CEOS Instrument: X-Band Synthetic Aperture Radar

Instrument:X-Band SAR
Agency: DLR
Missions: TerraSAR-X
Type:Imaging radar (SAR)
Description:High resolution images for monitoring of land surface and coastal processes and for agricultural, geological and hydrological applications
Spatial Resolution: Spotlight: 1.2 x 1 - 4 m Stripmap: 3 x 3 - 6 m ScanSAR: 16 x 16 m
Swath Width: Spotlight: 5-10km x 10 km, Stripmap: 30 km, ScanSAR: 100 km
Wavebands: 9.65 GHz, 300 MHz bandwidth, all 4 polarisation modes
Technology: Imaging radar (SAR)
Description: If radar is used, the problem of diffraction-limited resolution in MW still applies. In this case, however, by analysing range, azimuth and Doppler effect of the (coherent) signals, synthetic aperture can be implemented, and resolutions typically of 10-30 m can be achieved. Several combinations of polarisations in transmission and reception can be implemented. Resolution can be traded-off with swath (e.g. 30 m / 100 km or 150 m / 400 km). Interferometry between views from different passes enable appreciating changes. SAR exploiting different bands (L, S, C, X) emphasise different features. Applicable only in LEO.

Measurement List:

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CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18