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 ...



Most published Xplore authors for Sonar

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Xplore Articles related to Sonar

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Recent advances in algorithmic learning theory of the Kanban cell neuron network

Colin James The 2013 International Joint Conference on Neural Networks (IJCNN), 2013

A novel algorithm of learning is defined as the Kanban cell neuron model (KCNM). The analysis captures the salient properties of the concrete application of the associated look up table (LUT). The purpose of this system is to foster a structure for machine cognition. The Kanban cell (KC) forms the basis of mapping human neurons into logical networks. The Kanban ...


Exploitation of antenna directivity for compressed indoor radar imaging with ghost suppression

Ali Hussain Muqaibel IET Radar, Sonar & Navigation, 2016

The impulse-responses of ultra-wideband antennas vary with the angles of transmission and arrival. In urban radar applications, unless exploited, this directivity degrades the localisation accuracy and defocusses the imaged targets. Moreover, multipath reflections caused by surrounding walls result in ghosts that appear in the indoor radar images. Compressive sensing (CS) is needed to attain the high image resolution with reduced ...


Underwater positioning systems for underwater robots using trilateration algorithm

Chatpadol Klungmontri; Itthisek Nilkhamhang; Wutthiphat Covanich; Tsuyoshi Isshiki 2015 6th International Conference of Information and Communication Technology for Embedded Systems (IC-ICTES), 2015

This paper proposes an underwater positioning system (UPS) for remotely operated underwater vehicle (ROV). The system uses two underwater speakers as anchor nodes and a hydrophone as a receiver node. Time-of-arrival (ToA) is locally measured by sensors to identify distances from the hydrophone to the two anchor nodes. Then, using 2-D trilateration algorithm and depth from a pressure sensor, the ...


Steerable Far-field Circular Array

Hai Huyen Dam; S. Nordholm; Siow Yong Low; Kok Lay Teo 2006 Australian Communications Theory Workshop, 2006

Sensor arrays are used in various applications such as radar, sonar, communications, radio links and voice input systems. In this paper, we propose a new variable array structure, which allows array characteristics such as the look direction or the passband/stopband region to be varied easily. Most importantly, these characteristics can be changed by varying only a single steering or tuning ...


Broadband Matched Field Processing

W. S. Hodgkiss; R. K. Brienzo Twenty-Second Asilomar Conference on Signals, Systems and Computers, 1988

First Page of the Article ![](/xploreAssets/images/absImages/00754030.png)


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Educational Resources on Sonar

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eLearning

Recent advances in algorithmic learning theory of the Kanban cell neuron network

Colin James The 2013 International Joint Conference on Neural Networks (IJCNN), 2013

A novel algorithm of learning is defined as the Kanban cell neuron model (KCNM). The analysis captures the salient properties of the concrete application of the associated look up table (LUT). The purpose of this system is to foster a structure for machine cognition. The Kanban cell (KC) forms the basis of mapping human neurons into logical networks. The Kanban ...


Exploitation of antenna directivity for compressed indoor radar imaging with ghost suppression

Ali Hussain Muqaibel IET Radar, Sonar & Navigation, 2016

The impulse-responses of ultra-wideband antennas vary with the angles of transmission and arrival. In urban radar applications, unless exploited, this directivity degrades the localisation accuracy and defocusses the imaged targets. Moreover, multipath reflections caused by surrounding walls result in ghosts that appear in the indoor radar images. Compressive sensing (CS) is needed to attain the high image resolution with reduced ...


Underwater positioning systems for underwater robots using trilateration algorithm

Chatpadol Klungmontri; Itthisek Nilkhamhang; Wutthiphat Covanich; Tsuyoshi Isshiki 2015 6th International Conference of Information and Communication Technology for Embedded Systems (IC-ICTES), 2015

This paper proposes an underwater positioning system (UPS) for remotely operated underwater vehicle (ROV). The system uses two underwater speakers as anchor nodes and a hydrophone as a receiver node. Time-of-arrival (ToA) is locally measured by sensors to identify distances from the hydrophone to the two anchor nodes. Then, using 2-D trilateration algorithm and depth from a pressure sensor, the ...


Steerable Far-field Circular Array

Hai Huyen Dam; S. Nordholm; Siow Yong Low; Kok Lay Teo 2006 Australian Communications Theory Workshop, 2006

Sensor arrays are used in various applications such as radar, sonar, communications, radio links and voice input systems. In this paper, we propose a new variable array structure, which allows array characteristics such as the look direction or the passband/stopband region to be varied easily. Most importantly, these characteristics can be changed by varying only a single steering or tuning ...


