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Volume 24 Issue 3
Mar.  1998
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Journal of Beijing University of Aeronautics and Astronautics  > 1998  >  24(3): 263-266.
Chang Qing, Liu Zhongkan, Zhang Qishanet al. GPS Positioning Algorithm Based on Least Square Recurrence Estimate[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(3): 263-266. (in Chinese)
Citation: Chang Qing, Liu Zhongkan, Zhang Qishanet al. GPS Positioning Algorithm Based on Least Square Recurrence Estimate[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(3): 263-266. (in Chinese)
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GPS Positioning Algorithm Based on Least Square Recurrence Estimate

  • Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering

  • Received Date: 20 Jan 1997
  • Publish Date: 31 Mar 1998
    Abstract
  • This paper proves,in theory,that GDOP decreases as the number of satellite increases.Then the recurrence algorithm of GDOP and positioning solution is proposed based on the existing positioning software.This algorithm chooses the fifth satellite which enables GDOP5 to be minimized from the surplus visible satellites and make use of the positioning information provided by this satellite to correct the four-satellite positioning solution.Finally,the method for choosing the fifth satellite is given.The purpose of the algorithm is to exchange the least amount calculation for the effective improvement of the positioning precision.

     

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  • 1 .刘基余,李征航,王跃虎,等.全球定位系统原理及其应用.北京:测绘出版社,1993 2. 周忠模,易军杰.GPS卫星测量原理与应用.北京:测绘出版社,1992 3. 柳重堪.信号处理的数学方法.南京:东南大学出版社,1992 4. 宗振铎,赵永忠.GPS系统星座高度和方位对系统定位精度的影响.导航,1985(4):1~12 5. Masahiko Kihara,Tsuyoshi Okada.GPS卫星选择方法与精度.导航,1985(2):9~18
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