Seasat

Seasat was a satellite launched by NASA in 1978 that carried an L-band SAR. One of the first demonstrations of repeat-pass InSAR was done with Seasat data, using programs that were early precursors of the programs in ROI_pac. 

Mapping small elevation changes over large areas - Differential radar interferometry  
GABRIEL, ANDREW K; GOLDSTEIN, RICHARD M; ZEBKER, HOWARD A 
Journal of Geophysical Research. Vol. 94, pp. 9183-9191. 10 July 1989

Seasat SAR was recorded in "offset video" encoding, not the I, Q encoding used on all the present SAR satellites. ROI_pac can process the offset video data by just setting the "Flip I, Q" parameter of the "roi" input file to the letter "o".

Seasat (last edited 2007-08-23 13:50:26 by EricFielding)