what is cosar
Essentially, COSAR is an annotated binary matrix, with each sample held in 4 bytes (16 bytes real, 16 bytes imaginary) stored with the most significant byte first (Big Endian). Within a COSAR container there are one or more bursts which represent individual ScanSAR bursts. Note that if a Stripmap or Spotlight product is held in a COSAR container it is stored in a single burst. Support for ScanSAR data is currently under way, due to the difficulties in fitting the ScanSAR burst identifiers into the GDAL model.