Sonar

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Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in Submarine navigation) to navigate, communicate with or detect other vessels. (Wikipedia.org)






Conferences related to Sonar

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2016 IEEE International Ultrasonics Symposium (IUS)

International Symposium dealing with recent developments on ultrasound, including ultrasound imaging, transducers, non destructuve testing and physical acoustics.

  • 2015 IEEE International Ultrasonics Symposium (IUS)

    Annual meeting of the UFFC Society that is being held regularly. It is focusing on ultrasonics.

  • 2013 IEEE International Ultrasonics Symposium (IUS)

    the joint IUS, ISAF, IFC, and EFTF conference is aimed at bringing the ultrasonics, ferroelectrics, Frequency Control and Time Forum communities around the world together more closely and through discussions on recent research and development of fundamentals, materials, devices, and applications .

  • 2012 IEEE International Ultrasonics Symposium

    The conference will bring together the community of ultrasonics around the world in the center of Europe for discussion and cooperation and to stimulate the research and development in the widespread field of ultrasonic theories and applications

  • 2011 IEEE International Ultrasonics Symposium (IUS)

    The Symposium is aimed at bringing the ultrasonics communities around the world together more closely and through discussions on recent research and development of ultrasonics theories and applications.

  • 2010 IEEE Ultrasonics Symposium (IUS)

    The conference will cover all high frequency Ultrasound application including medical.

  • 2009 IEEE International Ultrasonics Symposium

    Conference includes short courses on topics of current interest in ultrasonics. The next three days will include parallel oral and poster sessions covering 1) Medical Ultrasonics, 2) Sensors, NDE & Industrial Applications, 3) Physical Acoustics, 4) Microacoustics SAW, FBAR, MEMS, and 5) Transducers & Transducer Materials.

  • 2008 IEEE Ultrasonics Symposium

  • 2007 IEEE Ultrasonics Symposium

  • 2006 IEEE Ultrasonics Symposium


OCEANS 2016

The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 500 technical papers and 150 -200 exhibits.

  • OCEANS 2015 - MTS/IEEE Washington

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2014

    The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2013

    Three days of 8-10 tracks of technical sessions (400-450 papers) and concurent exhibition (150-250 exhibitors)

  • OCEANS 2012

    Ocean related technology. Tutorials and three days of technical sessions and exhibits. 8-12 parallel technical tracks.

  • OCEANS 2011

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2010

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2009

  • OCEANS 2008

    The Marine Technology Society (MTS) and the Oceanic Engineering Society (OES) of the Institute of Electrical and Electronic Engineers (IEEE) cosponsor a joint conference and exposition on ocean science, engineering, education, and policy. Held annually in the fall, it has become a focal point for the ocean and marine community to meet, learn, and exhibit products and services. The conference includes technical sessions, workshops, student poster sessions, job fairs, tutorials and a large exhibit.

  • OCEANS 2007

  • OCEANS 2006

  • OCEANS 2005


2014 Joint IEEE International Symposium on the Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM)

This conference covers the development of ferroelectric materials for a wide range of applications, including piezoelectrics, dielectrics, electro-optics, pyroelectrics, flexoelectrics, energy harvesting, non-volatile memory, and logic elements.

  • 2013 Joint IEEE Int'l Symp on Applications of Ferroelectrics & Workshop on Piezoresponse Force Microscopy (ISAF/PFM)

    •Dielectric, piezoelectric and ferroelectric materials•Fundamentals of ferroelectrics and piezoelectrics•Processing of ferroelectric crystals, ceramics and films•Characterisation and properties of ferroelectrics

  • 2012 Joint 21st IEEE ISAF / 11th IEEE ECAPD / IEEE PFM (ISAF/ECAPD/PFM)

    ISAF-ECAPD-PFM aims to provide a forum to present and discuss the state-of-the-art developments in the field of ferroelectrics and related materials and their applications, including novel nanoscale methods of their investigation.

  • 2011 Joint IEEE Int'l Symp on Applications of Ferroelectrics/Int'l Symp on Piezoresponse Force Microscopy & Nanoscale Phenomena in Polar Materials

    The scope of the conference is to provide an international forum to discuss the latest developments in the field of ferroelectrics and related materials and their applications, including theory and modelling, materials preparation and characterization and device physics and processing.

  • 2010 IEEE International Symposium on the Applications of Ferroelectrics (ISAF) & European Conference on the Applications of Polar Dielectrics (ECAPD)

    Reports on the latest developments in the field of ferroelectric materials and their applications.

  • 2009 IEEE International Symposium on the Applications of Ferroelectrics (ISAF)

    The meeting covers a broad range of physics, processing, characterization and applications of ferroelectric and related materials.


