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Author: G. Michael Fitch
Publisher:
ISBN:
Category : Global Positioning System
Languages : en
Pages : 30
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Book Description
The purpose of this study was to determine the feasibility of using the Global Positioning System (GPS), composed of 24 NAVSTAR satellites emitting individually coded radio signals with accurate timing and ephemeris information, to capture environmental field data. The accuracy of data collected in diverse environments and the practicality of transferring the data into a geographic information system (GIS) or computer aided design system (CADD) were tested. Three different data sets were collected: point, line, and area data. A Trimble GeoExplorer mapping grade GPS was used as the rover for data collection tests. Trimble base stations in North Carolina were used as the source of postprocessing data. Data collection was accurate and conversion of the data into GIS or CADD formats was practical. GPS technology is a highly feasible way to capture environmental location data.
Author: G. Michael Fitch
Publisher:
ISBN:
Category : Global Positioning System
Languages : en
Pages : 30
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Book Description
The purpose of this study was to determine the feasibility of using the Global Positioning System (GPS), composed of 24 NAVSTAR satellites emitting individually coded radio signals with accurate timing and ephemeris information, to capture environmental field data. The accuracy of data collected in diverse environments and the practicality of transferring the data into a geographic information system (GIS) or computer aided design system (CADD) were tested. Three different data sets were collected: point, line, and area data. A Trimble GeoExplorer mapping grade GPS was used as the rover for data collection tests. Trimble base stations in North Carolina were used as the source of postprocessing data. Data collection was accurate and conversion of the data into GIS or CADD formats was practical. GPS technology is a highly feasible way to capture environmental location data.
Author: Scott Pace
Publisher: RAND Corporation
ISBN:
Category : Fiction
Languages : en
Pages : 438
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Book Description
A comprehensive assessment of the challenges and opportunities created by worldwide access to this revolutionary technology.
Author: Robert Puterski
Publisher:
ISBN:
Category : Global Positioning System
Languages : en
Pages : 88
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Book Description
Author: Michael Kennedy
Publisher: CRC Press
ISBN: 1420088009
Category : Technology & Engineering
Languages : en
Pages : 308
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Book Description
Since the publication of the bestselling second edition of The Global Positioning System and GIS, the use of GPS as an input for GIS has evolved from a supporting analysis tool to become an essential part of real-time management tools in wide-ranging fields. Continued technological advances and decreased costs have altered the GPS vendor lands
Author: Hari Shanker Sharma
Publisher: Concept Publishing Company
ISBN: 9788180693427
Category : Cartography
Languages : en
Pages : 450
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Book Description
"Papers presented at the Training Programme on Mathematical Modelling in GIS/GPS and Digital Cartography, held at Jaipur during 1st February to 2nd March 2005".--[Source inconnue].
Author: Michael Kennedy
Publisher: CRC Press
ISBN: 0415286085
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
The Global Positioning System and Geographical Information Systems, working in tandem, provide a powerful tool. Recent developments such as the removal of Selective Availability have not merely made these technologies more accurate but have also opened up a new seam of applications, particularly in location based services. The Global Positioning System and GIS is a clear text and guide to the use and integration of these powerful technologies, with each topic combining an overview with a step-by-step approach. This significantly revised and extended second edition now comes with a set of resources on a CD-ROM, including an instructor's guide, demonstration data and exercises. It is a straightforward introductory text for students and teachers on GIS/GPS courses as well as a practical and introductory field manual for mapping science professionals, giving basic practical guidance, particularly to the integrated use of ESRI's GIS software with Trimble's GPS hardware.
