Download or read book An Experimental Investigation of the Effects of GPS Satellite Multipath written by Ruth Elizabeth Neilan and published by . This book was released on 1986 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1991 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Positioning with GPS 1985 written by and published by . This book was released on 1985 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multipath Effects in GPS Receivers written by Steven Miller and published by Springer Nature. This book was released on 2022-05-31 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autonomous vehicles use global navigation satellite systems (GNSS) to provide a position within a few centimeters of truth. Centimeter positioning requires accurate measurement of each satellite's direct path propagation time. Multipath corrupts the propagation time estimate by creating a time-varying bias. A GNSS receiver model is developed and the effects of multipath are investigated. MATLABtm code is provided to enable readers to run simple GNSS receiver simulations. More specifically, GNSS signal models are presented and multipath mitigation techniques are described for various multipath conditions. Appendices are included in the booklet to derive some of the basics on early minus late code synchronization methods. Details on the numerically controlled oscillator and its properties are also given in the appendix.

Download or read book Multipath Effects in GPS Receivers written by Steven Miller and published by Morgan & Claypool Publishers. This book was released on 2015-12-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autonomous vehicles use global navigation satellite systems (GNSS) to provide a position within a few centimeters of truth. Centimeter positioning requires accurate measurement of each satellite's direct path propagation time. Multipath corrupts the propagation time estimate by creating a time-varying bias. A GNSS receiver model is developed and the effects of multipath are investigated. MATLABtm code is provided to enable readers to run simple GNSS receiver simulations. More specifically, GNSS signal models are presented and multipath mitigation techniques are described for various multipath conditions. Appendices are included in the booklet to derive some of the basics on early minus late code synchronization methods. Details on the numerically controlled oscillator and its properties are also given in the appendix.

Download or read book The Effect of the Ionosphere on Communication Navigation and Surveillance Systems written by John M. Goodman and published by . This book was released on 1988 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Global Positioning System written by Bernhard Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 284 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. DDDr. Helmut Moritz, fortunately, still is.

Download or read book Astrodynamics 1987 written by and published by . This book was released on 1988 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Multipath Carrier Phase Effects in GPS Hydrographic Applications microform written by Xiaolu Fu and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1994 with total page 182 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 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Estimation of Carrier Multipath Bias on GPS Position Measurements written by C. Michael Volk and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multipath is one of the factors degrading the accuracy of position measurements obtained with the Global Positioning System (GPS). We investigate the effects of multipath on the carrier phase measurement and the resulting bias on relative GPS positions for observation times longer than several hours. A short-range GPS network was surveyed with day-long observation sessions. The data display obvious multipath signatures and the position results indicate the presence of site-specific errors at the level of several millimeters. This led us to suspect multipath bias and motivated the quantitative estimation presented here. We first model the phase error due to multipath from a single plane reflector in terms of satellite reflector geometry. The effect of this error on position is then derived by performing a simplified least squares adjustment under the assumption of uniform satellite distribution. After several steps of approximations and manipulations we arrive at simple expressions for the bias in terms of general receiver-reflector geometry and a few other variables. The results are generalized to dual frequency observations that are commonly used for high accuracy observations. The model is then employed to estimate upper limits of the multipath bias for general receiver environments. We consider bias due to multipath from the flat ground, from nearby objects, and from a tilted ground, obtaining formulae for each situation that depend only on reflector characteristics and geometry. Finally, these results are applied to the GPS experiment. Limitations of the applicability due to model assumptions and unmodelled effects are discussed. The two stations thought to be most affected by multipath in the experiment are examined. We find that the multipath phase error as inferred from the observations can give rise only to vertical biases smaller than 2mm and horizontal biases smaller than 1mm. It is thus concluded that bias due to multipath-induced carrier phase error is effectively reduced by averaging if observation intervals are at least several hours long and son basic precautions are taken regarding the receiver environment.

Download or read book AIAA 86 0400 AIAA 86 0450 written by and published by . This book was released on 1986 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book GPS Satellite Surveying written by Alfred Leick and published by John Wiley & Sons. This book was released on 2015-04-02 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Employ the latest satellite positioning tech with this extensive guide GPS Satellite Surveying is the classic text on the subject, providing the most comprehensive coverage of global navigation satellite systems applications for surveying. Fully updated and expanded to reflect the field's latest developments, this new edition contains new information on GNSS antennas, Precise Point Positioning, Real-time Relative Positioning, Lattice Reduction, and much more. New contributors offer additional insight that greatly expands the book's reach, providing readers with complete, in-depth coverage of geodetic surveying using satellite technologies. The newest, most cutting-edge tools, technologies, and applications are explored in-depth to help readers stay up to date on best practices and preferred methods, giving them the understanding they need to consistently produce more reliable measurement. Global navigation satellite systems have an array of uses in military, civilian, and commercial applications. In surveying, GNSS receivers are used to position survey markers, buildings, and road construction as accurately as possible with less room for human error. GPS Satellite Surveying provides complete guidance toward the practical aspects of the field, helping readers to: Get up to speed on the latest GPS/GNSS developments Understand how satellite technology is applied to surveying Examine in-depth information on adjustments and geodesy Learn the fundamentals of positioning, lattice adjustment, antennas, and more The surveying field has seen quite an evolution of technology in the decade since the last edition's publication. This new edition covers it all, bringing the reader deep inside the latest tools and techniques being used on the job. Surveyors, engineers, geologists, and anyone looking to employ satellite positioning will find GPS Satellite Surveying to be of significant assistance.

Download or read book Solid Earth Science in the 1990s Measurement techniques and technology written by and published by . This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solid Earth Science in the 1990s written by and published by . This book was released on 1991 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book China Satellite Navigation Conference CSNC 2018 Proceedings written by Jiadong Sun and published by Springer. This book was released on 2018-05-03 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings present selected research papers from CSNC 2018, held during 23rd-25th May in Harbin, China. The theme of CSNC 2018 is Location, Time of Augmentation. These papers discuss the technologies and applications of the Global Navigation Satellite System (GNSS), and the latest progress made in the China BeiDou System (BDS) especially. They are divided into 12 topics to match the corresponding sessions in CSNC 2018, which broadly covered key topics in GNSS. Readers can learn about the BDS and keep abreast of the latest advances in GNSS techniques and applications.

Download or read book China Satellite Navigation Conference CSNC 2020 Proceedings Volume II written by Jiadong Sun and published by Springer Nature. This book was released on 2020-06-06 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: China Satellite Navigation Conference (CSNC 2020) Proceedings presents selected research papers from CSNC 2020 held during 22nd-25th November in Chengdu, China. These papers discuss the technologies and applications of the Global Navigation Satellite System (GNSS), and the latest progress made in the China BeiDou System (BDS) especially. They are divided into 13 topics to match the corresponding sessions in CSNC2020, which broadly covered key topics in GNSS. Readers can learn about the BDS and keep abreast of the latest advances in GNSS techniques and applications.