Title :
Compressed sensing and multistatic SAR
Author :
Coker, Jonathan D. ; Tewfik, Ahmed H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, MN
Abstract :
We demonstrate that the remarkable advantages of compressed sensing remain in force when the information operator is constrained to obey the physical rules of a multistatic SAR measurement. The design guidelines of the SAR information operator for lscr2 reconstructions is compared to those provided for generic lscr1 reconstructions. We report little or no degradation in compression performance when using an information operator obeying SAR sampling constraints. Simulations for a Shepp-Logan image show an image is faithfully reconstructed when the number of measurements is about a third of the number of image pixels, using a minimum total-variation technique. We observed high sensitivity in performance and algorithm convergence to small perturbations in the measurement vectors.
Keywords :
image coding; image sampling; radar imaging; synthetic aperture radar; SAR information operator; SAR sampling constraint; Shepp-Logan image; compressed sensing; compression performance; multistatic SAR measurement; Compressed sensing; Electric variables measurement; Force measurement; Guidelines; Image reconstruction; Image sampling; Pixel; Reflectivity; Synthetic aperture radar; Transmitters; Multistatic synthetic aperture radar; compressed sensing; radar tomography;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4959779