0
作者：
机构：
[1] School of Information and Electronics, Beijing Institute of Technology
来源：
Zeng, D. (dazhi@bit.edu.cn) | 1600年 / National University of Defense Technology卷 / 36期
关键词：
BeiDou satellite navigation system; Broadcast ephemeris fitting; GEO satellite; The second class of non-singularity orbit elements;
D O I：
10.11887/j.cn.201401015
中图分类号：
学科分类号：
摘要：
The orbital inclination of 5° coordinate rotation is required in the GEO ephemeris algorithm for users. Aimed at this step, an improved method that the BeiDou GEO satellite position is calculated directly by using the classical broadcast ephemeris algorithm for user was presented, and meanwhile the corresponding broadcast ephemeris fitting algorithm based on the second class of non-singularity orbit elements was given. In this method, the classical orbit elements were replaced by the second class of non-singular orbit elements, which solves the problem that the coefficient matrix is non-positive in the process of the classical broadcast ephemeris fitting algorithm because of the small inclination angle. This avoids the orbital inclination of 5° coordinate rotation process, decreases the calculating steps time and enhances the GEO ephemeris algorithmic efficiency. The simulation results show that the accuracy of the improved method is as much as the original algorithm in the satellite orbit fitting process and is reduced slightly in the satellite orbit extrapolation process. But it can still meet the requirement of navigation and position for users. Finally, the validity of the improved algorithm is verified by using orbital data of the actual BeDou GEO broadcast ephemeris.
引用
收藏
页码：82 / 87
页数：5
相关论文
共 19 条
  • [1] Beidou navigation satellite system signal in space interface control document, (2012)
  • [2] Global position system wing (GPSW) systems engineering & integration interface specification: IS-GPS-200 (version E), (2010)
  • [3] Mao J., Study of navigation message design technology in satellite navigation system, (2012)
  • [4] Gao Y., Xi X., Wang W., An improved fitting algorithm design of broad-cast ephemeris for GEO satellite, Journal of National University of Defense Technology, 29, 5, pp. 18-22, (2007)
  • [5] Ruan R., Jia X., Wu X., Et al., Broadcast ephemeris parameters fitting for GEO satellite based on coordinate transformation, Acta Geodaetica et Cartographica Sinica, 40, pp. 145-150, (2011)
  • [6] He F., Wang G., Liu L., Et al., Ephemeris fitting and experiments analysis of GEO satellite, Acta Geodaetica et Cartogra-phica Sinica, 40, pp. 52-58, (2011)
  • [7] Liu L., Orbit Theory of Spacecraft, pp. 414-445, (2002)
  • [8] Cui X., Yang Y., Wu X., Influence of the orbital plane rotation angle on GEO satellite broadcast ephemeris parameter fitting, Journal of Astronautics, 33, 5, pp. 590-596, (2012)
  • [9] Liu G., Liao Y., Wen Y., Research on the fitting algorithm of broadcast ephemeris parameter, Journal of National University of Defense Technology, 30, 3, pp. 100-104, (2008)
  • [10] Huang H., Research on the broadcast ephemeris parameters model and its fitting algorithm, (2012)
12