Abstract
This article presents an extension of the simultaneous receiver-transmitter scanned holographic system which recently has been described in the literature.8 Such a system shows promise in probing large, uncontrolled media such as the ocean, and could therefore become a new technological tool for underwater exploration. This paper reports a computer study simulating the operation of such a system.
Using a mathematical model of the system, scaled down in size for laboratory conditions, a hologram of single-point scatterer was simulated on a digital computer. Various distortions and limitations revealed by the computed data are described and discussed.
A computer program was also used to optimize a transmitting phased array for the system. The array consists of a number of short cylindrical elements placed end to end to form a long, thin radiator.
The overall results indicate that good holograms can be produced with the system. We therefore plan further work using a digital computer coupled to an appropriate display device to process the sampled holographic information obtained from a laboratory model of such a system. This would provide the system with a near real-time capability.
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We acknowledge our gratitude to Mr. K. Keyani of our laboratory for his. assistance in preparing these photographs.
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© 1971 Plenum Press, New York
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Wade, G., Wollman, M., Wang, K. (1971). A Holographic System for Use in the Ocean. In: Metherell, A.F. (eds) Acoustical Holography. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8210-6_13
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DOI: https://doi.org/10.1007/978-1-4615-8210-6_13
Publisher Name: Springer, Boston, MA
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