Ocean Acoustics detailed syllabus for Electronics & Telecommunication Engineering (ETE) for 2021 regulation curriculum has been taken from the Anna Universities official website and presented for the ETE students. For course code, course name, number of credits for a course and other scheme related information, do visit full semester subjects post given below.
For Electronics & Telecommunication Engineering 6th Sem scheme and its subjects, do visit ETE 6th Sem 2021 regulation scheme. For Professional Elective-V scheme and its subjects refer to ETE Professional Elective-V syllabus scheme. The detailed syllabus of ocean acoustics is as follows.
Course Objectives:
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Unit I
FUNDAMENTALS OF UNDERWATER ACOUSTICS
Ocean Acoustic environment; Measuring sound levels and relevant units; Sound propagation in the ocean – sound velocity profiles in the deep water and shallow water; Sound attenuation in the sea -absorption, scattering, transmission loss, reverberation, Snell’s law, target strength;SONAR systems- active, passive SONAR equations and system parameters.
Unit II
UNDERWATER ACOUSTIC TRANSDUCERS AND DEVICES
Principles of transduction and SONAR transducer design; Electromechanical Analog circuits, coupling coefficient, efficiency, Directivity characteristics of receivers, frequency response characteristics of transducers, Transducer measurement techniques; Physical geometry of arrays -linear, planar, cylindrical, spherical, beam patterns, array gain.
Unit III
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Unit IV
PROCESSING OF UNDERWATER ACOUSTIC SIGNALS AND IMAGES
Representations of the signals – Fourier representations, Spatial filtering; Matched filters and Autocorrelations, Temporal resolution; Signal to Noise Ratio, Estimation of Auto Covariance, Cross Covariance; Power spectra of different Underwater Signals, Classification of signals; Concept and Types of beamforming techniques; Image segmentation, Filtering, Equalization and Restoration
Unit V
UNDERWATER ACOUSTIC INSTRUMENTS AND ITS APPLICATION
Principles of Sonar systems, Echosounder – single beam, multi beam; Side scan sonars – Imaging, Underwater acoustic camera; Sub bottom profilers -Sediment classification; Acoustic modem -Tsunami systems; Acoustic Positioning system- Transponders, USBL, SSBL systems, HiPAP; Underwater telephone; Underwater noise recorders; Underwater Beacons.
Practical Exercises
- Applying sonar equations in the design of ocean instruments
- Auto correlation and Cross Correlation of underwater signals
- Simulation of transmission loss in the ocean
- Frequency Analysis of underwater ambient noise data
- Comparison of sound velocity gradients for different ocean depths
- Applying digital filters to underwater signal
- Beamforming of vertical linear array data
- Characterization of hydrophones for receiving and transmitting responses
- Acoustic characterization of ship machinery noises
- Acoustic characterization of whale / any marine animal sound
- Underwater image enhancement – filtering
- Underwater image enhancement – color enhancement
Course Outcomes:
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Text Books:
- Robert J Urick, Principles of underwater sound, Third Edition, Peninsula Publishing,2013
- Herman Medwin and Clarence S. Clay, Fundamental of acoustical oceanography, First Edition, Academic Press,1998.
Reference Books:
- L.M. Brekhovskikh and Yu. P. Lysanov,Fundamentals of ocean acoustics, Third Edition, Springer,2003
- John G Proakis and Manolakis, Digital Signal Processing Principles Algorithms and Applications, Fourth Edition, Pearson, 2006.
- Rafael C. Gonzalez, Richard E. Woods, Steven Eddins, —Digital Image Processing using MATLAB, Third Edition, Gatesmark Publishing,2020.
For detailed syllabus of all the other subjects of Electronics & Telecommunication Engineering 6th Sem, visit ETE 6th Sem subject syllabuses for 2021 regulation.
For all Electronics & Telecommunication Engineering results, visit Anna University ETE all semester results direct link.