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Proceedings Paper

Performance Analysis Of Optical Synthetic Aperture Radars
Author(s): Dongwook Park; Jeffrey H. Shapiro
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Paper Abstract

A microwave synthetic aperture radar (SAR) exploits coherent target-return processing to achieve an along-track spatial resolution better than its antenna's diffraction limit. It also uses its range resolution capability to enhance its across-track spatial resolution. This paper considers the application of SAR techniques to the optical wavelength-coherent laser radar-regime. It presents performance analysis for optical SARs, focusing on their along-track and across-track spatial resolutions, their carrier-to-noise ratios (CNRs), and their signal-to-noise ratios (SNRs) in a variety of situations. Results are first obtained for performance under ideal operating conditions. Then the effects of laser frequency instability, atmospheric turbulence, and radar-aim errors are factored into the theory. The analysis is illustrated by system performance calculations for optical SARs based on reasonable technology parameters.

Paper Details

Date Published: 18 February 1989
PDF: 17 pages
Proc. SPIE 0999, Laser Radar III, (18 February 1989); doi: 10.1117/12.960229
Show Author Affiliations
Dongwook Park, United Technologies Optical Systems (United States)
Jeffrey H. Shapiro, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0999:
Laser Radar III
Richard J. Becherer, Editor(s)

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