OCEANS 2014 - TAIPEI

The OCEANS conference covers all aspects of ocean engineering from physics aspects through development and operation of undersea vehicles and equipment.

  • OCEANS 2013 - NORWAY

    Ocean related technologies. Program includes tutorials, three days of technical papers and a concurrent exhibition. Student poster competition.

  • OCEANS 2012 - YEOSU

    The OCEANS conferences covers four days with tutorials, exhibits and three days of parallel tracks that address all aspects of oceanic engineering.

  • OCEANS 2011 - SPAIN

    All Oceans related technologies.

  • OCEANS 2010 IEEE - Sydney

  • OCEANS 2009 - EUROPE

  • OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean

  • OCEANS 2007 - EUROPE

    The theme 'Marine Challenges: Coastline to Deep Sea' focuses on the significant challenges, from the shallowest waters around our coasts to the deepest subsea trenches, that face marine, subsea and oceanic engineers in their drive to understand the complexities of the world's oceans.


2013 IEEE Digital Signal Processing and Signal Processing Education Meeting (DSP/SPE)

signal processing, sampling, extrapolation, interpolation, modeling, deconvolution, filtering and adaptive systems, time-frequency analysis, multi-dimensional signal processing, image and video processing, distributed signal processing, implementations of signal processing systems


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Periodicals related to Sonar

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Oceanic Engineering, IEEE Journal of

Bayes procedures; buried-object detection; dielectric measurements; Doppler measurements; geomagnetism; sea floor; sea ice; sea measurements; sea surface electromagnetic scattering; seismology; sonar; acoustic tomography; underwater acoustics; and underwater radio communication.


Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control was the number-three journal in acoustics in 2002, according to the annual Journal Citation Report (2002 edition) published by the Institute for Scientific Information. This publication focuses on the theory, design, and application on generation, transmission, and detection of bulk and surface mechanical waves; fundamental studies in physical acoustics; design of sonic ...




Xplore Articles related to Sonar

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Special issue on capturing environmental uncertainty in sonar performance

IEEE Journal of Oceanic Engineering, 2004

Prospective authors are requested to submit new, unpublished manuscripts for inclusion in the upcoming event described in this call for papers.


Principal characteristics of the up-to-date Japanese oceanographic research vessels

K. Kobayashi OCEANS '95. MTS/IEEE. Challenges of Our Changing Global Environment. Conference Proceedings., 1995

The principal requirements of scientific research for medium to large oceanographic vessels for various types of sea-going works of different disciplines are described with particular emphasis on the Hakuho Maru of the Ocean Research Institute, University of Tokyo (100 m long, launched in 1989) and Yokosuka (105 m long, launched in 1990) belonging to JAMSTEC. The former has already accomplished ...


Experimental matched-field localization results using a short vertical array and mid-frequency signals in shallow water

S. B. Suppappola; B. F. Harrison IEEE Journal of Oceanic Engineering, 2004

Traditionally, matched-field processing (MFP) has been used to localize low- frequency sources (e.g., <300 Hz) from their acoustic signals received on long vertical arrays. However, some sources emit acoustic signals of much higher frequency. Applying MFP to signals in the mid-frequency range (e.g., 1-4 kHz) is a very challenging problem because MFP's sensitivity to environmental parameter mismatch becomes more severe ...


Adaptive array beamforming with robust capabilities under random sensor position errors

J. -H. Lee; C. -C. Wang IEE Proceedings - Radar, Sonar and Navigation, 2005

The problem of adaptive array beamforming with multiple-beam constraints in the presence of steering error caused by random sensor position errors is considered. First the statistical relationship between the random sensor position errors and the induced random phase perturbation is derived. Based on the result, a cost function consisting of terms which utilise a posteriori information owing to the received ...


Target Doppler estimation using wideband frequency modulated signals

Y. Doisy; L. Deruaz; S. P. Beerens; R. Been IEEE Transactions on Signal Processing, 2000

The topic of this paper is the design and performance analysis of wideband sonar waveforms capable of estimating both target range and Doppler using as few replicas in the processing as possible. First, it is shown that for conventional Doppler sensitive waveforms, for which the Doppler and delay are uncoupled, the Doppler accuracy is proportional to the reciprocal of the ...


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Educational Resources on Sonar

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eLearning

Special issue on capturing environmental uncertainty in sonar performance

IEEE Journal of Oceanic Engineering, 2004

Prospective authors are requested to submit new, unpublished manuscripts for inclusion in the upcoming event described in this call for papers.


