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Author: Yang Gao
Publisher: Mdpi AG
ISBN: 9783036588186
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Over the last few years, many smartphones have been equipped with Global Navigation Satellite System (GNSS) technology, allowing people to use their own devices for positioning and location services. After the release of the Android Nougat (version 7) operating system, raw GNSS measurements (i.e., pseudorange, carrier-phase, Doppler shift, and carrier-to-noise density ratio (C/N0) observations) from smartphones and tablets became accessible, which opened the door to precise positioning capabilities in consumer devices. Many studies have since been conducted, as precise location information will lead to many new smartphone applications in the near future. While the progress has been encouraging, a number of limiting factors must be overcome in order to support real-world applications, including poor antenna quality, the difficulty of carrier phase ambiguity resolution, and low availability and integrity in operational environments. The contributions from academia and industry included in this reprint discuss innovative ideas and algorithms and present experimental results for precise positioning with Android smartphones.
Author: Yang Gao
Publisher: Mdpi AG
ISBN: 9783036588186
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Over the last few years, many smartphones have been equipped with Global Navigation Satellite System (GNSS) technology, allowing people to use their own devices for positioning and location services. After the release of the Android Nougat (version 7) operating system, raw GNSS measurements (i.e., pseudorange, carrier-phase, Doppler shift, and carrier-to-noise density ratio (C/N0) observations) from smartphones and tablets became accessible, which opened the door to precise positioning capabilities in consumer devices. Many studies have since been conducted, as precise location information will lead to many new smartphone applications in the near future. While the progress has been encouraging, a number of limiting factors must be overcome in order to support real-world applications, including poor antenna quality, the difficulty of carrier phase ambiguity resolution, and low availability and integrity in operational environments. The contributions from academia and industry included in this reprint discuss innovative ideas and algorithms and present experimental results for precise positioning with Android smartphones.
Author: Sara Paiva
Publisher:
ISBN: 9783030712891
Category :
Languages : en
Pages : 0
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Book Description
This book discusses recent technologies and case studies that aim to enhance positioning obtained with commercial smartphones in urban environments, overcoming difficulties with GPS. The authors provide insight into recent trends and innovation on technologies, solutions and approaches to overcome GPS issues in urban environments, due to the existence of a big number of buildings. Topics include security and legal aspects related to positioning systems, the usage of crowdsourcing approaches to enhance positioning, location-based services, proximity based-social networking, satellite navigation and Bluetooth low-energy based systems. The book provides important information for developers that intend to make use of precise positioning for the purpose of commercial applications as well as for research and innovation. Discusses technologies that enhance positioning obtained with commercial smartphones in urban environments; Presents innovations to overcome GPS issues in urban environments caused by dense cities; Includes applications of precise positioning, including their security issues and challenges.
Author: Wenzhong Shi
Publisher: Springer Nature
ISBN: 9811589836
Category : Social Science
Languages : en
Pages : 941
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Book Description
This open access book is the first to systematically introduce the principles of urban informatics and its application to every aspect of the city that involves its functioning, control, management, and future planning. It introduces new models and tools being developed to understand and implement these technologies that enable cities to function more efficiently – to become ‘smart’ and ‘sustainable’. The smart city has quickly emerged as computers have become ever smaller to the point where they can be embedded into the very fabric of the city, as well as being central to new ways in which the population can communicate and act. When cities are wired in this way, they have the potential to become sentient and responsive, generating massive streams of ‘big’ data in real time as well as providing immense opportunities for extracting new forms of urban data through crowdsourcing. This book offers a comprehensive review of the methods that form the core of urban informatics from various kinds of urban remote sensing to new approaches to machine learning and statistical modelling. It provides a detailed technical introduction to the wide array of tools information scientists need to develop the key urban analytics that are fundamental to learning about the smart city, and it outlines ways in which these tools can be used to inform design and policy so that cities can become more efficient with a greater concern for environment and equity.
Author: Sara Paiva
Publisher: Springer Nature
ISBN: 3030712885
Category : Technology & Engineering
Languages : en
Pages : 183
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Book Description
This book discusses recent technologies and case studies that aim to enhance positioning obtained with commercial smartphones in urban environments, overcoming difficulties with GPS. The authors provide insight into recent trends and innovation on technologies, solutions and approaches to overcome GPS issues in urban environments, due to the existence of a big number of buildings. Topics include security and legal aspects related to positioning systems, the usage of crowdsourcing approaches to enhance positioning, location-based services, proximity based-social networking, satellite navigation and Bluetooth low-energy based systems. The book provides important information for developers that intend to make use of precise positioning for the purpose of commercial applications as well as for research and innovation. Discusses technologies that enhance positioning obtained with commercial smartphones in urban environments; Presents innovations to overcome GPS issues in urban environments caused by dense cities; Includes applications of precise positioning, including their security issues and challenges.
Author: Ivan G. Petrovski
Publisher: Cambridge University Press
ISBN: 1107035848
Category : Technology & Engineering
Languages : en
Pages : 339
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Book Description
Get up to speed on GNSS for mobile applications with this practical guide, including step-by-step algorithms and key methods for future systems.
Author: Peter J.G. Teunissen
Publisher: Springer Science & Business Media
ISBN: 3642720110
Category : Science
Languages : en
Pages : 629
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Book Description
An in-depth description of the theory and mathematical models behind the application of the global positioning system in geodesy and geodynamics. The contributions by leading experts in the field ensure a continuous flow of ideas and developments. The mathematical models for GPS measurements are developed in the first half of the book, and these are followed by GPS solutions for geodetic applications on local, regional and global scales.
Author: Richard D. Easton
Publisher: Potomac Books, Inc.
ISBN: 1612344097
Category : History
Languages : en
Pages : 345
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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.
Author: Jiadong Sun
Publisher: Springer Nature
ISBN: 9811537151
Category : Technology & Engineering
Languages : en
Pages : 764
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Book Description
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.
Author: Bernhard Hofmann-Wellenhof
Publisher: Springer Science & Business Media
ISBN: 3211730176
Category : Science
Languages : en
Pages : 537
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Book Description
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.
Author: Stefan Schaer
Publisher:
ISBN: 9783908440017
Category : Global Positioning System
Languages : en
Pages : 205
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Book Description
