Product Specification Find Data
Product Overview¶
The GOFF product is an L2 product derived from the ROFF product by geocoding the pixel offset layers and associated data layers (i.e., SNR) on a geographical grid at 80 m posting. Geocoding uses the orbit of the reference RSLC product and a DEM to project the data onto a pre-defined UTM or Polar stereographic projection system map grid. The geocoding algorithm uses a bilinear interpolation for interpolating data layers with floating-point data types.
The GOFF product contains a collection of data layers representing the pixel offset shifts between a pair of coarsely coregistered RSLC granules. The spacing, the window size, and the search radius used to generate the pixel offset layers in the range-Doppler geometry are organized by range bandwidth and area of observation.
Pixel offset layers are distributed without performing any conventional post-processing operation, i.e., layers might contain offset outliers and are not low pass filtered to reduce noise in the data.