Principal characteristics of the up-to-date Japanese oceanographic research vessels

K. Kobayashi OCEANS '95. MTS/IEEE. Challenges of Our Changing Global Environment. Conference Proceedings., 1995

The principal requirements of scientific research for medium to large oceanographic vessels for various types of sea-going works of different disciplines are described with particular emphasis on the Hakuho Maru of the Ocean Research Institute, University of Tokyo (100 m long, launched in 1989) and Yokosuka (105 m long, launched in 1990) belonging to JAMSTEC. The former has already accomplished ...


Experimental matched-field localization results using a short vertical array and mid-frequency signals in shallow water

S. B. Suppappola; B. F. Harrison IEEE Journal of Oceanic Engineering, 2004

Traditionally, matched-field processing (MFP) has been used to localize low- frequency sources (e.g., <300 Hz) from their acoustic signals received on long vertical arrays. However, some sources emit acoustic signals of much higher frequency. Applying MFP to signals in the mid-frequency range (e.g., 1-4 kHz) is a very challenging problem because MFP's sensitivity to environmental parameter mismatch becomes more severe ...


Adaptive array beamforming with robust capabilities under random sensor position errors

J. -H. Lee; C. -C. Wang IEE Proceedings - Radar, Sonar and Navigation, 2005

The problem of adaptive array beamforming with multiple-beam constraints in the presence of steering error caused by random sensor position errors is considered. First the statistical relationship between the random sensor position errors and the induced random phase perturbation is derived. Based on the result, a cost function consisting of terms which utilise a posteriori information owing to the received ...


Target Doppler estimation using wideband frequency modulated signals

Y. Doisy; L. Deruaz; S. P. Beerens; R. Been IEEE Transactions on Signal Processing, 2000

The topic of this paper is the design and performance analysis of wideband sonar waveforms capable of estimating both target range and Doppler using as few replicas in the processing as possible. First, it is shown that for conventional Doppler sensitive waveforms, for which the Doppler and delay are uncoupled, the Doppler accuracy is proportional to the reciprocal of the ...


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IEEE-USA E-Books

  • No title

    Recent advances in sensor technology and information processing afford a new flexibility in the design of waveforms for agile sensing. Sensors are now developed with the ability to dynamically choose their transmit or receive waveforms in order to optimize an objective cost function. This has exposed a new paradigm of significant performance improvements in active sensing: dynamic waveform adaptation to environment conditions, target structures, or information features. The manuscript provides a review of recent advances in waveform-agile sensing for target tracking applications. A dynamic waveform selection and configuration scheme is developed for two active sensors that track one or multiple mobile targets. A detailed description of two sequential Monte Carlo algorithms for agile tracking are presented, together with relevant Matlab code and simulation studies, to demonstrate the benefits of dynamic waveform adaptation. The work will be of interest not only to practitioners of rada and sonar, but also other applications where waveforms can be dynamically designed, such as communications and biosensing. Table of Contents: Waveform-Agile Target Tracking Application Formulation / Dynamic Waveform Selection with Application to Narrowband and Wideband Environments / Dynamic Waveform Selection for Tracking in Clutter / Conclusions / CRLB Evaluation for Gaussian Envelope GFM Chirp from the Ambiguity Function / CRLB Evaluation from the Complex Envelope

  • A Statistical Theory of Reception

    This IEEE Classic Reissue provides at an advanced level, a uniquely fundamental exposition of the applications of Statistical Communication Theory to a vast spectrum of important physical problems. Included are general analysis of signal detection, estimation, measurement, and related topics involving information transfer. Using the statistical Bayesian viewpoint, renowned author David Middleton employs statistical decision theory specifically tailored for the general tasks of signal processing. Dr. Middleton also provides a special focus on physical modeling of the canonical channel with real-world examples relating to radar, sonar, and general telecommunications. This book offers a detailed treatment and an array of problems and results spanning an exceptionally broad range of technical subjects in the communications field. Complete with special functions, integrals, solutions of integral equations, and an extensive, updated bibliography by chapter, An Introduction to Statistical Communication Theory is a seminal reference, particularly for anyone working in the field of communications, as well as in other areas of statistical physics. (Originally published in 1960.)

