Kinematic GPS Precise Point Positioning for Sea Level Monitoring with GPS Buoy

Wu Chen, Congwei Hu, Zhihua Li, Yongqi Chen, Xiaoli Ding, Shan Gao, Shengyue Ji

Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong.

DOI:                 

Abstract

In this paper, the basic precise point positioning model has been reviewed. A recursive least square algorithm that separates the position coordinates and other parameters, such as ambiguities and tropospheric delays, is proposed for kinematic PPP applications. A test was carried out to test the method proposed in this paper, which made use of a GPS buoy equipped with a pressure and a tilt meter to monitor the sea level in Hong Kong. The initial results from kinematic PPP positioning compared with conventional kinematic positioning methods shows th

Keywords

kinematic GPS; precise point positioning; sea level; GPS buoy

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Han SC, Kwon JH, Jekeli C (2001): Accurate Absolute GPS Positioning through Satellite Clock Error Estimation, Journal of Geodesy, 77: 33 - 43.
[2]	Héroux P.; Kouba J (2001): GPS Precise Point Positioning Using IGS Orbit Products. Physics and Chemistry of the Earth (A), Vol. 26 No. 6 – 8: 573 – 578.
[3]	Hofmann-Wellenhof B.; Lichtenegger H.; Collins J. (2003): GPS Theory and Practice (5th Ed.). Springer, Wien New York.
[4]	Moore T.; Zhang K.; Close G.; Moore R. (2000): Real-Time River Level Monitoring Using GPS Heighting. GPS Solution, Vol. 4, Number 2: 63 - 67.
[5]	Key K.W.; Parke M.E.; Norn G.H. (1998): Mapping the Sea Surface Using a GPS Buoy. Marine Geodesy, 21: 67 –79.
[6]	Niell; A. E. (1996): Global Mapping Functions for the Atmosphere Delay at Radio Wavelengths. Journal of Geophysical Research, 101(B2): 3227 - 3246.
[7]	Rocken C.; Kelecy T.M.; Norn G.H.; Young L.E.; Purcell G.H.; Jr.; Wolf S.K. (1990): Measuring Precise Sea Level From a Buoy Using the Global Positioning System. Geophysical Research Letters, 17: 2145 – 2148.
[8]	Zumberge JF; Watkins MM; Web FH (1998): Characters and Applications of Precise GPS Clock Solutions of Every 30 Seconds. Journal of the Institute of Navigation, 44(4): 449– 456.
[9]	Zumberge JF; Heflin MB; Jefferson DC; Watkins MM; Webb FH (1997): Precise Point Processing for the Efficient and Robust Analysis of GPS Data from Large Networks. Journal of Geophysical Research, 102 (B3): 5005 - 5017.