Title :
A new approach based on network theory to locate phase unwrapping unreliable results
Author_Institution :
Adv. Comput. Syst. S.p.A, Rome, Italy
Abstract :
Two-dimensional phase unwrapping (PU) is always affected by errors. In this paper we propose and implement a new method that locates the large and small-scale PU errors. In addition, by using ground control points, we eliminate the largescale errors. The method is tested on the real and simulated SAR interferometric data. Results of the tests indicate a high efficiency of the proposed method
Keywords :
geophysical techniques; radar theory; remote sensing by radar; synthetic aperture radar; terrain mapping; InSAR; SAR; errors; geophysical measurement technique; ground control points; interferometric SAR; land surface; large scale error; method; network theory; phase unwrapping unreliable results; radar remote sensing; synthetic aperture radar; terrain mapping; two dimensional phase unwrapping; Amplitude estimation; Computer errors; Computer networks; Error correction; Large-scale systems; Phase detection; Phase noise; Pixel; Proposals; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976075
