Low-orbit navigation enhanced real-time positioning method considering satellite orbit error
The invention discloses a low-orbit navigation enhanced real-time positioning method considering a satellite orbit error, and belongs to the field of low-orbit satellite navigation enhanced positioning. According to the method, a two-step method is adopted to weaken the influence of orbit errors, a...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
23.11.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a low-orbit navigation enhanced real-time positioning method considering a satellite orbit error, and belongs to the field of low-orbit satellite navigation enhanced positioning. According to the method, a two-step method is adopted to weaken the influence of orbit errors, a ground receiver is used for receiving observation data and navigation messages, and respective orbits and clock errors of a navigation satellite and a low-orbit satellite are calculated; positioning is carried out according to a conventional mode, orbit error parameters are estimated after positioning convergence, and orbit errors of the low-orbit satellite and the navigation satellite are absorbed by giving a proper weight so that the effect of improving the positioning precision is achieved. According to the method, the characteristic that the convergence speed of the low-orbit navigation enhanced PPP is high is utilized, the carrier phase ambiguity is quickly converged, and then orbit error parameters are introd |
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Bibliography: | Application Number: CN202111040836 |