Beidou continuous operation reference station ambiguity calculation method, system and device

Abstract

The invention discloses a Beidou continuous operation reference station ambiguity calculation method, system and device. According to the embodiment of the invention, the method comprises steps: obtaining a first observation equation and a second observation equation of a carrier phase; based on a linear combination of the first observation equation and the second observation equation, obtaining an observation value without ionosphere influence and an observation value of the ionosphere; and obtaining the wide lane ambiguity of the Beidou continuous operation reference station based on the observation value without the ionosphere influence and the observation value of the ionosphere. According to the method, the wide lane ambiguity fixing speed can be effectively improved, so that the RTK resolving speed is improved; in some special application scenes, a dangerous scene caused by a low fixed rate can be effectively avoided, and surveying and mapping operation efficiency can be improved, so that the technical problems are solved that in the prior art, resolving processing of differential correction data has certain limitation on data scenes of different CROS reference stations, and due to the fact that the load is too large and the processing speed is too low, the solving processing efficiency is relatively low.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a method, system and equipment for fixing the ambiguity of a Beidou continuous operation reference station. Background technique [0002] The ambiguity resolution of the Beidou Continuous Operational Reference Station (CORS) (hereinafter referred to as the CORS baseline) is generally carried out in two steps. First, the wide lane is fixed, and then L1 is fixed. When fixing the wide-lane ambiguity, the MW combination is usually used, and the wide-lane ambiguity is fixed by the method of moving average. The disadvantage of this technique is that the MW combination uses pseudoranges with low precision, which makes its own precision not enough, and it takes a long time to make the ambiguity close to an integer, so as to obtain a fixed solution. [0003] To sum up, the calculation and processing of differential correction data in the prior art has certain limitations for the dat...

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Problems solved by technology

[0004] The invention provides a method, system and equipment for fixing the ambiguity of Beidou continuous operation reference stations, which solves the problem that the differential correction data processing in the prior art has certain limitations for the data scenarios of different CROS reference stations, and due to the overload Large, the processing speed is too slow, resulting in a technical problem of low efficiency in solving and processing

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