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      • Department of Electrical and Electronics Engineering
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      Ionospheric total electron content estimation using IONOLAB method

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      Author
      Nayir, H.
      Arıkan, F.
      Erol, C. B.
      Arıkan, Orhan
      Date
      2007
      Source Title
      Proceedings of the 15th Signal Processing and Communications Applications, IEEE 2007
      Publisher
      IEEE
      Language
      Turkish
      Type
      Conference Paper
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      Abstract
      Ionosphere which is an important atmospheric layer for HF and satellite communications, can be investigated through Total Electron Content (TEC). Global Positioning System provides cost-effective means for TEC estimation. Regularized TEC estimation method (D-TEI) is developed to estimate high resolution, robust TEC values. The method combines measurements of GPS satellites above 10° elevation limit and estimates can be obtained with 30 s time resolution. In this paper, parameters that are used in D-TEI method such as ionospheric height, weighting function, and satellite receiver biases are studied. It is found that TEC estimation results of D-TEI method is almost independent of ionospheric height. Different weighting functions are tried and the weighting function that minimizes non-ionospheric effects is selected. By using satellite and receiver biases in the correct form consistent TEC estimation results are obtained with IGS analysis centers. In this paper, the method is improved to include phase measurements. Taking either pseudorange or phase measurements as input, high resolution, robust TEC estimates are obtained using D-TEI method.
      Keywords
      Cost-effective means
      Estimation methods
      Estimation results
      GPS satellites
      High resolutions
      Ionospheric effects
      Ionospheric total electron content
      Positioning systems
      Satellite communications
      Time resolutions
      Total electron content
      Weighting functions
      Cost effectiveness
      Global positioning system
      Industrial economics
      Laws and legislation
      Phase measurement
      Satellite communication systems
      Satellite navigation aids
      Satellites
      Signal processing
      Estimation
      Permalink
      http://hdl.handle.net/11693/26933
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/SIU.2007.4298565
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      • Department of Electrical and Electronics Engineering 3339

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