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Books > Professional & Technical > Other technologies > Marine engineering > Sonar

Underwater Acoustic Channel (Hardcover, 1st ed. 2022): Junying Hui, Xueli Sheng Underwater Acoustic Channel (Hardcover, 1st ed. 2022)
Junying Hui, Xueli Sheng
R3,287 Discovery Miles 32 870 Ships in 10 - 15 working days

This book introduces sonar system and acoustic channel model, average energy channel, coherent multipath channel, the theoretical basis for the stochastic time-varying space-variant channel, slowly time-varying coherent multipath channel, and reverberation channel. Based on the basic theory of underwater acoustic channels and the various characteristics of the marine acoustic environment factor, this textbook aims to help students understand the impact of the marine acoustic channel on the sonar system. It helps students to grasp underwater acoustic signal processing principles and obtain the ability to solve practical problems in underwater acoustic channel engineering. Finally, it aims at laying a foundation for the further sonar system design. This textbook is recommended for graduate or undergraduate students in the field of sonar signal processing, underwater acoustic engineering, as well as some related subjects of marine technology.

Signal Detection Theory (Hardcover): Vyacheslav P. Tuzlukov Signal Detection Theory (Hardcover)
Vyacheslav P. Tuzlukov
R2,458 Discovery Miles 24 580 Ships in 12 - 17 working days

The problem of noise immunity is a key problem for complex signal processing systems research in science and engineering. New approaches to such problems allow the development of a better quality of signal detection in noise.

This book is devoted to a new generalized approach to signal detection theory. The main purpose is to present the basic fundamental concepts of the generalized approach to signal processing in noise and to show how it may be applied in various areas of signal processing. The generalized approach allows extension of the well-known boundaries of the potential noise immunity set up by classical and modern signal detection theories. New approaches for construction of detectors with the amplitude, frequency, and phase tracking systems based on the generalized approach are presented.

Features and Topics:

* New approaches to the statistical theory of signal detection

* New features of signal detection based on experimental study

* More rigorous definition of potential noise immunity

* Chapter summaries and an analsys of recent observations obtained by computer modeling and experiment

* Particularly useful applications for detection problems in radar, communications, wireless communications, acoustics, remote sensing, sonar, underwater signal processing, geophysical signal processing, and biomedical signal processing.

The book is an excellent resource for understanding and solving problems in modern signal detection theories. Professionals, scientists, engineers, and researchers in electrical engineering, computer science, geophysics, and applied mathematics will benefit from using the techniques presented.

Sonar Signal Processing (Hardcover): Richard O. Nielsen Sonar Signal Processing (Hardcover)
Richard O. Nielsen
R3,694 Discovery Miles 36 940 Ships in 10 - 15 working days

This discussion of sonar signal processing bridges a number of related fields, including acoustic propagation in the medium, detection and estimation theory, filter theory, digital filtering, sensor array processing, spectral analysis, fast transforms and digital signal processing. The book begins with a discussion of the topics of analogue signalling conditioning, digital filtering, and the calculation of the discrete Fourier transform. Other topics discussed include analogue filters and analogue-to-digital conversion, finite impulse and infinite impulse response digital filters, and multirate processing techniques. The book is aimed at sonar, seismic processing, acoustic and radar engineers as well as graduate students.

Radar Imaging of Airborne Targets - A Primer for Applied Mathematicians and Physicists (Paperback): Brett Borden Radar Imaging of Airborne Targets - A Primer for Applied Mathematicians and Physicists (Paperback)
Brett Borden
R1,820 Discovery Miles 18 200 Ships in 12 - 17 working days

Radar-based imaging of aircraft targets is a topic that continues to attract a lot of attention, particularly since these imaging methods have been recognized to be the foundation of any successful all-weather non-cooperative target identification technique. Traditional books in this area look at the topic from a radar engineering point of view. Consequently, the basic issues associated with model error and image interpretation are usually not addressed in any substantive fashion. Moreover, applied mathematicians frequently find it difficult to read the radar engineering literature because it is jargon-laden and device specific, meaning that the skills most applicable to the problem's solution are rarely applied. Enabling an understanding of the subject and its current mathematical research issues, Radar Imaging of Airborne Targets: A Primer for Applied Mathematicians and Physicists presents the issues and techniques associated with radar imaging from a mathematical point of view rather than from an instrumentation perspective. The book concentrates on scattering issues, the inverse scattering problem, and the approximations that are usually made by practical algorithm developers. The author also explains the consequences of these approximations to the resultant radar image and its interpretation, and examines methods for reducing model-based error.

An Introduction to Sonar Systems Engineering (Hardcover, 2nd edition): Lawrence J. Ziomek An Introduction to Sonar Systems Engineering (Hardcover, 2nd edition)
Lawrence J. Ziomek
R4,803 Discovery Miles 48 030 Ships in 12 - 17 working days

Discusses linear, planar, and volume array theory; including near-field and far-field beam patterns, beam steering, and array focusing Presents the twin-line planar array and a linear array of triplets which are solutions to the port/starboard (left/right) ambiguity problem associated with linear towed arrays Explains the fundamentals of side-looking (side-scan) and synthetic-aperture sonars Examines the signal design of CW, LFM, and HFM pulses for range and Doppler estimation Explains the fundamentals of underwater acoustic communication signals such as MFSK, MQAM, and OFDM signals Discusses bistatic scattering for moving platforms with derivations of exact solutions for the time delay, time-compression/time-expansion factor, and Doppler shift at a receiver for both the scattered and direct acoustic paths Discusses target detection in the presence of reverberation and noise

Sonar for Practising Engineers 3e (Paperback, 3rd Edition): A. D. Waite Sonar for Practising Engineers 3e (Paperback, 3rd Edition)
A. D. Waite
R1,715 Discovery Miles 17 150 Ships in 12 - 17 working days

The aims of the book - written by a practising engineer for practising engineers - are to provide an understanding of the basic principles of sonar and, to develop formulae and "rules of thumb" for sonar design and performance analysis. Ashley Waite uses his long experience in the design, trials and performance analysis of sonar systems to provide practical guidance and solutions to problems encountered by sonar engineers and technicians.

