Title :
Tropospheric signal delay estimation in repeat-pass SAR Interferometry with QR-factorization
Author :
Saqellari-Likoka, A. ; Karathanassi, Vassilia
Author_Institution :
Nat. Tech. Univ. of Athens, Athens
Abstract :
In this paper we analyze the reason why the QR-factorization is a very useful method for estimate the atmospheric delay in the unwrapped step of the SAR interferometric processing. We compute the solution of phase delay parameter model and confront the result with the GPS data metrics and the result from the Saastamoinen model. It is important to develop the new method for estimate the atmospheric phase delay and errors unwrapping procedure without the GPS or metrological data.
Keywords :
atmospheric techniques; delay estimation; radar interferometry; synthetic aperture radar; troposphere; GPS data metrics; QR-factorization; Saastamoinen model; atmospheric delay; phase delay parameter model; repeat-pass SAR interferometry; tropospheric signal delay estimation; Atmospheric modeling; Delay effects; Delay estimation; Global Positioning System; Laboratories; Least squares approximation; Matrices; Phase estimation; Synthetic aperture radar; Synthetic aperture radar interferometry;
Conference_Titel :
Control & Automation, 2007. MED '07. Mediterranean Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1281-5
Electronic_ISBN :
978-1-4244-1282-2
DOI :
10.1109/MED.2007.4433661
