The magnetometer has long been a reliable, inexpensive sensor used in spacecraft momentum management and attitude estimation. Recent studies show an increased accuracy potential for magnetometer-only attitude estimation systems. Since the Earth's magnetic field is a function of time and position, and since time is known quite precisely, the differences between the computer and measured magnetic field components, as measured by the magnetometers throughout the entire spacecraft orbit, are a function of both the spacecraft trajectory and attitude errors. Therefore, these errors can be used to estimate both trajectory and attitude. Traditionally, satellite attitude and trajectory have been estimated with completely separate system, using different measurement data. Recently, trajectory estimation for low earth orbit satellites was successfully demonstrated in ground software using only magnetometer data. This work proposes a single augmented extended Kalman Filter to simultaneously and autonomously estimate both spacecraft trajectory and attitude with data from a magnetometer and either dynamically determined rates or gyro-measured body rates.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Attitude and Trajectory Estimation Using Earth Magnetic Field Data


    Contributors:

    Publication date :

    1996


    Size :

    16 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Attitude and Trajectory Estimation Using Earth Magnetic Field Data

    Deutschmann, J. / Bar-Itzhack, I. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 1996


    Attitude and Trajectory Estimation Using Earth Magnetic Field Data

    Deutschmann, Julie / Bar-Itzhack, Itzhack Y. | NTRS | 1996


    Attitude and trajectory estimation using Earth magnetic field data

    Deutschmann, Julie / Bar-Itzhack, Itzhack | AIAA | 1996


    Comprehensive evaluation of attitude & orbit estimation using real Earth magnetic field data

    Deutschmann, J. / Bar-Itzhack, I. | British Library Online Contents | 1997


    Comprehensive evaluation of attitude & orbit estimation using real Earth magnetic field data

    Deutschmann, J. / Bar-Itzhack, I. / European Space Agency | British Library Conference Proceedings | 1997