Observation of weak astronomical radio source by very-long-baseline interferometry (VLBI) enhanced by using relatively strong astronomical radio source within small angular distance from weak source. Strong source and weak source observed alternately during measurement session. Direct detection of strong source provides reference delays and rates of change of delays used to integrate radio visibilities of weak source. Integrated visibilities added coherently over entire measurement session, using observed phases of strong source as references.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Stronger Source As Reference For Weaker Source In VLBI



    Published in:

    Publication date :

    1992-07-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





    VLBI measurements of radio source positions at the Jet Propulsion Laboratory

    Purcell, G. H., Jr. / Fanselow, J. L. / Thomas, J. B. et al. | NTRS | 1980



    Global Reference Frame, Intercomparisons of Results (SLR, VLBI, GPS)

    Watkins, M. M. / Heflin, M. / Goddard Space Flight Center; Laboratory for Terrestrial Physics | British Library Conference Proceedings | 1994


    Orbiting VLBI

    Burke, Bernard F. | Elsevier | 1983