Impact Analysis of Differential Code Biases of GPS Satellites on the Kinematic Precise Point Positioning
When the IGS precise orbits and clocks are used to carry on kinematic PPP, it is necessary to make DCB correction according to different types of GPS receivers. Currently, it is well known that DCB has little influence on static PPP, but there is still much work to do about the influence of DCB on kinematic PPP. This paper has a thorough evaluation on that and compares the kinematic results with the P1P2 type receiver by processing observation data from 20 IGS tracking stations. The results show that the accuracy of kinematic PPP of the NONCC receiver reporting C1 and P2 types has improved after DCB correction, but is still lower than that of the NONCC receiver reporting P1 and P2 types, especially in the zenith direction and the difference can reach more than 2 cm. The results indicate that there is a need to improve the accuracy of DCB published by IGS analysis center.
KeywordsGPS Kinematic PPP DCB
- 1.Zhang B, Wu X, Yu Z, Zhang Z (2009) Precision analysis of GPS-based precise point positioning in aerial photogrammetry. Sci Surv Mapp 34(5):5–7Google Scholar
- 2.Fan S, Liu Y, Zhenjie W (2012) GPS co-seismic and post-seismic response to the 3·11 massive earthquake in Japan. Geomatics Inf Sci Wuhan Univ 37(2):191–194Google Scholar
- 4.Leandro RF, Langley RB, Santos MC (2007) Estimation of P2-C2 bias by means of precise point positiong. In: Proceedings of the 63rd annual meeting of the institute of navigation, pp 225–231Google Scholar
- 6.Huang J, Wang P, Ruan R, Lin Y, Zhang Y (2010) Study on precise point positioning accuracy affected by DCB. J Geodesy Geodyn 30(3):110–117Google Scholar
- 7.Jim R (2014) [IGSMAIL-3737]: C1/P1 biases for leica and trimble 5700 receivers [EB/OL]. [2002-02-13]. http://igscb.jpl.nasa.gov/mail/igsmail/2002. Accessed 20 Mar 2014