New developments on estimating satellite interfrequency bias for SVN49

作者：Komjathy Attila^*; Wilson Brian D; Mannucci Anthony J

来源：GPS Solutions, 2011, 15(3): 233-238.

DOI：10.1007/s10291-010-0185-5

• Ionosphere
• Satellite interfrequency bias
• SVN49
• Global ionospheric mapping (GIM)

In order to estimating satellite interfrequency bias T-gd for the anomalously behaving SVN49, a modified JPL GIM software suite is presented. This research assumed that the single-frequency user will not need to perform any modification in the receiver software and will not need any detailed knowledge of the satellite anomaly using the code observable. We performed a point positioning analysis and investigated the range residuals for SVN49. It was discovered that the new satellite bias estimate resulted in near zero mean residuals with the shape of P2-P1 and L1-L2 observables being consistent with shapes from other satellites. Also, computed is a 10-day average of the estimated satellite interfrequency bias T-gd, which turned out to be -19.13 ns.

• 出版日期2011-7