Browsing Reprints by Subject "Environmental acoustics"
Now showing items 1-13 of 13
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A direct digital acquisition system
(NATO. SACLANTCEN, 1972/05) -
A review of oceanic fronts
(NATO. SACLANTCEN, 1975/10)This paper will start with a brief account of oceanic frontal research. The definition of oceanic and acoustic fronts and the distinction between them will be discussed. Examples of frontal structure dynamics, correlation ... -
A wave-theoretic method for estimating the effects of internal tides on acoustic wave transmission
(NATO. SACLANTCEN, 1975/10)The effect of the first mode semidiurnal internal tide on a ducttype sound speed profile was approximated by varying the minimum velocity of the parabolic profile in a sinusoidal fashion with a period of 12.42 hours. The ... -
Acoustic effects of internal microstructure
(NATO. SACLANTCEN, 1975/10) -
Digital acoustical processing at Woods Hole Oceanographic Institution
(NATO. SACLANTCEN, 1972/05) -
Internal oceanographic microstructure phenomena
(NATO. SACLANTCEN, 1975/10)This paper is concerned with the nature and causes of both fine structure and microstructure in the ocean. Following an account of the acoustic/oceanographic background to subject, the characteristics of fine structure are ... -
Oceanic layered microstructure and fronts
(NATO. SACLANTCEN, 1971/12)This talk is divided into two parts: one deals with oceanic microstructure, with particular attention to the so-called "layered microstructure"; the other part is concerned with oceanic fronts. As an example of the latter ... -
Oceanic-acoustic experiments at SACLANTCEN
(NATO. SACLANTCEN, 1971/12)Last year, at the Director's suggestion, a project in oceanicacoustics was set up at the Centre with scientists from at least 3 groups playing some part in the planning and execution of experiments. The p roject represents ... -
On-board real-time assessment of acoustic environmental parameters relevant to the estimation of sonar performance for autonomous underwater vehicles
(CMRE, 2019/05)CMRE is evaluating the use of autonomous robots for the detection and tracking of underwater targets. Robotic detection and localization comes with many challenges, not the least of which is the requirement to maximize the ... -
Some acoustic effects of internal macrostructure
(NATO. SACLANTCEN, 1975/10)Some recent experimental developments relating to internal oceanographic- acoustic interactions are reviewed. Besides amplitude and phase fluctuations, a major concern is scattering into shadow regions. Associated oceanographic ... -
Some effects of large-scale oceanography on acoustic propagation
(NATO. SACLANTCEN, 1975/10)A propagation experiment was conducted along a great circle track in the North American Basin, beginning at a point 400 km north of Antigua, W.I. and ending at the Grand Banks of Newfoundland. Shallow explosive sources ... -
Stochastic methods of sound-field computation
(NATO. SACLANTCEN, 1975/10) -
The ARL shipborne computer system
(NATO. SACLANTCEN, 1972/05)