Title :
Geodetic quality assessment of a low-cost InSAR transponder
Author :
Mahapatra, Pooja S. ; Samiei-Esfahany, Sami ; Hanssen, Ramon F. ; van der Marel, Hans
Author_Institution :
Dept. of Geosci. & Remote Sensing, Delft Univ. of Technol., Delft, Netherlands
Abstract :
The geodetic quality of a low-cost commercial off-the-shelf InSAR transponder has been empirically assessed, both under controlled conditions and operationally for landslide monitoring. Comparison of 113 transponder-InSAR observations with independent validation measurements (levelling or GPS) yields a transponder precision range of 1.8-4.6 mm after outlier removal for double-difference (spatial and temporal) phase measurements in the satellite line of sight for Envisat and ERS-2, making it a compact and lightweight alternative to a corner reflector for C-band InSAR.
Keywords :
Global Positioning System; artificial satellites; geodesy; radar interferometry; synthetic aperture radar; transponders; C-band InSAR; ERS-2 line of sight satellite; Envisat line of sight satellite; GPS; double-difference phase measurement; geodetic quality assessment; independent validation measurement; landslide monitoring; low-cost commercial off-the-shelf InSAR transponder; outlier removal; size 1.8 mm to 4.6 mm; spatial phase measurement; temporal phase measurement; Global Positioning System; Phase measurement; Radar cross-sections; Radar tracking; Standards; Transponders; InSAR; corner reflector; crustal deformation; measurement precision; transponder;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6721357
