Elimination of cyclic phase slips of single-frequency kinematic GNSS observations

A. A. Zhalilo; I. V. Ditskiy

doi:10.3103/S0735272712070059

Authors

A. A. Zhalilo Kharkiv National University of Radioelectronics, Ukraine https://orcid.org/0000-0002-6735-9662
I. V. Ditskiy Kharkiv National University of Radioelectronics, Ukraine

DOI:

https://doi.org/10.3103/S0735272712070059

Keywords:

cyclic phase slip, GPS, GNSS, constellation, continuity restoration, single-frequency observations, double-frequency observations, phase observations, code observations, phase ambiguity multistage processing

Abstract

The results of development of a new method for the estimation and elimination of cyclic phase slips of single-frequency kinematic GNSS observations have been presented. The investigations and verification of the proposed method were performed using simulations and real GPS observations. Conditions of the continuity restoration of phase observations were determined; the specified conditions ensure a reliable elimination of cyclic phase slips under conditions of the partial and total loss of observations on intervals of up to 30 s. The possibilities of enhancing the reliability of elimination of phase slips were investigated using a group of increments of observations obtained under the free running and differential modes of coordinate determinations. It was shown that the reliability of solving the problem in question was critically dependent on the use of smoothed code observations. The smoothing of code observations makes it possible to achieve a much larger effect as compared with an attempt of increasing the number of satellites in the current constellation.

References

B. Hofmann-Wellenhof, Herbert Lichtenegger, and J. Collins, Global Positioning System: Theory and Practice (Springer-Verlag, 1993).

C. Rizos, Principles and Practice of GPS Surveying (School of Engineering, The University of New South Wales, Australia, 1999).

A. A. Zhalilo, “Detection and Elimination of Cyclic Phase Slips of Single-Frequency and Double-Frequency GPS/GNSS Observations. New Universal Method and Algorithms,” in Proc. of XIV Saint-Petersburg Int. Conf. “Integrated Navigation Systems,” 28–30 May, 2007, Saint-Petersburg, Russia (Saint-Petersburg, 2007), pp. 293–302.

A. Zhalilo and D. Shelkovenkov, “Features and Service Performance of Multifunctional Software Toolkit “OCTAVA” for Processing and Analysis of GPS/GNSS Observations,” in Proc. of Conf. GEOS 2007, 1–2 March, 2007, Prague, Czech Republic (Prague, 2007), pp. 102–110.

A. A. Zhalilo and I. V. Ditskiy, “New Effective Method of Eliminating Cyclic Phase Slips during Double-Frequency Kinematic GNSS Observations,” Izv. Vyssh. Uchebn. Zaved., Radioelektron. 54(8), 18 (2011) [Radioelectron. Commun. Syst. 54(8), 415 (2011)].

J. T. Wu, S. C. Wu, G. A. Hajj, W. I. Bertiger, and S. M. Lichten, “Effects of Antenna Orientation on GPS Carrier Phase,” Man. Geodetica 18, 91 (1993).

V. M. Kondratyuk and A. A. Zhelanov, “High Precision Positioning of Moving Objects by Using an Upgraded Method of Smoothing the Coded Differential GNSS Observations,” in Collection of Sci. Papers of 4th Int. Radioelectronics Forum “Applied Radioelectronics. The State and Development Prospects” (2011), Vol. 1, Part 2, pp. 79–82.

V. N. Kharisov, A. I. Perov, R. V. Bakit’ko, E. N. Boldenkov, et al., GLONASS: Principles of Design and Operation, 4th ed. (Radiotekhnika, Moscow, 2010) [in Russian].