English
norskImproving Doppler frequency estimation from Envisat data
Permanent lenke
https://hdl.handle.net/10037/12801
Dato
2014-11-06Type
Journal articleTidsskriftartikkel
Peer reviewed
Sammendrag
This paper shows that Envisat ASAR data are degraded by a small periodic variation in gain between internal calibration cycles of the antenna, which introduces a significant bias when we try to estimate line-of-sight surface velocities from the estimated Doppler frequency shifts. We investigate the impact of the gain problems on the derived surface velocity product and propose a simple correction of the raw data.
Beskrivelse
Embargo of 24 months from date of publishing on accepted manuscript version.
Link to publisher's version: http://doi.org/10.1109/IGARSS.2014.6946627
Copy right notice:https://www.ieee.org/publications/rights/rights-policies.html
Link to publisher's version: http://doi.org/10.1109/IGARSS.2014.6946627
Copy right notice:https://www.ieee.org/publications/rights/rights-policies.html