The EW SLC products contain one image per sub-swath, per polarisation channel, for a total of five or ten images. Each TOPSAR EW burst in a sub-swath is processed as a separate SLC image, and included in a sub-swath image exactly as in the IW case. Like the IW mode, EW is a one natural azimuth look mode, and therefore the EW and IW images have similar properties. As for the IW SLC products, the images for all bursts in all sub-swaths of an EW SLC product are re-sampled to a common pixel spacing grid in range and azimuth.
| Beam ID | EW1 | EW2 | EW3 | EW4 | EW5 |
|---|---|---|---|---|---|
| Spatial Resolution rg x az m | 7.9x43.7 | 9.9x44.3 | 11.6x45.2 | 13.3x45.6 | 14.4x44.0 |
| Pixel spacing rg x az m | 5.9x19.9 | 5.9x19.9 | 5.9x19.9 | 5.9x19.9 | 5.9x19.9 |
| Incidence angle ° | 23.7 | 30.9 | 36.2 | 40.9 | 44.5 |
| Range look bandwidth MHz | 22.2 | 15.1 | 12.9 | 11.3 | 10.4 |
| Azimuth look bandwidth Hz | 225 | 154 | 151 | 149 | 154 |
| Range Hamming weighting coefficient | 0.60 | 0.75 | 0.75 | 0.75 | 0.75 |
| Azimuth Hamming weighting coefficient | 0.50 | 0.75 | 0.75 | 0.75 | 0.75 |
| Product ID | EW_SLC |
|---|---|
| Pixel value | Complex |
| Coordinate system | Slant range |
| Bits per pixel | 16 I and 16 Q |
| Polarisation options | Single (HH or VV) or Dual (HH+HV or VV+VH) |
| Ground range coverage km | 410 |
| Equivalent Number of Looks (ENL) | 1 |
| Radiometric resolution | 3 |
| Absolute location accuracy m (NRT) | Not specified |
| Number of looks (range x azimuth) | 1 x 1 |