 |
|
|
||||
| USGS Earth Resources Observation and Science Center (EROS) |
The single look complex (SLC) data product is a CEOS-formatted frame image that is 50 km along the flight track by the swath width (which will vary with the viewing geometry and the radar mode). The image is in slant range with natural spacing and is full resolution. Typically the files are hundreds of megabytes for each scene.
SLC data are available as calibrated or uncalibrated data products, although most were processed to a calibrated product.
SLC data products are designed for experienced radar scientists who want to use the data to derive their own calibration parameters or to study radar calibration issues.
SIR-C SLC quad-pol data contain 10 bytes per pixel; dual polarization data will contain 6 bytes per pixel and single polarization data will contain 4 bytes per pixel. The polarization depends upon the mode in which the data were collected.
All SLC products consist of one file for each scene, per frequency. Each line of the file consists of varying range samples (based on datatake), in which range increases with sample number. The number of lines per file also varies based on datatake. Each line corresponds to different azimuth or along track locations. Data is single look complex scattering matrix data. There is no symmetrization of the data. There is no general scale factor. File size is generally greater than 100 Mbytes.
The resolution of the SLC data will depend on the mode, but for 20 Mhz data the range pixel spacing is 6.667 m, and the azimuth pixel spacing is typically around 10 m.
Previously processed SLC data can be ordered from EarthExplorer.
Since this data product is in the CEOS format, you will need the CEOS Reader Software and associated programs in order to read these data.
| AccessibilityFOIAPrivacyPolicies and Notices | |
  |
|