[PDF] Underwater Sound Propagation In The Straits Of Florida The Mimi Lunar Cycle Receptions eBook

Author : Raymond L. Veenkant
Publisher :
Page : 156 pages
File Size : 34,60 MB
Release : 1972
Category :
ISBN :

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The study is part of a continuing program of underwater sound propagation research called project MIMI. The report covers reception and processing and a limited number of analytic comments. The test timing and duration were chosen to allow closer examination of propagation anomalies previously observed during the early winter and to obtain continuous data on an entire lunar-tide cycle (approximately 28 days). The major objectives were to provide data for the design of more extensive experiments and to test the programs and techniques associated with the LINC-8 computer. Signal processing was designed to yield both multipath information and data on anomalous path conditions. The principal success of the study has been in the improvement of processing programs and experiment design. (Author).

Author : Richard M. Heitmeyer
Publisher :
Page : 215 pages
File Size : 41,90 MB
Release : 1972
Category :
ISBN :

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An underwater acoustic propagation experiment was conducted during the month of November 1970 as part of the Project MIMI propagation and signal processing research program. A periodic broadband signal, modulating a 420 HZ carrier was transmitted continuously across the Straits of Florida for 19 days. At the receiving site, the power and phase angle of the carrier, the power in the signal sidebands, and the noise power in the signal band were measured. In addition, the total power and the power spectrum in a narrow band about the carrier line were determined as a measure of the modulation due to the forward-scattered surface reverberation. Finally, the correlation of the received signal with a stored reference was computed to measure the multipath structure and its stability. This report presents a brief description of the acoustical range, the experiment, and the preliminary analysis of the data. (Author).

Author : Margaret F. Werts
Publisher : Springer Science & Business Media
Page : 670 pages
File Size : 16,16 MB
Release : 2012-12-06
Category : Social Science
ISBN : 1468461869

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This volume is the third annotated bibliography on this subject area to be compiled by these authors. The first, published by Gordon and Breach, Science Publishers, in 1971, was entitled AN ANNOTATED BIBLIOGRAPHY ON DIVING AND SUBMARINE MEDICINE. It covered material published during the 1960's. The second volume, entitled UNDERWATER MEDICINE AND RELATED SCIENCES: A GUIDE TO THE LITERATURE, published in 1973 by Plenum Press, covered primarily material published during 1970 and 1971, with some material from 1968 and 1969. The present volume covers material published during 1972 and 1973, but here again some earlier material has been included. The purpose of these annotated bibliographies is to make available a large proportion of the published material, in abstract form, indexed in such a manner as to make it possible to compile a reasonably complete annotated bibliography on any specific subject area in the field. It is possible thus to learn where the work is being done, by whom, and how extensively. Also, it becomes obvious what areas of research are lacking or inadequate. These specific searches can also form a background of reference material on which to base further research, or from which to write monographs or state-of-the-art surveys. Papers, articles and reports listed here are in most cases readily available.