Download or read book Decimeter Positioning For Dredging and Hydrographic Surveying written by and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers initiated development of a prototype decimeter differential GPS positioning system for dredging and hydrographic surveying in 1988. This system is to provide real-time accuracies better than one decimeter over ranges up to 20 kilometers from a single reference station. A critical feature is to provide the positions in three dimensions to permit enhanced tidal datum determination. The initial stages of the work have been concept development, feasibility studies, and system analyses. The project has recently concentrated on developing a robust technique to resolve ambiguities on-the-fly. Initial results reported in May 1991 are encouraging. Several experiments are currently being conducted to evaluate alternative resolution methods and to quantify operational limitation of the technology.
Download or read book Dredging and Hydrographic Survey Vessel Positioning written by Stephen R. De Loach and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers initiated development of a prototype differential GPS positioning system for dredging and hydrographic surveying in 1988. This system is to provide real-time accuracies better than one decimeter over ranges up to 20 kilometers from a single reference station. A critical feature is to provide the positions in three dimensions to permit enhanced tidal datum determination. The initial stages of the work have been to perform concept development, feasibility studies, and system analyses. The project has recently concentrated on developing a robust technique to resolve ambiguities on-the-fly. Initial results reported in May 1991 are encouraging. Several experiments are currently being conducted to evaluate alternative resolution methods and to quantify operational constraints of the technology. GPS positioning system; Hydrographic surveying; Dredging operations.
Download or read book The Development of a Real Time Decimeter Level Positioning System Using Global Positioning System GPS Technology written by and published by . This book was released on 1990 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers spends in excess of 350 million annually dredging the nation's ports, harbors and waterways. An additional $40 million is spent performing hydrographic surveys supporting the planning, engineering and design phases of this effort. The USAETL has been tasked to develop a real-time decimeter-level positioning system using Global Positioning System (GPS) technology to support the Corps hydrographic surveying and dredging operations. This paper discusses USAETL's research and development efforts involved in the development of this positioning system.
Download or read book Dredging Research written by and published by . This book was released on 1989 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Positioning System written by B. Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition adds the most recent advances in GPS technology, although the overall structure essentially conforms to the former editions. The textbook explains in a comprehensive manner the concepts of GPS as well as the latest applications in surveying and navigation. Description of project planning, observation, and data processing is provided for novice GPS users. Special emphasis is placed on the modernization of GPS, covering the new signal structure and improvements in the space and control segment. Furthermore, the augmentation of GPS by satellite-based and ground-based systems leading to future Global Navigation Satellite Systems (GNSS) is discussed.
Download or read book Global Positioning System written by Bernhard Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to Dr. Benjamin William Remondi for many reasons. The project of writing a Global Positioning System (GPS) book was con ceived in April 1988 at a GPS meeting in Darmstadt. Dr. Remondi discussed with me the need for an additional GPS textbook and suggested a possible joint effort. In 1989, I was willing to commit myself to such a project. Un fortunately, the timing was less than ideal for Dr. Remondi. Therefore, I decided to start the project with other coauthors. Dr. Remondi agreed and indicated his willingness to be a reviewer. I selected Dr. Herbert Lichtenegger, my colleague from the University of Technology at Graz, Austria, and Dr. James Collins from the United States. In my opinion, the knowledge of the three authors should cover the wide spectrum of GPS. Dr. Lichtenegger is a geodesist with broad experience in both theory and practice. He has specialized his research to geodetic astron omy including orbital theory and geodynamical phenomena. Since 1986, Dr. Lichtenegger's main interest is dedicated to GPS. Dr. Collins retired from the U.S. National Geodetic Survey in 1980, where he was the Deputy Director. For the past ten years, he has been deeply involved in using GPS technology with an emphasis on surveying. Dr. Collins was the founder and president of Geo/Hydro Inc. My own background is theoretically oriented. My first chief, Prof. Dr. Peter Meissl, was an excellent theoretician; and my former chief, Prof. DDDDr. Helmut Moritz, fortunately, still is.
Download or read book GNSS Global Navigation Satellite Systems written by Bernhard Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2007-11-20 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book extends the scientific bestseller "GPS - Theory and Practice" to cover Global Navigation Satellite Systems (GNSS) and includes the Russian GLONASS, the European system Galileo, and additional systems. The book refers to GNSS in the generic sense to describe the various existing reference systems for coordinates and time, the satellite orbits, the satellite signals, observables, mathematical models for positioning, data processing, and data transformation. This book is a university-level introductory textbook and is intended to serve as a reference for students as well as for professionals and scientists in the fields of geodesy, surveying engineering, navigation, and related disciplines.
Download or read book Positioning Techniques and Equipment for U S Army Corps of Engineers Hydrographic Surveys written by Ellis Dale Hart and published by . This book was released on 1977 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrographic Surveying written by Samuel Hill Lea and published by . This book was released on 1905 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organizational Activities written by U.S. Army Topographic Engineering Center and published by . This book was released on 1991 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Real Time Centimeter Positioning with GPS A System Developed by the U S Army Corps of Engineers written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Corps of Engineers has been developing a Global Positioning System (GPS) carrier phase based positioning system for hydrographic surveying and dredging since 1988. This system provides real-time three-dimensional positions with horizontal and vertical accuracies better than 1 decimeter over ranges up to 20 kilometers from a single reference station without static initialization. The project has passed from concept development through feasibility studies, system analysis, resolution of carrier ambiguities on-the-fly (OTF), to final system integration which is nearing completion. The real-time testing of the system began in March of 1993. This testing was performed under varying operating conditions to evaluate the limits of OTF ambiguity resolution for precisely positioning moving platforms. This paper will summarize the results of those tests. Early real-time tests performed have shown 1-3 centimeters in all three dimensions. The final design of the real-time system and its integration to hydrographic survey platforms also will be discussed. Global positioning system, Real time, 20 Kilometers, Resolution of carrier ambiguities on-the-fly, and subdecimeter accuracies.
