On A Clear Day You Can See Forever

Sherman Karp

doi:10.1117/12.954499

10 November 1975 On A Clear Day You Can See Forever

Sherman Karp

Proceedings Volume 0064, Ocean Optics IV; (1975) https://doi.org/10.1117/12.954499
Event: 19th Annual Technical Symposium, 1975, San Diego, United States

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.

Citation Download Citation

Sherman Karp "On A Clear Day You Can See Forever", Proc. SPIE 0064, Ocean Optics IV, (10 November 1975); https://doi.org/10.1117/12.954499

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