  • Introduction

    This chapter contains sections titled: The Definition of a Conformal Antenna Why Conformal Antennas? History Metal Radomes Sonar Arrays References

  • Medical Ultrasonic Imaging

    This chapter contains sections titled: Echolocation, Sonar for Submarine Detection, Echoes from the Body, Basic Equipment, Health Effects, Conclusion, Review Questions, Problems

  • Towards a theory of how bats navigate through foliage

    In this paper we study echolocation by spectral analysis as a possible mechanism used by bats to navigate through their natural environment. We simulate the echo signals received by a bat inspired sonar system confronted with realistic reflectors, i.e. a large number of closely spaced scatterers. We propose a method to localize such natural reflectors on the basis of the time-frequency representation of the returned echo that is calculated by the bat's cochlea. The sonar system is simplified into a piston emitter and two piston receivers, of which the latter can be rotated. The method proposed reconstructs the environment by comparing the returned echoes with predefined templates corresponding with echoes from different angles. We show that the overlap between members of this set of templates can be used as a measure of their accuracy for localization purposes. This method is then applied to both monaural and binaural sonar systems and is shown to allow useful navigation behaviour. The problem of ghost images, i.e. erroneous interpretations of ambiguous position estimates, is shown to be inherent to single measurement based decisions. Finally, we show how active control of the ear configuration allows binaural sonar systems to eliminate ghost images by combining the resuits from a sequence of measurements, each corresponding with a well chosen ear configuration. Despite the description in this paper being restricted to the two-dimensional situation, this is not essential and we discuss how the mechanism described can be straightforwardly extended to the full 3D case.

  • Barankin Bound for Range and Doppler Estimation Using Orthogonal Signal Transmission

    In this paper, the Barankin bound for performance evaluation of target range and Doppler estimation by an active radar (or sonar) is derived. The Barankin bound is analyzed for two signal cases: pulse train with identical (coherent) signals between pulses, and pulse train with orthogonal coded signals. At high pulse repetition frequencies (PRF's), identical signal transmission results in high sidelobes in the ambiguity function, while orthogonal signal transmissions allows to reduce the sidelobes and the ambiguity level. The Barankin bound is shown to be an efficient tool for system analysis in the presence of ambiguities. It is shown that for the identical signals case, the threshold signal-to-noise ratio (SNR) predicted by the Barankin bound is higher than the orthogonal signals case. The results are accompanied by maximum likelihood (ML) simulations which show that the Barankin bound predicts the threshold SNR with a good accuracy. It is shown that at high SNR's, the Barankin bound, the Cramér-Rao bound and the ML coincide.

  • Sonars, Lasers, and Cameras: Complex Sensors

    This chapter contains sections titled: Ultrasonic or Sonar Sensing, Laser Sensing, Visual Sensing

  • Biomimetic Integration of Neural and Acoustic Signal Processing

    This chapter contains sections titled: Introduction Biomimetic Sonar Heads: State of the Art Biomimetic Antenna Shapes Ultrasonic Transducer Technology Actuation Neuromorphic Signal Processing Future Trends Acknowledgments References

  • From Bat Pinnae to Sonar Antennae: Augmented Obliquely Truncated Horns as a Novel Parametric Shape Model

    Biosonar systems operating in air (bats) use intricate baffle shapes for shaping the sonar beam pattern. Because of its relative ease of implementation, beamforming with such baffle shapes is also an attractive solution for enhancing the sonar-sensing capabilities of animats. The work presented here introduces a novel family of parametric, biologically inspired, baffle-shapes for sonar sensors: augmented obliquely truncated horns. The structural features of these shapes are: an obliquely truncated horn, a washboard ripple pattern on its inner surface, and a pin-shaped flap ("tragus") partially occluding the aperture through which sound enters the baffle. Shapes generated by this model can be completely controlled with 22 parameters. Numerical methods to generate representations of these shapes, evaluate their acoustic properties, and visualize the results are described. The investigated acoustical system properties are: directivity pattern, shape of iso-gain surfaces in three dimensions and gain contours on planar cuts through the spatial distribution of the gain. The last property (cuts) serves as a representation of the shape of a sonar spotlight shone onto an extended target of relatively low curvature. The results demonstrate that ripple and tragus have a profound impact on the functional properties of the baffle shapes. The most prominent effects include breaking of symmetry and generation of side lobes in different frequency bands. The two features have been shown offer the opportunity to shape the spatial distribution of receiver gain into a large number of profoundly different configurations. Evidence of interactions between the features indicates that a combination of both features may generate system properties inaccessible through any one feature alone. The tool-chain of numerical methods used in the present work establishes a foundation for f uture investigations of performance measures to be used in optimizing the baffle shapes for a particular task.

  • Biomimetic Sonar Processing: From Dolphin Echolocation to Artificial Neural Networks

    Analysis of animal performance can provide important cues about the design of automated artificial biomimetic systems. On the basis of behavioral observations, we have been developing models of dolphin echolocation ability that have applicability to the design of biomimetic sonar systems. A dolphin was trained to perform an echolocation delayed matching-to-sample task. The clicks the animal generated during task performance were recorded and digitized along with the echoes returned by the stimulus objects. The dolphin's performance was then modeled using artifical neural networks.



Standards related to Sonar

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No standards are currently tagged "Sonar"