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Author: Alan Oxley
Publisher: Academic Press
ISBN: 0128097876
Category : Mathematics
Languages : en
Pages : 200
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Book Description
Uncertainties in GPS Positioning: A Mathematical Discourse describes the calculations performed by a GPS receiver and the problems associated with ensuring that the derived location is a close match to the actual location. Inaccuracies in calculating a location can have serious repercussions, so this book is a timely source for information on this rapidly evolving technology. Covers how a GPS receiver works and how the earth is modeled so position data can be calculated Discusses the different signals and clock speeds of the satellites, the receivers, and sources of inaccuracy Examines how the errors are distributed in the data and provides examples
Author: Alan Oxley
Publisher: Academic Press
ISBN: 0128097876
Category : Mathematics
Languages : en
Pages : 200
Get Book Here
Book Description
Uncertainties in GPS Positioning: A Mathematical Discourse describes the calculations performed by a GPS receiver and the problems associated with ensuring that the derived location is a close match to the actual location. Inaccuracies in calculating a location can have serious repercussions, so this book is a timely source for information on this rapidly evolving technology. Covers how a GPS receiver works and how the earth is modeled so position data can be calculated Discusses the different signals and clock speeds of the satellites, the receivers, and sources of inaccuracy Examines how the errors are distributed in the data and provides examples
Author: David Wells
Publisher:
ISBN:
Category : Artificial satellites in navigation
Languages : en
Pages : 610
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Book Description
"The Guide to GPS Positioning is a self-contained introduction to the Global Positioning System, designed to be used in any of the following three ways: as a self-study guide, as lecture notes for formal post-secondary education courses, or as hand-out material to support short-course and seminar presentations on GPS." -- Introduction.
Author: Geomatics Canada
Publisher: The Division
ISBN:
Category : Artificial satellites in navigation
Languages : en
Pages : 50
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Book Description
The Global Positioning System is a satellite-based radio-navigation system established for military uses, which as a byproduct has been made available to the civilian community. The system can be used to achieve position accuracies ranging from 100 meters down to a few millimeters, depending on the equipment used and procedures followed. It is thus important for system users to understand what techniques are required to achieve desired accuracies with minimal cost and complexity. These guidelines contain four main parts geared toward achieving that objectives. They explain the fundamentals of global positioning, describe positioning techniques, and discuss procedures for application of the system. General considerations and procedures common to almost any positioning project are presented, along with special considerations which must be made when determining elevations. The appendices include a glossary and a guide to information sources.
Author: Wenzhong Shi
Publisher: CRC Press
ISBN: 1420059289
Category : Mathematics
Languages : en
Pages : 456
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Book Description
When compared to classical sciences such as math, with roots in prehistory, and physics, with roots in antiquity, geographical information science (GISci) is the new kid on the block. Its theoretical foundations are therefore still developing and data quality and uncertainty modeling for spatial data and spatial analysis is an important branch of t
Author: Kathryn Materna
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Book Description
Abstract Errors in modeling atmospheric delays are one of the limiting factors in the accuracy of GPS position determination. In regions with uneven topography, atmospheric delay phenomena can be especially complicated. Current delay models used in analyzing GPS data from the Plate Boundary Observatory (PBO) are successful in achieving millimeter-level accuracy at most locations; however, at a subset of stations, the time series for position estimates contain an unusually large number of outliers. In many cases these outliers are oriented in the same direction. The stations which exhibit asymmetric outliers occur in various places across the PBO network, but they are especially numerous in California's Mammoth Lakes region, which served as a case study for this project. The phenomenon of skewed residuals was analyzed by removing secular trends and variations with periods longer than 75 days from the signal using a median filter. The skewness of the station position residuals was subsequently calculated in the north, east and up directions. In the cases examined, typical position outliers are 5-15 mm. In extreme cases, skewed position residuals, not related to snow on antennas, can be as large as 20 mm. I examined the causes of the skewness through site-by-site comparisons with topographic data and various forms of weather data such as numerical weather models, radiosondes, and satellite images. Analysis suggests that the direction of the skewness is generally parallel to the local topographic gradient at a scale of several kilometers. Comparison with weather data suggests that outlier data points in the Mammoth Lakes region occur when lee waves are likely to form downstream of the Sierra Nevada Mountains. The results imply that coupling between the atmosphere and local topography, e.g. lee waves, is responsible for the phenomenon of skewed residuals.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309176441
Category : Science
Languages : en
Pages : 284
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Book Description
The Global Positioning System (GPS) is a satellite-based navigation system that was originally designed for the U.S. military. However, the number of civilian GPS users now exceeds the military users, and many commercial markets have emerged. This book identifies technical improvements that would enhance military, civilian, and commercial use of the GPS. Several technical improvements are recommended that could be made to enhance the overall system performance.
Author: Canada. Ecosystem Sciences and Evaluation Directorate
Publisher: Geodetic Survey Divison, Canada Centre for Surveying
ISBN:
Category : Transportation
Languages : en
Pages : 126
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Book Description
The Global Positioning System (GPS) is a satellite-based radio-navigation system established by the United States Department of Defense for military positioning applications that as a by-product has been made available to the civilian community. These guidelines provide professionals working the field of water resources with the background and procedural information needed to effectively apply GPS technology to enhance the value of their field measurements and increase productivity. The guide explains the fundamentals of GPS, basic positioning concepts, positioning techniques, and procedures for the application of GPS.
Author: Pratap Misra
Publisher: Ingram
ISBN:
Category : Transportation
Languages : en
Pages : 602
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Book Description
The second edition of this widely praised book offers a comprehensive introduction to GPS: the system, signals, receivers, measurements, and algorithms for estimation of position, velocity, and time. It is intended as a textbook for a senior- or graduate-level engineering course and a self-study guide for practicing engineers.The book is divided into four parts. Part I introduces the basic framework for a global navigation satellite system, including coordinate frames, time references, and satellite orbits, and provides an overview of GPS, GLONASS, and Galileo. Part II describes the fruits of GPS: estimation of position, velocity, and time. Part III discusses the ingenious structure of the GPS signals. Part IV introduces the signal processing steps required to extract the necessary measurements from these signals, and explores the challenges posed by signal blockage and RFI.
Author:
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 452
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Book Description
Author: Ahmed El-Rabbany
Publisher: Artech House
ISBN: 9781580531832
Category : Technology & Engineering
Languages : en
Pages : 202
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Book Description
If you're looking for an up-to-date, easy-to-understand treatment of the GPS (Global Positioning System), this one-of-a-kind resource offers you the knowledge you need for your work, without bogging you down with advanced mathematics. It addresses all aspects of the GPS, emphasizes GPS applications, examines the GPS signal structure, and covers the key types of measurement being utilized in the field today.
