Journal
IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS
Volume 50, Issue 4, Pages 411-419Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0001433814040185
Keywords
imaging systems; light beams; transfer functions; signal; coherent processing; underwater objects
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Funding
- Russian Foundation for Basic Research [11-05-00384, 13-05-97059]
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The optical transfer functions of underwater imaging systems that use narrow beams modulated by a complex high-frequency signal to form an image are studied. Images of simple objects observed with the use of such systems are calculated. The image distortions caused by the interference of modulation waves are estimated, and a method for eliminating these distortions is proposed. The potential for improving the image quality through the application of complexly modulated illumination beams is demonstrated using explicit calculations.
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