Analyzing Terrasar-x and Cosmo-skymed High-resolution Sar Data of Urban Areas
نویسندگان
چکیده
The new high-resolution synthetic aperture radar (SAR) satellite systems offer new possibilities for urban remote sensing. COSMOSkyMed and TerraSAR-X operate in X-band and both can deliver data with a spatial resolution of up to one meter. High-resolution SAR data is particularly useful for post-disaster damage assessment and monitoring, because SAR systems operate (almost) weather independent. Interferometric SAR (InSAR) can be used to generate precise 3D models of urban areas, and using Persistent Scatterer Interferometry (PS-InSAR) urban subsidence can be measured precisely. * Corresponding author.
منابع مشابه
Carsten Jürgens (Ed.): Remote Sensing - New Challenges of High Resolution, Bochum 2008
The new spaceborne very high resolution (VHR) SAR sensors onboard the TerraSAR-X and COSMO-SkyMED satellites have a spatial resolution of up to 1 meter. In VHR SAR data, features from individual urban structures, like buildings, can be identified in their characteristic settings in urban settlement patterns. In the context of situation assessment as initial reaction to man made or natural crisi...
متن کاملA Study of the Rpc Model of Terrasar-x and Cosmo-skymed Sar Imagery
The rational polynomial coefficient (RPC) model has recently raised considerable interest in the photogrammetry and remote sensing community. This model is a generalized sensor model that is capable of achieving high approximation accuracy. Unfortunately, in all previous literature, the computation of the parameters of the RPC model depends on initial values for the parameters. In this paper, a...
متن کاملVery High Resolution Parametric and Non- Parametric Sartomography Methods for Monitoring Urban Areas Structures
Synthetic Aperture Radar (SAR) is the only way to evaluate deformation of the Earth’s surface from space on the order of centimeters and millimeters due to its coherent nature and short wavelengths. Hence, by this means the long term risk monitoring and security are performed as precisely as possible. Traditional SAR imaging delivers a projection of the 3-D object to the two dimensional (2-D) a...
متن کاملCentimeter Range Measurement Using Amplitude Data of Terrasar-x Imagery
The SAR (Synthetic Aperture Radar) imagery are largely used for the environmental, structures and infrastructures monitoring. In particular, Differential SAR Interferometry (DInSAR) is a well known technique that allows producing spatially dense displacement maps with centimetre to millimetre accuracy. The SAR signal is characterized by phase and amplitude value and the DInSAR remote sensing te...
متن کاملAccuracy Assessment of Building Height Estimation from a High Resolution Optical Image Combined with a Simulated Sar Image
Modern space borne SAR sensors like TerraSAR-X and COSMO-SkyMed are capable of acquiring images with a geometric ground resolution of one meter. Airborne sensors achieve even higher ground resolution. In such very high resolution SAR imagery single objects like houses and bridges become visible. However, effects due to the side-looking slant range acquisition principle of SAR, layover, foreshor...
متن کامل