Stripmap SLCs contain one image per polarisation band from one of six overlapping beams. Each beam covers 80.1 km, covering a combined range of 375 km. Pixel spacing is determined, in azimuth by the pulse repetition frequency (PRF), and in range by the radar range sampling frequency, providing natural pixel spacing.
Beam | S1 | S2 | S3 | S4 | S5 | S6 |
Spatial Resolution rg x az m | 1.7 x 4.9 | 2.0x4.9 | 2.5x4.9 | 3.3x4.9 | 3.3x3.9 | 3.6x4.9 |
Pixel spacing rg x az m | 1.5x3.6 | 1.8x4.2 | 2.2x3.5 | 2.6x4.1 | 2.9x3.6 | 3.1x4.1 |
Incidence angle ° | 22.3 | 25.6 | 31.2 | 36.4 | 41.0 | 43.8 |
Range look bandwidth MHz | 87.6 | 74.2 | 59.4 | 50.6 | 44.9 | 42.2 |
Azimuth look bandwidth Hz | 1586 | 1405 | 1904 | 1429 | 1886 | 1398 |
Range Hamming weighting coefficient | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 |
Azimuth Hamming weighting coefficient | 0.75 | 0.75 | 0.75 | 0.75 | 0.65 | 0.75 |
Product ID | SM_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 | 80.1 |
Equivalent Number of Looks (ENL) | 1 |
Radiometric resolution | 3 |
Absolute location accuracy m (NRT) | 2.5 |
Number of looks (range x azimuth) | 1 x 1 |
SM mode products are only used for small islands and on request for extraordinary events such as emergency management.