Last edited by Micage
Wednesday, December 2, 2020 | History

3 edition of Impact of littoral environmental variability of acoustic predictions and sonar performance found in the catalog.

Impact of littoral environmental variability of acoustic predictions and sonar performance

Impact of littoral environmental variability of acoustic predictions and sonar performance

  • 259 Want to read
  • 6 Currently reading

Published by Kluwer in Dordrecht, Boston .
Written in English

    Subjects:
  • Underwater acoustics -- Environmental aspects.,
  • Ocean bottom.

  • Edition Notes

    Statementedited by Nicholas G. Pace and Finn B. Jensen.
    ContributionsPace, N. G., Jensen, Finn, 1937-
    Classifications
    LC ClassificationsQC242.2 .I55 2002
    The Physical Object
    Paginationxi, 620 p. :
    Number of Pages620
    ID Numbers
    Open LibraryOL21801456M
    ISBN 101402008163
    LC Control Number2002031631

    SACLANT Conference on the Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Lerici, Italy, Kluwer Academic Publishers, pp McDonald, Mark A., John Calambokidis, Arthur M. Teranishi, and John A. Hildebrand. The acoustic calls of blue whales off California with gender data. J. Acoust. A significant issue in sonar system evaluation is the pre-diction of array performance in littoral regions where signifi-cant ocean variability is present. In this respect, the ability to simulate sensor array performance in controlled but realistic synthetic ocean environments can represent a significant con-. Because acoustic propagation, especially at low frequencies, is dictated by the nature of the physical environment, knowledge of the environment is fundamental to the performance of antisubmarine warfare (ASW) systems. Much of the existing knowledge is quite mature and is incorporated into the training of Navy sonar operators.


Share this book
You might also like
Lotta on Troublemaker Street.

Lotta on Troublemaker Street.

Questioning Ramayanas

Questioning Ramayanas

DESCRIPTION AND RESULTS OF THE 2000 NIST/NOAA INTERLABORATORY COMPARISON EXERCISE PROGRAM FOR ORGANIC CONTAMINANTS AND TRACE ELEMENTS IN...

DESCRIPTION AND RESULTS OF THE 2000 NIST/NOAA INTERLABORATORY COMPARISON EXERCISE PROGRAM FOR ORGANIC CONTAMINANTS AND TRACE ELEMENTS IN...

Effects of fouling and corrosion on heat transfer in heat rejection systems

Effects of fouling and corrosion on heat transfer in heat rejection systems

Defining federal and state roles in unemployment insurance

Defining federal and state roles in unemployment insurance

Mind magic

Mind magic

Church and the secular order in Reformation thought.

Church and the secular order in Reformation thought.

60 years with Indians and settlers on Lake Winnipeg

60 years with Indians and settlers on Lake Winnipeg

New Wave Quilt Collections II (Excellence of Excellences)

New Wave Quilt Collections II (Excellence of Excellences)

Birnbaums Canada.

Birnbaums Canada.

Early aircraft

Early aircraft

An accurate and impartial narrative of the war

An accurate and impartial narrative of the war

Report of the Local Government Finance Subcommittee to the Tax Advisory Council.

Report of the Local Government Finance Subcommittee to the Tax Advisory Council.

Two centuries of typefounding

Two centuries of typefounding

Space, the next Renaissance

Space, the next Renaissance

Impact of littoral environmental variability of acoustic predictions and sonar performance Download PDF EPUB FB2

The fundamental problems associated with environmental 1 variability and sonar were explored at a previous SACLANTCEN conference in These problems have not gone away but, on the one hand are exaggerated by the move to the littoral and on the other hand, are open to treatrnent in new ways that advances in technology and computer power allow.

Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance. Editors: Pace, Nicholas G., Jensen, Finn B. (Eds.) Free Preview. Buy Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance: NHBS - Edited By: Nicholas G Pace and Finn B Jensen, Springer Nature About Help Blog Jobs Established NHBS GmbH Covid Environmental adaptive sonar control in a tactical setting; W.L.J.

Fox, et al. Transfer of uncertainties through physical-acoustical-sonar and end-to-end systems: A conceptual basis; A.R. Robinson, et al. Sonar performance predictions incorporating environmental variability. TY - BOOK. T1 - Impact of littoral environmental variability on acoustic predictions and sonar performance.

