Volume 33 Issue 12
Dec.  2007
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Zhang Qiang, Zhang Xiaolin, Li Hongwei, et al. Satellite selection algorithm for combined satellite receivers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(12): 1424-1427. (in Chinese)
Citation: Zhang Qiang, Zhang Xiaolin, Li Hongwei, et al. Satellite selection algorithm for combined satellite receivers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(12): 1424-1427. (in Chinese)

Satellite selection algorithm for combined satellite receivers

  • Received Date: 25 Dec 2006
  • Publish Date: 31 Dec 2007
  • On the basis of the relationship between the determinant of a 5×5 matrix and five satellites- geometry dilution of precision(GDOP), a method of selecting satellites for double constellation combined receiver (e.g. GPS(global position system) and BD2(BeiDou2) combined receiver) was proposed. With this algorithm, firstly several combinations of the maximal determinant were computed, then some optimal satellites from other visible satellites for each combination were chosen according to need, lastly according to the least GDOP principle the final result was selected from previous combinations. Computer simulations indicate that compared to directly using GDOP to select satellites, more than 95% of relative ratio are lower than 5%, while computation burden reduces more than 40% with this method.

     

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