Acousto-optic time- and space-integrating spotlight-mode SAR processor

Michael W. Haney; James J. Levy; Robert R. Michael Jr.

doi:10.1117/12.157126

17 September 1993 Acousto-optic time- and space-integrating spotlight-mode SAR processor

Michael W. Haney, James J. Levy, Robert R. Michael Jr.

Proceedings Volume 1958, Transition of Optical Processors into Systems 1993; (1993) https://doi.org/10.1117/12.157126
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The technical approach and recent experimental results for the acousto-optic time- and space- integrating real-time SAR image formation processor program are reported. The concept overcomes the size and power consumption limitations of electronic approaches by using compact, rugged, and low-power analog optical signal processing techniques for the most computationally taxing portions of the SAR imaging problem. Flexibility and performance are maintained by the use of digital electronics for the critical low-complexity filter generation and output image processing functions. The results include a demonstration of the processor's ability to perform high-resolution spotlight-mode SAR imaging by simultaneously compensating for range migration and range/azimuth coupling in the analog optical domain, thereby avoiding a highly power-consuming digital interpolation or reformatting operation usually required in all-electronic approaches.

Citation Download Citation

Michael W. Haney, James J. Levy, and Robert R. Michael Jr. "Acousto-optic time- and space-integrating spotlight-mode SAR processor", Proc. SPIE 1958, Transition of Optical Processors into Systems 1993, (17 September 1993); https://doi.org/10.1117/12.157126

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