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Author : Dionysios Makris
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (64 download)
Download or read book Real-time Scheduling and Synchronization for the NPS Autonomous Underwater Vehicle written by Dionysios Makris and published by . This book was released on 1991 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brent Lee Leatherman
Publisher :
ISBN 13 :
Total Pages : 69 pages
Book Rating : 4.:/5 (14 download)
Download or read book An Approach to Integration of Real-time Software for an Autonomous Underwater Vehicle written by Brent Lee Leatherman and published by . This book was released on 1991 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Naval Postgraduate School (NPS) is currently involved in a long term project to investigate and develop real-time software for command and control of Autonomous Underwater Vehicles (AUV). In support of this goal, NPS is currently designing and fabricating a testbed AUV. This thesis describes the design development, and testing of a real-time scheduling software package to act as the top layer of control software for the AUV. Also discussed are the various real-time scheduling policies available along with the features of the assigned operating systems that allow the implementation of the scheduler.
Author : Yang Xiao
Publisher : CRC Press
ISBN 13 : 1420067125
Total Pages : 352 pages
Book Rating : 4.4/5 (2 download)
Download or read book Underwater Acoustic Sensor Networks written by Yang Xiao and published by CRC Press. This book was released on 2010-05-19 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed review of underwater channel characteristics, Underwater Acoustic Sensor Networks investigates the fundamental aspects of underwater communication. Prominent researchers from around the world consider contemporary challenges in the development of underwater acoustic sensor networks (UW-ASNs) and introduce a cross-layer approach for effec
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461524539
Total Pages : 391 pages
Book Rating : 4.4/5 (615 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the though that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemi nation. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 37 (thesis year 1992) a total of 12,549 thesis titles from 25 Canadian and 153 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 37 reports theses submitted in 1992, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Author :
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 690 pages
Book Rating : 4.F/5 ( download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1730 pages
Book Rating : 4.3/5 (243 download)
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald P Brutzman
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (232 download)
Download or read book NPS AUV Integrated Simulator written by Donald P Brutzman and published by . This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and testing of Autonomous Underwater Vehicle (AUV) hardware and software is greatly complicated by vehicle inaccessibility during operation. Integrated simulation remotely links vehicle components and support equipment with graphics simulation workstations, allowing complete real-time, pre-mission, pseudo-mission and post-mission visualization and analysis in the lab environment. Integrated simulator testing of software and hardware is a broad and versatile method that supports rapid and robust diagnosis and correction of system faults. This method is demonstrated using the Naval Postgraduate School (NPS) AUV. High-resolution three-dimensional graphics workstations can provide real-time representations of vehicle dynamics, control system behavior, mission execution, sensor processing and object classification. Integrated simulation is also useful for development of the variety of sophisticated artificial intelligence applications needed by an AUV. Examples include sonar classification using an expert system and path planning using a circle world model. The flexibility and versatility provided by this approach enables visualization and analysis of all aspects of AUV development. Integrated simulator networking is recommended as a fundamental requirement for AUV research and deployment. Autonomous underwater vehicles, Graphics, Simulation, Path planning, Sonar classification, Expert systems, Real-Time operating systems.
Author : Donald P. Brutzman
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (33 download)
Download or read book NPS AUV Integrated Simulation written by Donald P. Brutzman and published by . This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and testing of Autonomous Underwater Vehicle (AUV) hardware and software is greatly complicated by vehicle inaccessibility during operation. Integrated simulation remotely links vehicle components and support equipment with graphics simulation workstations, allowing complete real-time, pre-mission, pseudo-mission and post-mission visualization and analysis in the lab environment. Integrated simulator testing of software and hardware is a broad and versatile method that supports rapid and robust diagnosis and correction of system faults. This method is demonstrated using the Naval Postgraduate School (NPS) AUV. High-resolution three-dimensional graphics workstations can provide real-time representations of vehicle dynamics, control system behavior, mission execution, sensor processing and object classification. Integrated simulation is also useful for development of the variety of sophisticated artificial intelligence applications needed by an AUV. Examples include sonar classification using an expert system and path planning using a circle world model. The flexibility and versatility provided by this approach enables visualization and analysis of all aspects of AUV development. Integrated simulator networking is recommended as a fundamental requirement for AUV research and deployment. Autonomous underwater vehicles, Graphics, Simulation, Path planning, Sonar classification, Expert systems, Real-Time operating systems.
Author : Donald P. Brutzman
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (232 download)
Download or read book NPS AUV Integrated Simulator written by Donald P. Brutzman and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and testing of Autonomous Underwater Vehicle (AUV) hardware and software is greatly complicated by vehicle inaccessibility during operation. Integrated simulation remotely links vehicle components and support equipment with graphics simulation workstations, allowing complete real-time, pre-mission, pseudo-mission and post-mission visualization and analysis in the lab environment. Integrated simulator testing of software and hardware is a broad and versatile method that supports rapid and robust diagnosis and correction of system faults. This method is demonstrated using the Naval Postgraduate School (NPS) AUV. High-resolution three-dimensional graphics workstations can provide real-time representations of vehicle dynamics, control system behavior, mission execution, sensor processing and object classification. Integrated simulation is also useful for development of the variety of sophisticated artificial intelligence applications needed by an AUV. Examples include sonar classification using an expert system and path planning using a circle world model. The flexibility and versatility provided by this approach enables visualization and analysis of all aspects of AUV development. Integrated simulator networking is recommended as a fundamental requirement for AUV research and deployment. Autonomous underwater vehicles, Graphics, Simulation, Path planning, Sonar classification, Expert systems, Real-Time operating systems.
Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (227 download)
Download or read book A Real Time Autonomous Underwater Vehicle Dynamic Simulator written by and published by . This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NPS Autonomous Underwater Vehicle Simulator is a joint project between the Naval Postgraduate School's Mechanical Engineering and Computer Science Departments. In order to test mission planning and execution software, an accurate vehicle dynamic model is required. Using dynamics based upon the Navy's Swimmer Delivery Vehicle (SDV), there is a need to continually update the hydrodynamic coefficients based upon actual vehicle-in-water testing. The NPS AUV Dynamic Simulator contains a full set of submarine equations of motion and hydrodynamic coefficients. The coefficients are modifiable on-line, and a replay capability exists for further performance review. Using Monterey Bay as an underwater testing environment, there is need to be able to display expansive terrain data while maintaining the real time simulation. The Variable Terrain Resolution Algorithm incorporated into the NPS AUV Dynamic Simulator enables the entire Monterey Bay data base to be displayed in real time. Resolution adjustments are made automatically based upon the vehicle's depth level and system performance.
Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (318 download)
Download or read book Current Developments in Underwater Vehicle Control and Navigation: The NPS ARIES AUV. written by and published by . This book was released on 2000 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides an overview of the Naval Postgraduate School ARIES autonomous underwater vehicle. An attempt is made to highlight its' current operational capabilities and provide a description of future enhancements for greater mission utility and flexibility. An overview of the vehicle design along with descriptions of all major hardware components and sensors is given. A major discussion of the implementation of a modular, multi-rate, multi-process software architecture for the ARIES is provided. The architecture is designed to operate using a single computer processor or two independent, cooperating processors linked through a network interface for improved load balancing. A dual computer implementation is presented here since each processor assumes different tasks for mission operation. Also included is a section on the underwater navigation method used. It involves the use of a real-time extended Kalman filter that fuses all sensor data and computes the real time position, orientation, velocity, etc., of the vehicle. Issues of navigational accuracy of the filter are also discussed. The work concludes with a discussion of using the ARIES as a communications server in a multi-vehicle environment. It is proposed to use the ARIES as a mobile communications relay between a command and control station on the surface and multiple vehicles operating below. The advantages of using a mobile relay over fixed buoys are discussed.
Author : Christopher Magrino
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (64 download)
Download or read book Three Dimensional Guidance for the NPS Autonomous Underwater Vehicle written by Christopher Magrino and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael John Cloutier
Publisher :
ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (782 download)
Download or read book Guidance and Control System for an Autonomous Underwater Vehicle written by Michael John Cloutier and published by . This book was released on 1990 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Naval Postgraduate School (NPS) is currently involved in a long-term project to investigate and develop real-time control software, artificial intelligence, computer architecture and control systems theory as they pertain to U.S. Navy autonomous vehicle programs. In support of this goal, the NPS is currently designing and fabricating a testbed autonomous underwater vehicle. This work describes the design, development, and testing of a Guidance Subsystem for this testbed vehicle which uses portions of cubic spirals as the desired path to follow between waypoints. In addition, data translation firmware and real-time software for the control surfaces and main motors is designed, implemented and tested. The process of selecting and implementing an appropriate computer architecture in support of these goals is also discussed and detailed, along with the choice of associated computer hardware and real-time operating system software.
Author : Charles Alan Floyd
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (64 download)
Download or read book Design and Implementation of a Collision Avoidance System for the NPS Autonomous Underwater Vehicle (AUV II) Utilizing Ultrasonic Sensors written by Charles Alan Floyd and published by . This book was released on 1991 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Clay A. Richmond
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (64 download)
Download or read book On Programming Transputers to Capture Ada Multitasking for the NPS Autonomous Underwater Vehicle written by Clay A. Richmond and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joel Doleac
Publisher :
ISBN 13 : 9781423542872
Total Pages : 153 pages
Book Rating : 4.5/5 (428 download)
Download or read book A Graphic User Interface (GUI) for Generating NPS Autonomous Underwater Vehicle (AUV) Execution Script Files written by Joel Doleac and published by . This book was released on 1999-08-01 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Naval Postgraduate School is on the leading edge of Autonomous Underwater Vehicle (AUV) research and has developed its own AUV called Phoenix. A new AUV is being constructed in order to increase the vehicle's mission capabilities. Despite its autonomy, the AUV needs to have the mission plan defined before starting. For that purpose, a text file containing a mission script is sent to the computer inside the robot. However, the file syntax is very precise and, thus, this approach to generating missions can be unsafe because it is easy to include typing errors in the text file. This project explains the creation of a Graphic User Interface (GUI) used to automatically generate the text file. Visual Prolog is used to realize such an interface, offering capabilities to simplify the writing of the Prolog code. The results of this work is a GUI that eliminates typing incorrect commands, provides a visualization of the commanded trajectory, and checks the syntax of the text. In this way, users can easily, quickly and safely build the mission plan.