AU - Pace, NG. AU - Jensen, FB. PY - Y1 - N2 - The limiting influence of the environment on sonar has long been recognised as a major challenge to science and by: Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance的话题 (全部 条) 什么是话题 无论是一部作品、一个人,还是一件事,都往往可以衍生出许多不同的话题。.

Abbot, P. and Dyer, I., “Sonar Performance Predictions Incorporating Environmental Variability,” in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance.

Pace, Impact of littoral environmental variability of acoustic predictions and sonar performance book G and Jensen, Finn B. eds., Kluwer Academic Publishers ().

Realistic sonar performance predictions are served by understanding the causes of temporal and spatial fluctuations in the environment [ ].

The summer shelfbreak PRIMER exercise [ ] provided a high resolution environmental acoustics data set that we use to study the temporal variability of noise and acoustic transrnissions. The prediction of sonar performance using a probability density function (PDF) based on environmental variability is presented.

The PDF describes the distribution of the predictive capability of an acoustic model with respect to measurements of actual performance and, therefore, represents the uncertainty in one’s ability to model the actual.

environmental variability Figure 1 illustrates conceptually sonar performance prediction, and how environmental uncertainty is incorporated into what we call “predictive probability of detection”, or PPD. The environmental PDF shown in the figure is, for a given environment, derived in our studies comparing model predictions with acoustic data.

Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance. Springer Netherlands. Lynch, A. Fredricks, You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read.

Whether you've loved the book or not, if you give your honest and. Impact of littoral environmental variability on acoustic predictions and sonar performance This book and the enclosed CD-ROM are the proceedings of a conference organised by the SACLANT Undersea Research Centre, and held at the Villa Marigola, Lerici, Italy, on September The fundamental problems associated with environmental.

The littoral environment can be highly variable on multiple scales in space and time, and sonar performance can be affected by these inherent variabilities. Uncertainties arise in estimates of oceanic and acoustic fields from imperfect measurements (data errors), imperfect models (model errors), and environmental variabilities not explicitly known.

Becker and G. Frisk, “ Effects of sound speed fluctuations due to internal waves in shallow water on horizontal wave number estimates,” in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, edited by N.

Pace and F. Jensen (Kluwer, Dordrecht, ). Google Scholar Crossref; R. a conference entitled "Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Perform-ance" [8].

Dyer and Abbot contributed the only paper on the statistical analysis of sonar detection range. They used a chi-square probability density function to fit the transmission loss data and a normal distribution.

Get this from a library. Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance. [Nicholas G Pace; Finn B Jensen] -- The limiting influence of the environment on sonar has long been recognised as a major challenge to science and technology.

As the area of interest shifts towards the littoral, environmental. Heaney and H. Cox, “ Rapid geoacoustic characterization for limiting environmental uncertainty for sonar system performance prediction,” in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, edited by N.

Pace and F. Jensen (Kluwer Academic, Dordrecht, ), pp. – track has proven effective in discriminating sonar induced apparent acoustic variability from environmental variability.

A multisector and multi-frequency transmission scheme Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Jensen, !. The impact of seabed variability on acoustic predictions can be studied by analyzing fundamental acoustic measures that control seabed interaction: the seabed reflec-tion coefficient and scattering strength.

These two quantities, in principle, permit study of the seafloor independent of oceanographic variability. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Automatic environmentally adaptive sonar control in littoral regions characterized by high spatial/temporal acoustic variability is an important operational need.

An acoustic model-based sonar conroller requires an accurate model of how the sonar would perform in the current environment while in any of its. Nicholas G. Pace and Finn B. Jensen, Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Kluwer ().

Michael B. Porter, Martin Siderius, and William A. Kuperman, High Frequency Ocean Acoustics, AIP (). Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance ().

The acoustic properties of the ocean environment can thus be estimated from signals received after propagation through the waveguide. Measurement of the vertical coherence is a useful tool to understand the effect of sound propagation in ocean waveguide.1–5) The vertical coherence is strongly related to.

de Moustier, Christian and Gallaudet, T C., "Detection of Sonar Induced Measurement Uncertainties in Environment Sensing: A Case Study with the Torodial Volume Search Sonar" (). Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance.

Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance and Publisher Springer. Save up to 80% by choosing the eTextbook option for ISBN:The print version of this textbook is ISBN:The associated strong distortion of the density field has a severe impact on acoustic signaling (Apel et al., ; Chin-Bing et al., ; Warn-Varnas et al., ; Sridevi et al., ).

Their. [1] Ferla C.M., and F.B. Jensen, Are current Environmental Databases adequate for sonar predictions in shallow-water?, in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, ed.

N.G. Pace and F.B. Jensen, Kluwer Academic, pg The Instrumented Tow Cable (ITC) measures the temperature variability of the water column with a spatial resolution of ½ meter along the cable and a temporal resolution on the order of seconds.

The effects of environmental variability on acoustic propagation and sonar performance in shallow water has received much attention in recent literature. Of particular interest is the influence of water column variability on acoustic propagation and the subsequent effects on geoacoustic inversion.

In this paper, a modal-based inversion method is considered with the inclusion of internal waves. Peter C. Chu, Carlos J. Cintron, Steven D. Haeger, David Schneider, Ruth E.

Keenan, Daniel N. Fox, Yellow Sea Acoustic Uncertainty Caused by Hydrographic Data Error, Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance, /, (), ().

Page - In Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, edited by NG Pace and FB Jensen (Kluwer. Appears in 6 books from Less. 1. Introduction.

The sea surface parameters change drastically from the poles to the equator (), which has a significant impact on underwater acoustics and the ambient noise in the region (Ainsley,Nicholas et al., ).Ambient noise variability due to spatiotemporal variations of sea surface parameter is a challenge for ensuring optimum performance of underwater systems at the.

A number of environmental parameters can have strong impacts on mine warfare operations. These factors, discussed below, can affect operations directly, as with the influence of currents on diver operations and sediment transport, or they can influence sensor performance, as is the case for water column and seafloor acoustic properties.

sonar performance prediction requires modeling the acoustic field evolution. In the littoral environment, the time and space scales relevant for such predictions can be minutes to a week and hundreds of meters to tens of kilometers.

The parameters include the 4. primary factors limiting the performance of these types of MCM hunting and classification sonar predictions for a frequency of 20 kHz while the lower panel shows predictions for kHz. Volume Impact of Littoral Environmental Variability Publishers, Netherlands.

“Adjoint-Assisted Inversion for Shallow-Water Environment Parameters”, in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Eds. Nicholas G. Pace and Finn B. Jensen, Kluwer (). Tiemann, C.O., M. Porter (). “A comparison of modal, beam, and PE modeled replicas for.

performance of this model, as in all models, is determined by the accuracy of its inputs such as sea surface conditions, bathymetry, bottom type, and sound speed profiles.

Here, the effect of sound speed errors (i.e., hydrographic errors) on the acoustic uncertainty in the Yellow Sea is investigated using CASS/GRAB. 2 Environment of the Yellow Sea. N.G. Pace, Finn B. Jensen (Eds.), Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Kluwer Academic Publishers, Dordrecht, The Netherlands () Google Scholar.

The importance of estimating compressional wave properties in saturated marine sediments is well known in geophysics and underwater acoustics. As part of the ONR sponsored Geoclutter program,in situ acoustic measurements were obtained using ISSAP (In situ Sound Speed and Attenuation Probe), a device developed and built by the Center for Coastal and Ocean Mapping (CCOM).

(1) Chu, P.C., E.L. Gottshall, and T. Halwachs, Environmental effects on Naval warfare simulations. NPS-IJWA, Institute of Joint Warfare Analysis, Naval. In Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, edited by N.G.

Pace and F.B. Jensen (Kluwer, The Netherlands, ) pp. [3] K.M. Becker, Effects of sound speed fluctuations in the water column on geoacoustic parameter.Fig Multi-scale environmental assessment. Typical sonar system performance is dependent on the acoustic environment variability over a wide range of scales (horizontal scales are shown in the diagram).

Optimal environmental assessment is thus a compromise between conflicting requirements of coverage and resolution. By targeting areas of high.[7] Holland, C.W., Intra and inter-regional geoacoustic variability in the littoral, in Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Lerici, Italy ed.

by N. Pace and F. Jensen, (Invited).