CEOS Instrument: Synthetic Aperture Radar (CSA) C band




Instrument:SAR (RCM)
Agency: CSA
Missions: RADARSAT C-1
 RADARSAT C-2
 RADARSAT C-3
Status:Being developed
Type:Imaging radar (SAR)
Description:All-weather, C-band data to support ecosystem monitoring, maritime surveillance and disaster management.
Spatial Resolution: Low Resolution 100m: 100 x 100m (8 looks); Medium Resolution 50m: 50 x 50m (4 looks); Medium Resolution 16m: 16 x 16m (4 looks); Medium Resolution 30m: 30 x 30m (4 looks); High-Resolution 5m: 5 x 5m (1 look); Very High Resolution 3m: 3(@35deg) x 3m (1 look); Spotlight: 3(@35deg) x 1m (1 look); Low Noise: 100 x 100m (8 looks); Ship Detection: Variable.
Swath Width: Low Resolution 100m: 500 km; Medium Resolution 50m: 350 km; Medium Resolution 16m: 30 km; Medium Resolution 30m: 125 km; High-Resolution 5m: 30 km; Very High Resolution 3m: 20 km; Low Noise: 350 km; Spotlight: 5 km; Ship Detection: 350 km.
Wavebands: Microwave: C band 5.405 GHz: HH, VV, HV, VH polarization - includes Quad polarization imaging mode and compact polarimetry.
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