Title :
Random sampling strategies in multistatic SAR
Author :
Coker, Jonathan D. ; Tewfik, Ahmed H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN
fDate :
March 31 2008-April 4 2008
Abstract :
We introduce and investigate the concept of random sampling to the problem of image reconstruction in a multistatic SAR system. We first develop an appropriate figure of merit for the invertibility of the measurement data. We then show numerical simulations of a particular random measurement process under various parameters and compare the performance of this random sampling to that of the sampling given by a deterministic elliptical transform. We expose new connections between SAR processing and random matrix theory, and develop a fundamental result relating image quality to SAR system parameters for this mode.
Keywords :
Radon transforms; image reconstruction; linear algebra; radar theory; synthetic aperture radar; image reconstruction; multistatic SAR; numerical simulations; random sampling strategies; Extraterrestrial measurements; Image quality; Image reconstruction; Image sampling; Matrix decomposition; Noise measurement; Particle measurements; Reflectivity; Sampling methods; Tomography; Radon transforms; Synthetic aperture radar; tomography;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518146