Abstract
The time-and-space integrating acoustooptic architecture for real-time synthetic aperture radar (SAR) processing was described previously.1 Techniques have recently been outlined which extend the applicability of this approach to SAR data collection geometries in which a high degree of flexibility is needed.2 We detail these hybrid techniques with particular emphasis on spotlight mode geometry. Electronic programmability empowers the hybrid architecture to compensate on-the-fly for the anomalous effects of range walk, range/azimuth coupling, and spurious or programmed changes in the parameters of the radar/target geometry. Interpolation of the focused image data occurs in the optical domain, thereby maintaining high resolution without a large power-hungry electronic processor. The features of this approach suggest that it is well matched to those real-time programmable SAR processing applications in which size and power are severely constrained.
© 1987 Optical Society of America
PDF ArticleMore Like This
Michael Haney and Demetri Psaltis
TuB4 Optical Computing (IP) 1987
K. T. Stalker, P. A. Molley, M. B. Sandoval, and S. L. Humphreys
TUS2 OSA Annual Meeting (FIO) 1986
Michael W. Haney, Ravindra A. Athale, and Demetri Psaltis
TUA6 OSA Annual Meeting (FIO) 1987