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"This book provides comprehensive coverage of the detection and processing of signals in underwater acoustics. Background material on active and passive sonar systems, underwater acoustics, and statistical signal processing makes the book a self-contained and valuable resource for graduate students, researchers, and active practitioners alike. Signal detection topics span a range of common signal types including signals of known form such as active sonar or communications signals; signals of unknown form, including passive sonar and narrowband signals; and transient signals such as marine mammal vocalizations. This text, along with its companion volume on beamforming, provides a thorough treatment of underwater acoustic signal processing that speaks to its authors broad experience in the field."

"Digital sonar design in underwater acoustics principles and applications, provides comprehensive and up-to-date coverage of research on sonar design, including the basic theory and techniques of digital signal processing, basic concept of information theory, ocean acoustics, underwater acoustic signal propagation theory, and underwater signal processing theory. This book discusses the general design procedure and approaches to implementation, the design method, system simulation theory and techniques, sonar tests in the laboratory, lake and sea, and practical validation criteria and methods for digital sonar design. ;"

"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 presents cutting-edge research papers in the field of Underwater System Technology in Malaysia and Asia in general. The topics covered include intelligent robotics, novel sensor technologies, control algorithms, acoustic signal processing, imaging techniques, biomimetic robots, green energy sources, and underwater communication backbones and protocols. The book showcases some of the latest technologies and applications developed to facilitate local marine exploration and exploitation. It also addresses related topics concerning the Sustainable Development Goals (SDG) outlined by the United Nations. "

"ABSTRAK Laut Indonesia yang kaya situs kapal karam merupakan berkah sekaligus menjadi masalah. Kasus pencurian Benda Berharga Asal Muatan Kapal Tenggelam (BMKT) di perairan Indonesia telah berlangsung sejak awal perkembangan arkeologi bawah laut di era tahun 1970-an, dan masih berlangsung hingga hari ini. Melihat potensi dan permasalahan Cagar Budaya Bawah Air yang semakin mengkhawatirkan, maka sangat diperlukan landasan hukum yang kuat dan langkah nyata untuk melindunginya. Ketika hukum dan peraturan perundang-undangan Cagar Budaya Bawah Air tidak cukup kuat untuk melindunginya, maka Indonesia yang kaya Benda Cagar Budaya Bawah Air akan banyak kehilangan data sejarah. Tulisan ini akan mengulas peraturan perundang-undangan yang terkait dengan Cagar Budaya Bawah Air berikut permasalahan hukumnya serta menawarkan beberapa poin kritik yang dapat dijadikan acuan dalam merevisi peraturan perundang-undangan tersebut dan melangkah ke depan dalam rangka melindungi Cagar Budaya Bawah Air.

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ABSTRACT

The Indonesian watersterritory which is rich in shipwreck sites is both a blessing and a problem. The case of theft on valuable objects from the sinking ship cargo in Indonesian waters has been going on since the beginning of the development of underwater archeology in the era of the 1970s, and still continues to recent day. Considering potential threats of Indonesian underwater cultural heritage, a strong legal basic and concrete steps are needed for protecting them. Without the strong law enforcement, Indonesia will lose most of its valuable historical data. This paper will review the laws and regulations related to underwater cultural heritage along with legal issues and offer some points of criticism that can be used as a reference in revising these laws and regulations and moving forward in order to protect underwater cultural heritage.

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