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Proceedings Paper

True amplitude BiSAR image reconstruction via backprojection and image domain scaling
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Paper Abstract

We consider a bistatic synthetic aperture radar (BiSAR) system operating in non-ideal imaging conditions with receive and transmit antennas traversing arbitrary flight trajectories over a non-flat topography; transmitting arbitrary waveforms along flight trajectories etc. In1 we developed a generalized filtered-backprojection (GFBP) method for BiSAR image formation applicable to such non-ideal imaging scenarios. The method puts edges not only at the right location and orientation, but also at the right strength resulting in true amplitude images. The main computational complexity of the GFBP method comes from the spatially dependent filtering step. In this work, we present an alternative, novel FBP method applicable to non-ideal imaging scenarios resulting in true amplitude images. The method involves ramp filtering in data domain and image domain scaling. Additionally, the method results in fast, computationally efficient implementation than that of GFBP methods.

Paper Details

Date Published: 29 April 2009
PDF: 7 pages
Proc. SPIE 7307, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications VI, 73070E (29 April 2009); doi: 10.1117/12.818618
Show Author Affiliations
Can Evren Yarman, WesternGeco-Schlumberger (United States)
Birsen Yazici, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 7307:
Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications VI
Daniel J. Henry, Editor(s)

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