Troposphere delay and multi-path error separation method and system of large-height-difference baseline
A multi-path error and tropospheric delay technology, applied in radio wave measurement systems, satellite radio beacon positioning systems, instruments, etc., can solve the problem of difficult to achieve millimeter to sub-millimeter high-precision deformation monitoring targets, unable to independently model and correct, mutual separation, etc.
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[0026] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] Under the narrow geographical conditions of high mountains, due to the large difference in elevation at both ends of the station, the tropospheric delay error cannot be completely eliminated by the traditional double-difference method, and there are serious tropospheric delay errors in the residuals of GNSS double-difference observations. In addition, for high-precision GNSS positioning, the impact of cm-level multipath errors cannot be ignored. However, both the multipath error and the tropospheric delay error are altitude-related errors, that is, the low-elevation arc section has a greater influence, while the high-elevation angle arc section has a smaller impact, and the two are difficult to separate from each other. In the embodiment of the present invention, a method for separating GNSS tropospheric delay error an...
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