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Proceedings Paper

On A Clear Day You Can See Forever
Author(s): Sherman Karp
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Paper Abstract

The problem of communicating between a subsurface terminal and one above the ocean surface is investigated. A multiple scattering model developed by Heggestad and Arnush is modified to characterize the propagation in the ocean environment. Good agreement with data is observed over a fairly large range of values. The surface effects are investigated and the effects of wave motion are incorporated. By linearizing Snell 's law a working model for transmission through the air-sea interface is developed which is accurate out to zenith angles of +45°. Calculations are presented which indicate that in 10 meter water a low data rate (100 bps) communication system is feasible to depths of several hundred feet on the downlink and from a depth of 100 feet on the uplink, both employing a stationary satellite. Some component development would be necessary in the area of wide field of view narrowband filters.

Paper Details

Date Published: 10 November 1975
PDF: 10 pages
Proc. SPIE 0064, Ocean Optics IV, (10 November 1975); doi: 10.1117/12.954499
Show Author Affiliations
Sherman Karp, Naval Electronics Laboratory Center (United States)


Published in SPIE Proceedings Vol. 0064:
Ocean Optics IV

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