Reference for citation: Bakholdin V. S., Lekontsev D. A. Results of experimental processing of phase measurements of the GLONASS system using a non-brute force integer ambiguity resolution algorithm for high-precision absolute location. Journal of Instrument Engineering. 2024. Vol. 67, N 2. P. 162—170 (in Russian). DOI: 10.17586/0021-3454-2024-67-2-162-170.

Abstract. The use of phase measurements in consumer navigation equipment has become the main way to increase the accuracy of navigation determinations. The methods used to resolve the ambiguity of phase measurements require additional information and have a number of known disadvantages. Limitations are identified in the implementation of methods of synthesized wavelength and non-multiple scales for resolving the phase measurements ambiguity in the GLONASS system at the present time. A non-brute force method for resolving the ambiguity of phase measurements in a satellite radio navigation system is proposed, which does not require an excessive number of measurements. A theoretical substantiation of the computational procedures of the multiple scale method are carried out. The proposed method uses mathematical number theory to calculate an integer number of phase cycles. Algorithms are developed to implement this method at two carrier frequencies, and the results of experimental processing of phase measurements of pseudo-range in the GLONASS system are presented. These algorithms can be used both when solving the positioning problem in precision-accuracy positioning mode, and when determining highly dynamic objects orientation of in real time. Based on the considered method of non-multiple scales, algorithms for resolving the ambiguity of phase measurements obtained using foreign satellite navigation systems GPS, Galileo, Beidou can be developed.

Keywords: ambiguity resolution, radio navigation system, non-brute force method, phase measurements, high precision absolute positioning, precise point positioning

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