Title :
On the feasibility of long time scale INSAR
Author :
Usai, Stefania ; Klees, Roland
Author_Institution :
Inst. for Earth-Oriented Space Res., Delft Univ. of Technol., Netherlands
Abstract :
A study on the applicability of the INSAR technique on long time scales is presented. The authors generated a database of 69 ERS-1/ERS-2 interferograms of the Groningen area, in the north of The Netherlands, spanning the years from 1992 to 1996. From this database they tried to extract information on the phase stability of man-made features. For this purpose the differential technique has been applied on the interferometric phase values of high coherence pixels along a road. These resulted to be stable in 90% of the cases at the level of 0.6 cm, even on time scales of more years. Also many isolated man-made features revealed the same phase stability in time
Keywords :
geophysical techniques; remote sensing by radar; synthetic aperture radar; AD 1992 to 1996; ERS-1; ERS-2; Groningen; Holland; InSAR; The Netherlands; geophysical measurement technique; high coherence pixel; interferogram; interferometric SAR; interferometric phase value; land surface; land use; long time scale INSAR; man-made feature; phase stability; radar remote sensing; road; synthetic aperture radar; terrain mapping; Azimuth; Data mining; Image databases; Pixel; Roads; Space technology; Spatial databases; Stability; Synthetic aperture radar interferometry; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.702242