Download or read book Army RD A Bulletin written by and published by . This book was released on 1989 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Results of Real Time Testing and Demonstration of the U S Army Corps of Engineers Real Time On the Fly Positioning System written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers has been developing a GPS carrier phase based positioning system for hydrographic surveying and dredging since 1988. This system provides real-time three dimensional positions with horizontal and vertical accuracies better than one decimeter over ranges up to 20 kilometers from a single reference station without static initialization. The project has passed from concept development through feasibility studies, system analysis, resolution of carrier ambiguities on-the-fly (OTF), to final system integration. The real-time testing of the system began in March of 1993 and public demonstrations of the system began in October, 1993. Testing of the system has been performed under varying operating conditions to evaluate the limits of OTF ambiguity resolution for precisely positioning moving platforms. Tests have shown that this system is capable of 1-3 centimeters in all three dimensions. This paper will the results of the testing to date and briefly describe the OTF system. Positioning system, Without static initialization, Carrier ambiguities on-the-fly, Global positioning system, Dredging research program.
Download or read book An Introduction to an Overview of Hydrographic Survey Techniques written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2020-03-14 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers and construction managers interested in hydrographic surveys of various types of waterways. This is what is discussed: 1. INTRODUCTION 2. GENERAL HYDROGRAPHIC SURVEY METHODS 3. SURVEY COVERAGE OPTIONS 4. SURVEY LINE SPACING AND ALIGNMENT SPECIFICATIONS 5. HORIZONTAL POSITIONING METHODS AND DATUM SPECIFICATIONS 6. VERTICAL DATUM SPECIFICATIONS 7. WATER SURFACE ELEVATION MEASUREMENT SPECIFICATIONS 8. VESSEL MOTION AND ORIENTATION REQUIREMENTS 9. QUALITY CONTROL AND QUALITY ASSURANCE 10. MISCELLANEOUS 11. GENERAL PLANNING CONSIDERATIONS 12. DETERMINING PROJECT ACCURACY REQUIREMENTS 13. DETERMINING REQUIRED DATA DENSITY 14. VESSEL SELECTION CONSIDERATIONS 15 DATA MAY BE INITIALLY REVIEWED 16. OFFICE DATA EDITING AND PROCESSING 17. INITIAL FIELD DATA REVIEW AND EDITING 18. OFFICE DATA EDITING AND PROCESSING 19. DEPTH SELECTION OPTIONS 20. HARD COPY PLOT OPTIONS 21. SELECTING REPRESENTATIVE DEPTHS ON PLAN DRAWINGS 22. TERRAIN MODELING 23. DATA SUBMITTAL TO PROJECT/DESIGN ENGINEER 24. RETENTION OF HARD-COPY DEPTH RECORDS.
Download or read book Army RD A written by and published by . This book was released on 1993 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Position Navigation and Timing Technologies in the 21st Century written by Y. Jade Morton and published by John Wiley & Sons. This book was released on 2021-01-13 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the latest developments in PNT technologies, including integrated satellite navigation, sensor systems, and civil applications Featuring sixty-four chapters that are divided into six parts, this two-volume work provides comprehensive coverage of the state-of-the-art in satellite-based position, navigation, and timing (PNT) technologies and civilian applications. It also examines alternative navigation technologies based on other signals-of-opportunity and sensors and offers a comprehensive treatment on integrated PNT systems for consumer and commercial applications. Volume 1 of Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications contains three parts and focuses on the satellite navigation systems, technologies, and engineering and scientific applications. It starts with a historical perspective of GPS development and other related PNT development. Current global and regional navigation satellite systems (GNSS and RNSS), their inter-operability, signal quality monitoring, satellite orbit and time synchronization, and ground- and satellite-based augmentation systems are examined. Recent progresses in satellite navigation receiver technologies and challenges for operations in multipath-rich urban environment, in handling spoofing and interference, and in ensuring PNT integrity are addressed. A section on satellite navigation for engineering and scientific applications finishes off the volume. Volume 2 of Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications consists of three parts and addresses PNT using alternative signals and sensors and integrated PNT technologies for consumer and commercial applications. It looks at PNT using various radio signals-of-opportunity, atomic clock, optical, laser, magnetic field, celestial, MEMS and inertial sensors, as well as the concept of navigation from Low-Earth Orbiting (LEO) satellites. GNSS-INS integration, neuroscience of navigation, and animal navigation are also covered. The volume finishes off with a collection of work on contemporary PNT applications such as survey and mobile mapping, precision agriculture, wearable systems, automated driving, train control, commercial unmanned aircraft systems, aviation, and navigation in the unique Arctic environment. In addition, this text: Serves as a complete reference and handbook for professionals and students interested in the broad range of PNT subjects Includes chapters that focus on the latest developments in GNSS and other navigation sensors, techniques, and applications Illustrates interconnecting relationships between various types of technologies in order to assure more protected, tough, and accurate PNT Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications will appeal to all industry professionals, researchers, and academics involved with the science, engineering, and applications of position, navigation, and timing technologies. pnt21book.com
