Un-differenced real-time kinematic (URTK) fuzziness rapid fixing method with additional atmosphere information dynamic constraint
A technology of dynamic constraints and fixed methods, applied in the field of global navigation satellite systems, can solve the problems of not effectively considering the position relationship between the user and the selected reference station, the wavelength of the observation value, etc.
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[0067] A specific embodiment of the present invention is as follows:
[0068] Step 1: Use the regional enhancement information of the reference station in the area where the URTK user is located the previous day or at the current moment to predict the residual error after model refinement.
[0069] In this specific embodiment, the area enhancement information of the four reference stations of the previous day or the current moment is selected for forecasting.
[0070] This step further includes sub-steps:
[0071] Step 1.1: Select one reference station as the detection station, and the other three reference stations will be referred to as reference stations for short.
[0072] Preferably, the detection station should be located in the triangle surrounded by the three reference stations.
[0073] Step 1.2: Calculate the residual atmospheric error scaling factor n at feature point i i .
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