Computer Science – Performance
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ep%26s...61..733n&link_type=abstract
Earth, Planets and Space, Volume 61, p. 733-745.
Computer Science
Performance
3
Scientific paper
This paper describes the results from the recently launched SAR satellites for the purpose of subsidence monitoring over underground coal mine sites in the state of New South Wales, Australia, using differential interferometric synthetic aperture radar (DInSAR) technique. The quality of the mine subsidence monitoring results is mainly constrained by noise due to the spatial and temporal decorrelation between the interferometric pair and the phase discontinuities in the interferogram. This paper reports on the analysis of the impact of these two factors on the performance of DInSAR for monitoring ground deformation. Simulations were carried out prior to real data analyses. SAR data acquired using different operating frequencies, for example, X-, C- and L-band, from the TerraSAR-X, ERS-1/2, ENVISAT, JERS-1 and ALOS satellite missions, were examined. The simulation results showed that the new satellites ALOS, TerraSAR-X and COSMO-SkyMed perform much better than the satellites launched before 2006. ALOS and ENVISAT satellite SAR images with similar temporal coverage were searched for the test site. The ALOS PALSAR DInSAR results have been compared to DInSAR results obtained from ENVISAT ASAR data to investigate the performance of both satellites for ground subsidence monitoring. Strong phase discontinuities and decorrelation have been observed in almost all ENVISAT interferograms and hence it is not possible to generate the displacement maps without errors. However these problems are minimal in ALOS PALSAR interferograms due to its spatial resolution and longer wavelength. Hence ALOS PALSAR is preferred for ground subsidence monitoring in areas covered by vegetation and where there is a high rate ground deformation.
Chang Hung C.
Ge Li
Ng H.-M. A.
Omura M.
Rizos C.
No associations
LandOfFree
Assessment of radar interferometry performance for ground subsidence monitoring due to underground mining does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Assessment of radar interferometry performance for ground subsidence monitoring due to underground mining, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assessment of radar interferometry performance for ground subsidence monitoring due to underground mining will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1071108