elib (German Aerospace Center) · 1997 · 12 citations · 0 references
Natural SciencesEarth SciencesGeoinformaticsGeomorphologyRemote SensingVolcanologyGeophysical Signal ProcessingInterferometryLand Cover ClassificationLand Surface MonitoringSatellite SensorsVolcanic MonitoringInsar AnalysisInsar MonitoringInsar Time Series AnalysisInterferometric MeasurementRadar InterferometrySatellite Radar InterferometrySynthetic Aperture Radar InterferometryTemporal Coherence
The potential of satellite repeat-passSAR interferometry for mapping and monitoring of different natural surfaces is discussed here. The presented approaches are based on analysis of the interferometric coherence using SIR-C/X-SAR and ERS-1/ERS-2 tandem data from the Mt. Etna test site in Sicily, Italy. The evaluation of the frequency dependent coherence of several volcanic terrain types is used as a first order approach for classification. Parallel a second classification algorithm based on the temporal decorrelation behavior of different surfaces in only one frequency is addressed. The results of the algorithms are compared and discussed.