James L. Buchanan, Robert P. Gilbert, Armand Wirgin, Yongzhi Xu
This book presents current research trends in the field of underwater acoustic wave direct and inverse problems. Until very recently, little has been published concerning model-based inversions of the boundaries and material constants of finite-sized targets located either in the water column or the sediments. This text is the first to investigate inverse problems in an ocean environment with a heavy emphasis placed on the description and resolution of the forward scattering problem.
Marine Acoustics: Direct and Inverse Problems emphasizes computation of Green's Functions with new material added for elastic and poro-elastic seabeds. This timely publication addresses many areas of practical interest in connection with underwater acoustical imaging including ecological survey and clean up, protection of open water harbors, offshore petroleum and gas enterprises, as well as environmental and military uses.
The ocean-seabed system is an acoustic waveguide and this is the only book that treats inverse problems in a waveguide. The propagation of acoustic waves in this system is treated for various types of seabeds and the direct and inverse problems are considered in realistic ocean environments. The inverse problem is to determine the shape of an impenetrable or penetrable object, or to determine the coefficients describing the seabed. This is done by acoustically illuminating the seabed and investigating the scattered field.
This book is written with several audiences in mind. Engineers and scientists working in ocean acoustics, military scientists interested in submarine detection and long range underwater communications, and geophysicists involved in locating underwater oil fields will find this book of keen interest. The first chapter is an excellent introduction for the reader who is unacquainted with theoretical acoustics and contains all the physics necessary for the book. When possible the material in other parts of the book is written for the reader wishing to see a mathematically rigorous treatment. When treating the more complicated ocean basement, the material is presented in the style of a theoretical engineer.
Preface; Chapter 1: The Mechanics of Continua; Chapter 2: Direct Scattering Problems; Chapter 3: Inverse Scattering in Ocean Environments; Chapter 4: Oceans Over Elastic Basements; Chapter 5: Shallow Oceans Over Poroelastic Seabeds; Chapter 6: Homogenization of the Seabed and other Asymptotic Methods; Index
2004 / vi + 347 pages / Softcover / ISBN-13: 978-0-898715-47-7 / ISBN-10: 0-89871-547-4
List Price $96.00 / SIAM Member Price $67.20 / Order Code OT84