Short-distance large-height-difference environment network RTK method
The invention discloses a short-distance large-height-difference environment network RTK (Real Time Kinematic) method. The method comprises the following steps: 1, forming a base line, and forming a double-difference observation equation; 2, ambiguity is fixed, and inter-station troposphere delay is...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a short-distance large-height-difference environment network RTK (Real Time Kinematic) method. The method comprises the following steps: 1, forming a base line, and forming a double-difference observation equation; 2, ambiguity is fixed, and inter-station troposphere delay is calculated; 3, fitting or correcting the troposphere delay elevation reduction model; 4, troposphere delay at the virtual reference station is calculated; 5, generating a virtual reference station based on the observation value of the base station; and sending the coordinates of the virtual reference station and the observation value to the moving station, and carrying out RTK positioning by the moving station. According to the method, the problem that the network RTK precision is poor or the network RTK cannot be used under the large height difference is solved, and the defect that a traditional method does not consider the large height difference and only performs fitting in the horizontal direction or simple li |
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