A Phase Control Method for MEO Constellation

By using the historical phase data of the MEO constellation, we established a phase difference evolution model and determined the phase control strategy, which solved the problems of Beidou MEO constellation phase maintenance accuracy and long-term orbit prediction accuracy, and achieved higher phase maintenance accuracy and more reliable orbit prediction. .

CN112173174BInactive Publication Date: 2025-01-24CHINA XIAN SATELLITE CONTROL CENT
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202011102421.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-10-15
Publication Date
2025-01-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The phase maintenance period of Beidou MEO constellation is long, making it difficult to ensure the accuracy of long-term orbit forecasts. Traditional methods are greatly affected by the initial orbit and forecast accuracy.

Method used

Through the evolution rules of historical phase data, the relationship between the phase difference between the satellite and the reference star that needs to be controlled is established, the phase control strategy is determined, and errors caused by the initial orbit and forecast are avoided.

Benefits of technology

The accuracy of the MEO constellation phase is improved, the error in the control cycle is reduced, and the reliability of long -term rail forecasting is enhanced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure FDA0002725837400000011
    Figure FDA0002725837400000011
  • Figure FDA0002725837400000021
    Figure FDA0002725837400000021
  • Figure GDA0002773540280000021
    Figure GDA0002773540280000021
Patent Text Reader

Abstract

The present invention provides a phase control method for a MEO constellation, comprising step one: inputting historical phase difference data of a satellite to be controlled and a reference star to determine the phase difference, step two: establishing and determining the relationship between the phase difference of the satellite to be controlled and the reference star, step three: determining the semi-major axis deviation of the satellite to be controlled and the reference star, and step four: determining the semi-major axis control amount of the satellite to be controlled. The present invention utilizes the historical phase information of the MEO constellation to establish a phase evolution model, proposes a MEO constellation phase control strategy based on the historical phase, and determines the phase control strategy through the evolution law of the historical phase data. The method avoids errors caused by the initial orbit and prediction.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Unpowered constellation keeping control method for near-earth satellite

    CN109353544A

  • Low-orbit constellation system phase keeping method, system and device and storage medium

    CN111591469A