Author: Joseph L. Awange
Publisher: Springer Science & Business Media
ISBN: 3540882561
Category : Technology & Engineering
Languages : en
Pages : 387
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Book Description
Global Navigation Satellite Systems (GNSS) are revolutionizing the world in a way their original developers never envisaged. From being military “war” tools, GNSS satellites are rapidly becoming “peace” tools that play a potentially critical role in enabling changing environmental phenomenon that do not permit direct measurements to be remotely observed via their all-weather, highly accurate and continuously updatable positional time series. This is evident, for example, in their use in emerging environmental monitoring methods that are considered in this book. These include: GPS-based radio telemetry, which is enhancing ecological and conservation monitoring by more accurately mapping animal movements, their behaviours, and their impact on the environment; GNSS-meteorology, which is contributing to weather and climate change studies; GNSS-remote sensing, which, for example, allows the rapid monitoring of changes in fresh water resources and cryosphere; Geosensor network techniques, which are earning a crucial role in disaster response management; Epidemiology, for improved efficiency in tracking and studying the spread of infectious diseases and climate change effects on vector-borne diseases; and Economics, to provide data for the econometric modelling of casual impact of policies. In Environmental Impact Assessments (EIA), Strategic Environmental Assessments (SEA), and Sustainability Assessments (SA), GNSS, together with other spaced-based remote sensing techniques, are emerging, not only as modern tools that connect the developers to the community, but also provide information that support Multi-Criteria Analysis (MCA) methods, which inform decision making and policy formulations. By bringing the two fields of geodesy (the parent of GNSS technology) and environmental studies (potential users of this technology), this book presents the concepts of GNSS in a simplified way that can, on the one hand, be understood and utilised by environmentalists, while on the other, outlines its potential applications to environmental monitoring and management for those engaged more with its technology, which hopefully will further energise the already innovative research that is being carried out. Lastly, this book is most relevant to all the professionals whose work is related to the environment such as hydrologists, meteorologists, epidemiologists, economist, and engineers, to name just a few. A comprehensive yet candid and compelling presentation of Global Navigation Satellite Systems and its application to environmental monitoring and a host of other socio-economic activities. This is an essential and new ground breaking reading for all professional practitioners and even academics seeking to study and become involved in using Global Navigation Satellite Systems in diverse fields ranging from environmental monitoring to economic activities such as monitoring weather and climate in order to design crop failure insurance. Nathaniel O. Agola, Professor of Business and Financial Economics, Ritsumeikan University, Japan
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309052831
Category : Science
Languages : en
Pages : 285
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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: John Sanders Miller
Publisher:
ISBN:
Category : Global Positioning System
Languages : en
Pages : 76
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Book Description
Countermeasures for motor vehicle crashes are often determined after extensive data analysis of the crash history of a roadway segment. An important factor that drives the value of this analysis is the accuracy, or precision, with which the crash is located. Yet this location is only as accurate as the estimate of the police officer. In light of this, many have suggested that global positioning system (GPS) technology has the potential to increase data accuracy and decrease the time spent recording crash location data. Over 10 months, the locations of 34 crashes were determined using both the conventional method and a hand-held GPS receiver. The two methods were compared in terms of timeliness and precision. The benefits of any improved precision using the GPS were assessed through querying crash data analysts at the local level as to how the improved precision affected their consideration of potential crash countermeasures for five crashes selected from the sample. At the scene of the crash, the use of GPS receivers added up to an average of 10 extra minutes per crash, depending on how crash location was defined. There was an average disparity of 130 ft (39 m) between the location as determined with the GPS and conventional methods, presuming the GPS precision given in the literature is within 7 ft (2 m). However, although both the literature and survey responses revealed that greater precision will affect evaluation of crash countermeasures in some instances, many of the errors cited in conventional crash location methods arise from human error rather than precision. The authors provide recommendations for defining crash location uniformly, limitations of the methodology employed in this effort, and the types of countermeasures that may or may not benefit from improved precision.
Author: Richard D. Easton
Publisher: Potomac Books, Inc.
ISBN: 1612344097
Category : History
Languages : en
Pages : 357
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Book Description
GPS Declassified examines the development of GPS from its secret, Cold War military roots to its emergence as a worldwide consumer industry. Drawing on previously unexplored documents, the authors examine how military rivalries influenced the creation of GPS and shaped public perceptions about its origin. Since the United States' first program to launch a satellite in the late 1950s, the nation has pursued dual paths into space-one military and secret, the other scientific and public. Among the many commercial spinoffs this approach has produced, GPS arguably boasts the greatest impact on our.
