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Appl Opt. 2004 Jul 1;43(19):3874-92.

Amplitude-modulated laser imager.

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  • 1Electro-Optics and Special Mission Sensors Division, Naval Air Warfare Center, Naval Air Systems Command, 22347 Cedar Point Road, Patuxent River, Maryland 20670-1161, USA.


Laser systems have been developed to image underwater objects. However, the performance of these systems can be severely degraded in turbid water. We have developed a technique using modulated light to improve underwater detection and imaging. A program, Modulated Vision System (MVS), which is based on a new theoretical approach, has been developed to predict modulated laser imaging performance. Experiments have been conducted in a controlled laboratory environment to test the accuracy of the theory as a function of system and environmental parameters. Results show a strong correlation between experiment and theory and indicate that the MVS program can be used to predict future system performance.

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