Training method and device for GNSS satellite orbit forecast deviation analysis model

Abstract

The present disclosure discloses a training method and device for a GNSS satellite orbit prediction deviation analysis model, wherein the method includes: acquiring fast orbit determination data of a target satellite in a first time period and orbit prediction data in a second time period ; Input the fast orbit determination data of the first time period and the orbit forecast data of the second time period as the first input data into the preset orbit forecast deviation generating network to obtain the orbit forecast deviation of the second time period of the target satellite Input the orbit forecast deviation amount of the second time period, the orbit forecast data of the second time period, and the final orbit determination data of the target satellite in the first time period and the second time period into the preset identification network to obtain Discrimination results; according to the identification results, the orbit prediction deviation generating network is trained, and the orbit prediction deviation analysis model is obtained. The orbit prediction deviation analysis model can enhance the orbit prediction accuracy of post-processing orbits and weaken the influence of errors.

Description

technical field [0001] The present disclosure relates to the technical field of navigation, in particular to a training method and device for a GNSS satellite orbit prediction deviation analysis model. Background technique [0002] With the continuous development of GNSS positioning technology, the application scenarios have become rich and diverse, especially the demand for high-precision positioning is increasing. There are many factors that affect the accuracy of GNSS positioning, and these factors lead to various errors in the positioning process. Errors in GNSS positioning mainly include satellite-related errors, signal propagation-related errors, and receiver-related errors. The satellite-related errors include satellite orbital errors and clock errors. [0003] The satellite orbit error is mainly due to the deviation between the satellite position calculated according to the satellite ephemeris and the actual position. The satellite ephemeris currently used for GNS...

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Problems solved by technology

[0005] The purpose of the embodiments of the present disclosure is to provide a training method and device for a GNSS satellite orbit prediction deviation analysis model, so as to at least solve the problem of relatively low accuracy of the existing orbit prediction

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