Standard SAR Imagery Products
Single Look Complex (SLC)
- Contains both amplitude and phase of the radar signal
- Range-compressed and focused SAR image in slant-range geometry
- Georeferenced using orbit data and Range-Doppler projected
|
Product |
Imaging Mode |
Nominal Scene Size |
Azimuth Resolution |
Slant Range Resolution |
Look Angle Range |
|
Spot SLC |
Spotlight |
5 km x 5 km |
0.5 m |
0.3 m |
25° to 50° |
|
Site SLC |
Sliding Spotlight |
5 km x 10 km |
1.0 m |
0.5 m |
25° to 50° |
|
Strip SLC |
Stripmap |
5 km x 20 km |
1.2 m |
0.75 m |
25° to 50° |
Geocoded Terrain Corrected (GEO)
- Contains amplitude information only
- Range-compressed, detected, focused and multi-looked SAR image
- Multi-look techniques applied to enhance radiometric resolution
- Terrain-height corrected using a high-resolution Digital Elevation Model (DEM)
- UTM-WGS84 map projection
|
Product |
Imaging Mode |
Nominal Scene Size |
# Of Looks |
Azimuth Resolution |
Ground Range Resolution |
Pixel Spacing |
Look Angle Range |
|
Spot GEO |
Spotlight |
5 km x 5 km |
9 |
0.5 m |
0.4 m to 0.7 m |
0.35 m |
25° to 50° |
|
Site GEO |
Sliding Spotlight |
5 km x 10 km |
5 |
1.0 m |
0.7 m to 1.2 m |
0.6 m |
25° to 50° |
|
Strip GEO |
Stripmap |
5 km x 20 km |
1 |
1.2 m |
1.1 m to 1.6 m |
0.8 m |
25° to 50° |
Extended SAR imagery products
Extended SAR imagery products provide increased acquisition opportunities and shorter revisit time periods via imaging acquisitions in broader look angle ranges than the standard products. All other imaging acquisition parameters use the same settings as standard products.
SLC Extended
|
Product |
Imaging Mode |
Nominal Scene Size |
Azimuth Resolution |
Slant Range Resolution |
Look Angle Range |
|
Strip SLC (Extended) |
Stripmap |
5 km x 20 km |
1.2 m |
0.75 m |
15° to 50° |
Geo Extended
|
Product |
Imaging Mode |
Nominal Scene Size |
# Of Looks |
Azimuth Resolution |
Ground Range Resolution |
Pixel Spacing |
Look Angle Range |
|
Strip GEO (Extended) |
Stripmap |
5 km x 20 km |
1 |
1.2 m |
1.1 m to 2.7 m |
0.8 m |
15° to 50° |
Custom SAR Imagery Products
Capella's custom SAR imagery acquisition is unique in that it provides optimal utilization of satellite capacity by allowing imaging across the full 5°-50° accessible look angle range of the Capella radar system.
Custom SAR imagery products are available to users by submitting new acquisition tasking requests using either the Capella Console or Capella API. You can review a table of our custom parameters here.
Imaging acquisition parameters for custom SAR imagery products. In GEO image product type the number of looks in azimuth is fixed to 9, 5 and 1 for Spot, Site and Strip, respectively. When custom collects are requested SLC image product type is recommended in order to optimize multi-looking and geocoding to match user needs.