1. Department of Computer and Spatial Sciences University of Gävle Gävle Sweden
2. Division of Geodesy and Satellite Positioning Royal Institute of Technology (KTH) Stockholm Sweden
3. Hubei Subsurface Multi‐scale Imaging Key Laboratory Institute of Geophysics and Geomatics China University of Geosciences Wuhan China
4. Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Telegrafenberg Germany
5. Department of Geomatics Engineering Civil Engineering Faculty Shahid Rajaee Teacher Training University Tehran Iran