Mitigation of delay and scintillation effects using MIDAS

Damien Allain, Cathryn Mitchell

Research output: Contribution to conferencePaper

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.

Conference

ConferenceURSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale)
CountryUSA United States
CityChicago, Illinois
Period7/08/0816/08/08

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positioning
mitigation
electron density
navigation
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Europe

Cite this

Allain, D., & Mitchell, C. (2008). Mitigation of delay and scintillation effects using MIDAS. Paper presented at URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), Chicago, Illinois, USA United States.

Mitigation of delay and scintillation effects using MIDAS. / Allain, Damien; Mitchell, Cathryn.

2008. Paper presented at URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), Chicago, Illinois, USA United States.

Research output: Contribution to conferencePaper

Allain, D & Mitchell, C 2008, 'Mitigation of delay and scintillation effects using MIDAS' Paper presented at URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), Chicago, Illinois, USA United States, 7/08/08 - 16/08/08, .
Allain D, Mitchell C. Mitigation of delay and scintillation effects using MIDAS. 2008. Paper presented at URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), Chicago, Illinois, USA United States.
Allain, Damien ; Mitchell, Cathryn. / Mitigation of delay and scintillation effects using MIDAS. Paper presented at URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale), Chicago, Illinois, USA United States.
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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.",
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note = "URSI 2008 (XXIX General Assembly of the International Union of Radio Science / Union Radio Scientifique Internationale) ; Conference date: 07-08-2008 Through 16-08-2008",

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AU - Mitchell, Cathryn

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