The books divides into the following parts:

  • Equipment parameters: the motion of sound in an elastic medium; definitions of sound intensity and source level; the use of projector arrays to increase the source level; the use of hydrophone arrays to improve the signal to noise ratio of a wanted sound.
  • The propagation of sound in the sea and the backgrounds to detection: spreading and absorption losses; propagation modes and simple modelling; noise and reverberation; the sonar equations
  • Practical sonar systems: passive and active sonar systems; passive broadband, narrowband, intercept and communications (as a special case of intercept) sonars; active sonars for the detection of submarines, mines and torpedoes.
Sonar for Practising Engineers, third edition, covers all aspects of sonar systems and has extensive worked examples. No prior knowledge of sonar is assumed and the physical principles and mathematics will be readily understood by engineers, technicians and students of underwater acoustics. New to this edition, are end-of-chapter exercises and solutions for self assessment and training.
Radar Imaging of Airborne Targets - A Primer for Applied Mathematicians and Physicists (Hardcover): Brett Borden Radar Imaging of Airborne Targets - A Primer for Applied Mathematicians and Physicists (Hardcover)
Brett Borden
R4,989 Discovery Miles 49 890 Ships in 12 - 17 working days

Radar-based imaging of aircraft targets is a topic that continues to attract a lot of attention, particularly since these imaging methods have been recognized to be the foundation of any successful all-weather non-cooperative target identification technique. Traditional books in this area look at the topic from a radar engineering point of view. Consequently, the basic issues associated with model error and image interpretation are usually not addressed in any substantive fashion. Moreover, applied mathematicians frequently find it difficult to read the radar engineering literature because it is jargon-laden and device specific, meaning that the skills most applicable to the problem's solution are rarely applied. Enabling an understanding of the subject and its current mathematical research issues, Radar Imaging of Airborne Targets: A Primer for Applied Mathematicians and Physicists presents the issues and techniques associated with radar imaging from a mathematical point of view rather than from an instrumentation perspective. The book concentrates on scattering issues, the inverse scattering problem, and the approximations that are usually made by practical algorithm developers. The author also explains the consequences of these approximations to the resultant radar image and its interpretation, and examines methods for reducing model-based error.

Radar Principles (Hardcover, New): PZ Peebles Radar Principles (Hardcover, New)
PZ Peebles
R5,727 Discovery Miles 57 270 Ships in 12 - 17 working days

A comprehensive introduction to radar principles

This volume fills a need in industry and universities for a comprehensive introductory text on radar principles. Well-organized and pedagogically driven, this book focuses on basic and optimum methods of realizing radar operations, covers modern applications, and provides a detailed, sophisticated mathematical treatment. Author Peyton Z. Peebles, Jr., draws on an extensive review of existing radar literature to present a selection of the most fundamental topics. He clearly explains general principles, such as wave propagation and signal theory, before advancing to more complex topics involving aspects of measurement and tracking. The last chapter provides a self-contained treatment of digital signal processing, which can be explored independently. Ample teaching and self-study help is incorporated throughout, including:

  • Numerous worked-out examples illustrating radar theory
  • Many end-of-chapter problems
  • Hundreds of illustrations, including system block diagrams, demonstrating how radar functions are achieved
  • Appended review material and useful mathematical formulas
  • An extensive bibliography and references.

Radar Principles is destined to become the standard text on radar for graduate and senior-level courses in electrical engineering departments as well as industrial courses. It is also an excellent reference for engineers who are typically required to learn radar principles on the job, and for anyone working in radar-related industries as well as in aerospace and naval research.

Blip, Ping, and Buzz - Making Sense of Radar and Sonar (Hardcover): Mark Denny Blip, Ping, and Buzz - Making Sense of Radar and Sonar (Hardcover)
Mark Denny
R822 Discovery Miles 8 220 Ships in 12 - 17 working days

Have you ever wondered how stealth planes achieve "invisibility," how sunken ships are found, or how fishermen track schools of fish in vast expanses of ocean? Radar and sonar echolocation -- a simple matter of sending, receiving, and processing signals.

Weaving history with simple science, Mark Denny deftly reveals the world of radar and sonar to the curious reader, technology buff, and expert alike. He begins with an early history of the Chain Home radar system used during World War II and then provides accessible and engaging explanations of the physics that make signal processing possible. Basic diagrams and formulas show how electromagnetic and sound waves are transmitted, received, and converted into images, allowing you to literally see in the dark.

A section on bioacoustic echolocation, with a focus on the superior sonar systems of bats and whales and a discussion of the advanced technology of next-generation airborne signal processors, opens the imagination to fascinating possibilities for the future.

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