Research

Mitigation of delay and scintillation effects using MIDAS


Reference:

Allain, D. and Mitchell, C., 2008. Mitigation of delay and scintillation effects using MIDAS. In: URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), 2008-08-07 - 2008-08-16, Chicago, Illinois.

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    Abstract

    MIDAS, a 4D tomographic technique is used to map the ionospheric electron density over Europe. The ionospheric maps are then used to calculate the excess delay at the L1 frequency. The excess delay is applied to correct the pseudorange observations and the improvements to the resulting positioning are calculated. The technique is shown to give navigation solutions comparable to those obtained from dual-frequency receivers and the MIDAS approach is more robust against scintillation. The diurnal trend of the ionospheric delay is well compensated for with the correction technique. Improvements in positioning accuracy during selected days are up to 25m.

    Details

    Item Type Conference or Workshop Items (Paper)
    CreatorsAllain, D.and Mitchell, C.
    DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
    RefereedNo
    StatusPublished
    ID Code13694

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