By Topic

Elevation-dependent motion compensation for frequency-domain bistatic SAR image synthesis

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Cantalloube, H.M.J. ; Office Nat. d''Etudes et Recherche Aerospatiales, Palaiseau ; Krieger, G.

While numerically more efficient, frequency domain SAR image synthesis is less easily adaptable to the irregular real airborne trajectories than time-domain image synthesis. Trajectory nonlinearities have another consequence: The image focusing depends on the terrain elevation, hence motion compensation for irregular trajectories on mountainous areas must take into account terrain elevation data. Bistatic SAR processing is elevation-dependent even if the trajectory are perfectly linear (with the exception of the case where both aircrafts follow the same flight line). Terrain elevation can only be ignored at distance very large with respect to the elevation fluctuations, which is only the case in airborne bistatic SAR imaging when the area flown over is extremely flat. We describe here how the monostatic elevation-dependent motion compensation for omega-k algorithm is adapted to bistatic omega-k synthesis algorithm.

Published in:

Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International

Date of Conference:

23-28 July 2007