AbstractAmbiguity validation is a quality control step for ambiguity resolution. It is realized by integer aperture (IA) estimator and critical value determination approach. During the past decades, most of research about IA estimator were mainly implemented by numerical simulation. The influence of biases to IA estimation has not been studied. Actually, ambiguity resolution is subject to various kinds of biases in practice, which influences the performance of IA estimation. In this contribution, properties of IA estimators are investigated when they are biased. The probability evaluation formulae for IA estimators with bias-affected are derived and verified. The proper ways to evaluate biased-IA estimators are recommended by numerical experiments. In addition to this, the influences of atmospheric biases to IA estimation are analyzed in different experiments. Those results show that under the same influence of biases, all IA estimators have no better positioning precision than integer estimator, and different IA estimators may lead to different positioning precision. A better choice of IA estimator may lead to less loss of positioning precision. However, if biases can be properly separated, positioning precision of integer and IA estimators can be greatly improved. Hence, the adaptation of biases is more important than the choice of IA estimators in positioning and other applications.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Integer aperture estimation in the presence of biases


    Beteiligte:
    Zhang, Jingyu (Autor:in) / Wu, Meiping (Autor:in) / Hou, Yanqing (Autor:in)

    Erschienen in:

    Advances in Space Research ; 60 , 12 ; 2533-2549


    Erscheinungsdatum :

    2017-03-23


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Mars lander position estimation in the presence of ephemeris biases.

    Blackshear, W. T. / Tolson, R. H. / Day, G. M. | NTRS | 1972


    Mars Lander Position Estimation in the Presence of Ephemeris Biases

    THOMAS BLACKSHEAR / ROBERT H. TOLSON / AND GAIL M. DAY NASA Langley Research Center et al. | AIAA | 1973


    Mars lander position estimation in the presence of ephemeris biases

    BLACKSHEAR, W. / TOLSON, R. / DAY, G. | AIAA | 1972


    Estimation of Attitude Sensor Timetag Biases

    Sedlak, J. / Goddard Space Flight Center | British Library Conference Proceedings | 1995


    Magnetometers-Based Angular Rates Biases Estimation

    Segal, Shai / Boyarski, Shmuel | British Library Conference Proceedings | 2015