UNDERWATER ACOUSTICS

SEY508

Course Code: SEY508
Semester: -
Theory+Practice: 3 + 0
ECTS: 10

Course Type

Elective Course

Course Level

Master's Degree With Thesis

Year of Study

Semester

ECTS

Name of Lecturer(s)

Learning Outcomes

At the end of this course, the students;

Physical properties of water base, estimation methods based on measurement, propagation of sound waves.
Mathematical models in underwater sound propagation; ray, mode, multiple path, parabolic approach.
Pitting and noise in sound propagation.

Mode of Delivery

Face to face

Prerequisites

Recommended Optional Programme Components

None

Course Description

The aim of the course is to provide some basic understanding about sonar systems, from wet-end transducer subsystems to dry-end components (digitization, signal processing etc.). A general view of different sonar types and processing architectures will be given. Theoretical background of conventional passive and active sonar systems will be studied and some acoustic demonstrations (using standard microphones and speakers) will be made following the theoretical discussions. A general understanding and methods of prediction for certain performance metrics for each subsystem (tranducers, amplifiers, array processing, detector and tracker) will also be provided. Consequently a system design approach for both hardware and software components of a sonar system will be followed throughout the course.

Course Contents

WEEK	TOPICS
1^st Week	Fundamental Concepts
2^nd Week	Transducers
3^rd Week	Signal Processing/General View of a Sonar Signal Processing Cycle
4^th Week	A Short Review of Digital Signal Processing, Probability and Random Processes, Discrete Transforms and Multi-rate Processing
5^th Week	A Short Review of Digital Signal Processing, Probability and Random Processes, Discrete Transforms and Multi-rate Processing
6^th Week	Introduction to Array Processing
7^th Week	Introduction to Array Processing
8^th Week	MIDTERM
9^th Week	Introduction to Detection Theory
10^th Week	Introduction to Detection Theory
11^th Week	Active Sonar Processing
12^th Week	Active Sonar Processing
13^th Week	Introduction to Tracking
14^th Week	Introduction to Tracking

Recommended or Required Reading

Transducers
R. O. Nielsen, Sonar Signal Processing, Artech House, 1991.
R. J. Urick, Principles of Underwater Sound. McGraw-Hill, 3rd ed., 1983.
M. A. Ainslie,Principles of Sonar Performance Modeling, Springer, Praxis Publishing, 2010.
R. P. Hodges, Underwater Acoustics, Analysis, Design and Performance of Sonar, Wiley, 2010.
A. V. Oppenheim, R. W. Schafer, J. R. Buck, ?Discrete Time Signal Processing, Prentice Hall, 3rd ed., 2010.
C. W. Therrien, Discrete Random Signals and Statistical Signal Processing, Prentice Hall, 1992.

Planned Learning Activities and Teaching Methods

Lecture

Assessment Methods and Criteria

	Quantity	Percentage (%)
Mid-term	1	20
Assignment	1	15
Project	1	25
Total(%)		60
Contribution of In-term Studies to Overall Grade(%)		60
Contribution of Final Examination to Overall Grade(%)		40
Total(%)		100

ECTS Allocated Based on Student Workload

Activities	Quantity	Duration (Hour)	Total Workload (Hour)
Midterm exam	1	2	2
Preparation for Quiz
Individual or group work	14	9	126
Preparation for Final exam	1	50	50
Course hours	14	3	42
Preparation for Midterm exam	1	25	25
Laboratory (including preparation)
Final exam	1	2	2
Homework	1	10	10
Project	1	40	40
Total Work Load			297
Total Work Load / 30 (h)			9.9
ECTS Credit of the Course			10

Language of Instruction

Turkish

Work Placement(s)

Programme Qualifications / Learning Outcomes

	LO1	LO2	LO3
K1	X
K2			X
K3		X
K4		X
K5	X	X
K6	X
K7	X
K8		X
K9		X
K10	X		X
K11	X		X