Broadband Matched Field Processing

W. S. Hodgkiss; R. K. Brienzo Twenty-Second Asilomar Conference on Signals, Systems and Computers, 1988

First Page of the Article ![](/xploreAssets/images/absImages/00754030.png)


More eLearning Resources

IEEE-USA E-Books

  • Introduction

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

  • 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.

  • Skill Acquisition and Self-Improvement for Environmental Change Adaptation of Mobile Robot

    Learning and development are essential processes for an animat to adapt itself to environmental changes so as to accomplish a given task. This paper proposes a single mechanism for learning and self-improvement that results in learning curves similar to the "U-shape" phenomena observed in several psychological experiments concerning the human learning process such as in language acquisition. The basic idea is that (1) the animat monitors its success rate in goal achievement so as to perceive environmental changes instead of relying on signals from a teacher, and (2) in order to reuse acquired knowledge and accelerate reinforcement learning, the animat does not memorize the action values but transfers only the learned policy. The resultant policy (a state transition map where transitions indicate the best actions) may not be optimal in any given environment but it may be able to better handle differences between environments. We apply this model to a mobile robot navigation problem for which the task is to reach the target while avoiding obstacles by means of uninterpreted sonar and visual information. Our experimental results demonstrate the validity of the model.

  • 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.

  • Matrix CRLB Scaling Due to Measurements of Uncertain Origin

    In many estimation situations, measurements are of uncertain origin. This is best exemplified by the target-tracking situation in which at each scan (of a radar, sonar, or electro-optical sensor), a number of measurements are obtained, and it is not known which, if any, of these is target originated. The source of extraneous measurements can be false alarms-especially in low- SNR situations that force the detector at the end of the signal processing chain to operate with a reduced threshold-or spurious targets. In several earlier papers, the surprising observation was made that the Cramér-Rao lower bound (CRLB) for the estimation of a fixed parameter vector (e.g., initial position and velocity) that characterizes the target motion, for the special case of multidimensional measurements in the presence of additive white Gaussian noise, is simply a multiple of that for the case with no uncertainty. That is, there is a scalar information-reduction factor; this is particularly useful as it allows comparison in terms of a scalar. In this paper, we explore this result to determine how wide the class of such problems is. It turns out to include many non-Gaussian situations. Simulations corroborate the analysis.

  • No title

    Adaptive detection of signals embedded in correlated Gaussian noise has been an active field of research in the last decades. This topic is important in many areas of signal processing such as, just to give some examples, radar, sonar, communications, and hyperspectral imaging. Most of the existing adaptive algorithms have been designed following the lead of the derivation of Kelly's detector which assumes perfect knowledge of the target steering vector. However, in realistic scenarios, mismatches are likely to occur due to both environmental and instrumental factors. When a mismatched signal is present in the data under test, conventional algorithms may suffer severe performance degradation. The presence of strong interferers in the cell under test makes the detection task even more challenging. An effective way to cope with this scenario relies on the use of "tunable" detectors, i.e., detectors capable of changing their directivity through the tuning of proper parameters. The aim o this book is to present some recent advances in the design of tunable detectors and the focus is on the so-called two-stage detectors, i.e., adaptive algorithms obtained cascading two detectors with opposite behaviors. We derive exact closed-form expressions for the resulting probability of false alarm and the probability of detection for both matched and mismatched signals embedded in homogeneous Gaussian noise. It turns out that such solutions guarantee a wide operational range in terms of tunability while retaining, at the same time, an overall performance in presence of matched signals commensurate with Kelly's detector. Table of Contents: Introduction / Adaptive Radar Detection of Targets / Adaptive Detection Schemes for Mismatched Signals / Enhanced Adaptive Sidelobe Blanking Algorithms / Conclusions

  • Global localization and topological map-learning for robot navigation

    This paper describes a navigation system implemented on a real mobile robot. Using simple sonar and visual sensors, it makes possible the autonomous construction of a dense topological map representing the environment. At any time during the mapping process, this system is able to globally localize the robot, i.e. to estimate the robot's position even if the robot is passively moved from one place to another within the mapped area. This is achieved using algorithms inspired by Hidden Markov Models adapted to the on-line building of the map. Advantages and drawbacks of the system are discussed, along with its potential implications for the understanding of biological navigation systems

  • 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

  • Name Index

    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.)

  • Author's Biography

    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.)



Standards related to Sonar

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