article · 2024
Integer phase ambiguity resolution method for absolute GLONASS observations
Cited by 0Abstract and details only
Abstract
With the help of modern navigation satellite systems it is possible to determine the coordinates of points with millimeter accuracy due to the precision measurement of the carrier phase of the navigation radio signal. However, in the course of achieving this accuracy, a nontrivial problem of resolving the integer phase ambiguity arises. The most difficult part is to determine the integer number of wavelengths between the phase centers of the transmitting antenna of the navigation satellite and the receiving antenna. An exact solution to this problem using the integer least squares method, although it exists in theory, is not applicable in practice due to the prohibitively high computational complexity. In this regard, a number of authors have developed various suboptimal methods for resolving integer phase ambiguity, which allow solving a problem with varying degrees of uncertainty. In this case, the problem can be considered satisfactorily solved for relative coordinate determinations from GPS (global positioning system) and GLONASS (global navigation satellite system) observations, as well as for absolute coordinate determinations from GPS. As for the absolute determinations of coordinates from GLONASS observations, the situation is complicated by the fact that GLONASS, unlike GPS, uses frequency-division multiple access. In other words, if all GPS navigation spacecraft broadcast navigation radio signals on a single frequency, then GLONASS satellites broadcast on different frequencies. This paper generalizes one of the modern and effective methods for resolving integer ambiguity for GPS observations, MLAMBDA, to the GLONASS system. The ultimate goal of the work is an independent algorithm for absolute determination of coordinates with millimeter accuracy using the GLONASS system. In the course of the work, the MLAMBDA formalism was generalized to navigation systems with frequency division of access, and the first results of independent coordinate determinations from GLONASS observations in absolute mode were obtained.
Cite this paper
Starikov, K., & Петров, С. Н. (2024). Integer phase ambiguity resolution method for absolute GLONASS observations. https://doi.org/10.26119/vak2024.156
Starikov, Kirill, and С. Н. Петров. “Integer phase ambiguity resolution method for absolute GLONASS observations.” 2024, pp. 839–42, https://doi.org/10.26119/vak2024.156.
Starikov, Kirill, and С. Н. Петров. 2024. “Integer phase ambiguity resolution method for absolute GLONASS observations.” https://doi.org/10.26119/vak2024.156.
Starikov, K. and Петров, С.Н. (2024) ‘Integer phase ambiguity resolution method for absolute GLONASS observations’. Available at: https://doi.org/10.26119/vak2024.156.
@article{starikov2024integer,
title = {{Integer phase ambiguity resolution method for absolute GLONASS observations}},
author = {Starikov, Kirill and Петров, С. Н.},
pages = {839--842},
year = {2024},
doi = {10.26119/vak2024.156}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.