Download or read book Array Element Localization for an Autonomous Drifting Line Array written by Caren M. Gallaudet and published by . This book was released on 2001 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Acoustic and Non Acoustic Methods of Vertical Line Array Element Localization written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: SWellEx-3 (Shallow Water evaluation cell Experiment 3) was conducted in July 1994 west of Point Loma in 200-m water. During the experiment, a MPL 64-element, 120-m aperture vertical array was deployed on the ocean bottom from the RIP FLIP. Located 2 m above the shallowest array element was a self-recording package equipped with depth, tilt, and direction-of-tilt sensors, thereby permitting array element localization (AEL) to be performed nonacoustically. In addition, AEL was performed acoustically using two different approaches. The first approach made use of transponder pings (in the vicinity of 12 kHz) received by high-frequency hydrophones spaced every 7.5 m along the vertical array. The second approach was based on a self-cohering technique where matched-field processing was performed on a low-frequency, multitone (50-200 Hz) sound source being towed at various ranges and azimuths from the array. The focus of this paper is on a comparison of the time-evolving array shape estimates generated by these three different methods. As shown, all three provide a consistent picture of array motion throughout the 6 hour period analyzed.

Download or read book Oceans 2001 MTS IEEE written by and published by . This book was released on 2001 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Master s Theses Directories written by and published by . This book was released on 2002 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".

Download or read book Conference Proceedings written by and published by . This book was released on 1998 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ADS MNT and FET Array Element Localization Analysis and Results written by and published by . This book was released on 2000 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate array element localization (AEL) is an important component of optimizing the detection performance of bottom-mounted acoustic arrays. Use of the nominal element positions can lead to significant degradations in beamforming performance when the array has been subject to real-world deployment methods. Methods of accurately estimating array element positions using both overt and covert methods have been developed by the Advanced Deployable System (ADS) program, and were used during the ADS Fleet Evaluation Test (FET) and Multi-Node Test (MNT). 'FET' henceforth is used to denote both the FET and the MNT. During FET, data were collected for AEL analysis. This report first explains the AEL algorithms used, and then presents AEL results for the 18 arrays deployed during FET. The algorithm generally achieves an accuracy on the order of 0.5 meters when using acoustic data with a bandwidth of 150 Hz.

Download or read book Oceans 90 Conference Proceedings written by and published by . This book was released on 1990 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oceans 2003 written by and published by . This book was released on 2003 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oceans 92 written by and published by . This book was released on 1992 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commerce Business Daily written by and published by . This book was released on 1998-05 with total page 1902 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creating Autonomous Vehicle Systems written by Shaoshan Liu and published by Morgan & Claypool Publishers. This book was released on 2017-10-25 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first technical overview of autonomous vehicles written for a general computing and engineering audience. The authors share their practical experiences of creating autonomous vehicle systems. These systems are complex, consisting of three major subsystems: (1) algorithms for localization, perception, and planning and control; (2) client systems, such as the robotics operating system and hardware platform; and (3) the cloud platform, which includes data storage, simulation, high-definition (HD) mapping, and deep learning model training. The algorithm subsystem extracts meaningful information from sensor raw data to understand its environment and make decisions about its actions. The client subsystem integrates these algorithms to meet real-time and reliability requirements. The cloud platform provides offline computing and storage capabilities for autonomous vehicles. Using the cloud platform, we are able to test new algorithms and update the HD map—plus, train better recognition, tracking, and decision models. This book consists of nine chapters. Chapter 1 provides an overview of autonomous vehicle systems; Chapter 2 focuses on localization technologies; Chapter 3 discusses traditional techniques used for perception; Chapter 4 discusses deep learning based techniques for perception; Chapter 5 introduces the planning and control sub-system, especially prediction and routing technologies; Chapter 6 focuses on motion planning and feedback control of the planning and control subsystem; Chapter 7 introduces reinforcement learning-based planning and control; Chapter 8 delves into the details of client systems design; and Chapter 9 provides the details of cloud platforms for autonomous driving. This book should be useful to students, researchers, and practitioners alike. Whether you are an undergraduate or a graduate student interested in autonomous driving, you will find herein a comprehensive overview of the whole autonomous vehicle technology stack. If you are an autonomous driving practitioner, the many practical techniques introduced in this book will be of interest to you. Researchers will also find plenty of references for an effective, deeper exploration of the various technologies.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ambient Noise in the Sea written by Robert J. Urick and published by . This book was released on 1984 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science Abstracts written by and published by . This book was released on 1995 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Planning Algorithms written by Steven M. LaValle and published by Cambridge University Press. This book was released on 2006-05-29 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planning algorithms are impacting technical disciplines and industries around the world, including robotics, computer-aided design, manufacturing, computer graphics, aerospace applications, drug design, and protein folding. Written for computer scientists and engineers with interests in artificial intelligence, robotics, or control theory, this is the only book on this topic that tightly integrates a vast body of literature from several fields into a coherent source for teaching and reference in a wide variety of applications. Difficult mathematical material is explained through hundreds of examples and illustrations.

Download or read book Introduction to AI Robotics second edition written by Robin R. Murphy and published by MIT Press. This book was released on 2019-10-01 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of artificial intelligence algorithms and programming organization for robot systems, combining theoretical rigor and practical applications. This textbook offers a comprehensive survey of artificial intelligence (AI) algorithms and programming organization for robot systems. Readers who master the topics covered will be able to design and evaluate an artificially intelligent robot for applications involving sensing, acting, planning, and learning. A background in AI is not required; the book introduces key AI topics from all AI subdisciplines throughout the book and explains how they contribute to autonomous capabilities. This second edition is a major expansion and reorganization of the first edition, reflecting the dramatic advances made in AI over the past fifteen years. An introductory overview provides a framework for thinking about AI for robotics, distinguishing between the fundamentally different design paradigms of automation and autonomy. The book then discusses the reactive functionality of sensing and acting in AI robotics; introduces the deliberative functions most often associated with intelligence and the capability of autonomous initiative; surveys multi-robot systems and (in a new chapter) human-robot interaction; and offers a “metaview” of how to design and evaluate autonomous systems and the ethical considerations in doing so. New material covers locomotion, simultaneous localization and mapping, human-robot interaction, machine learning, and ethics. Each chapter includes exercises, and many chapters provide case studies. Endnotes point to additional reading, highlight advanced topics, and offer robot trivia.