Abstract:

To deal with the problem of location estimation in satellite observation repetitions, a new position fusion algorithm is proposed. First, the necessary of the weighted fusion method is analyzed, and the distribution of location is biased that is proved. Then a loci selecting algorithm is proposed based on the distribution of location error. Two new methods of position fusion algorithm are given by using the observation equation and the variance distribution of location error, which make the variance arrive the minimum. Finally, the emulational experiment shows that the location precision can be improved by using the proposed method.