APPLIED UNDERWATER ACOUSTICS

Applied Underwater Acoustics meets the needs of scientists and engineers working in underwater acoustics and graduate students solving problems in, and preparing theses on, topics in underwater acoustics. The book is structured to provide the basis for rapidly assimilating the essential underwater acoustic knowledge base for practical application to daily research and analysis.

Each chapter of the book is self-supporting and focuses on a single topic and its relation to underwater acoustics. The chapters start with a brief description of the topic's physical background, necessary definitions, and a short description of the applications, along with a roadmap to the chapter. The subtopics covered within individual subchapters include most frequently used equations that describe the topic. Equations are not derived, rather, assumptions behind equations and limitations on the applications of each equation are emphasized. Figures, tables, and illustrations related to the sub-topic are presented in an easy-to-use manner, and examples on the use of the equations, including appropriate figures and tables are also included.

Autorentext
Thomas H. Neighbors III, PhD was a Chief Scientist at Leidos Corporation before retiring. Before Leidos split from SAIC he was a Vice President/Chief Scientist at SAIC and before that he was president of Falcon Associates. His publications span the spectrum from acousto-optics to nonlinear underwater acoustics to theory and scale model experiments on anomalous sea surface reverberation.

For over a decade Dr. Neighbors was an Adjunct Physics Professor at Georgetown University and twice was a visiting professor at the Technical University of Denmark. He has given keynote papers and invited lectures at conferences on Sea Surface Sound, Underwater Acoustics, and Hydroacoustics. In the past he participated on scientific advisory panels and committees such as the International Conferences on Underwater Acoustic Measurements: Technology & Results and the Waterside Security Conferences. Dr. David Bradley is Senior Scientist and Professor of Acoustics at the Applied Research Laboratory, The Pennsylvania State University, State College, PA, USA. He received a Bachelor's Degree in physics from Michigan Technological University in 1960, a Master's Degree in Physics from Michigan State University in 1963, and a Doctorate in Mechanical Engineering from the Catholic University of America in 1970. His research focuses on underwater acoustic propagation, scattering from complex ocean boundaries and ambient noise in the sea. Dr. Bradley has served as director of the NATO Underwater Research Center, La Spezia, Italy; superintendent of the Acoustics Division of the Naval Research Laboratory; and mine warfare technical adviser to the Chief of Naval Operations. Dr. Bradley's seminal contributions to the field of acoustics have been recognized with many awards and leadership positions within the ASA. They include the Meritorious Civilian Service Award, 1982; and Superior Civilian Service Award, in 1993 from the Department of the Navy. In the ASA he served as chair of the Underwater Acoustics Technical Committee, 1988-1991; on the Executive Council 1991 to 1992; as associate editor 1997-2001, and as chair, Medals and Awards Committee, 2003-2010. He was President of the Acoustical Society of America (ASA), 2012-2013.

Inhalt

1. General Characteristics of the Underwater Environment
2. Sound Propagation
3. Sound Propagation Modeling
4. Absorption of Sound in Seawater
5. Scattering of Sound
6. Ambient Noise
7. Shallow-Water Acoustics
8. The Seafloor
9. Inverse Methods in Underwater Acoustics
10. Sonar Systems
11. Signal Processing
12. Bio- and Fishery Acoustics
13. Finite-Amplitude Waves
14. Underwater Acoustic Measurements and Their Applications