|
|
|
Tropospheric Zenith Delay Modeling With Fourier Transform Method
Mehdi Alaiebakhsh
MSc Student
Faculty of Geodesy and Geomatics Engineering, K.N. Toosi University of Technology,
Iran
Email: m_alaiebakhsh@yahoo.com
Dr. Behzad Voosoghi
Associate Professor
Faculty of Geodesy and Geomatics Engineering, K.N. Toosi University of Technology
Email: vosoghi@ kntu.ac.ir
The atmosphere causes delays in GPS signals. The atmosphere consists of two layer, ionosphere and troposphere. The ionosphere bias can be removed using dual frequency receivers. But, troposoheric bias is often modeled with standard tropospheric modeling.
For precise real-time applications, it is important to recover tropospheric delay estimation. In this paper, we have used fourier transform method for real-time troposoheric bias modeling. Results indicate that the zenith delay may be modeled with accuracies at the sub-centimeter. This research is based on the tropospheric zenith delay information of five GPS reference stations in Iran. Time series interval is two hours.
|
|
|