Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 938
Book Description
International Aerospace Abstracts
Author: IAGA Bulletin
Author: International Association of Geomagnetism and AeronomyPublisher:
ISBN:
Category : Geomagnetism
Languages : en
Pages : 200
Book Description
IAGA '93
Author: I A G A Bulletin
Author: International Association of Geomagnetism and AeronomyPublisher:
ISBN:
Category : Geomagnetism
Languages : en
Pages : 144
Book Description
Annotated Acronyms and Abbreviations of Marine Science Related International Organizations
Author: Charlotte Munchmeyer AshbyPublisher:
ISBN:
Category : International agencies
Languages : en
Pages : 124
Book Description
Middle Atmosphere Program
Author: Chronique de l'U.G.G.I.
Author: International Union of Geodesy and GeophysicsPublisher:
ISBN:
Category : Geodesy
Languages : en
Pages : 544
Book Description
The Magnetic Declination
Author: Mioara MandeaPublisher: Springer Nature
ISBN: 303109476X
Category : Science
Languages : en
Pages : 118
Book Description
This book aims then to describe in a comprehensible way efforts made over centuries of measuring and understanding the magnetic declination. The book also highlights some important characteristics of the Earth’s magnetic field thanks to the declination measurements. Some applications and societal implications are also underlined. Anyone living in the 21st century knows the best way to navigate is by using a smartphone App. Decades and centuries ago, in order to find the same way a magnificent instrument was used: the compass. Despite many being aware of the compass, not everyone appreciates that throughout the ages of exploration, sailors and explorers linked their lives and great discoveries to the magnetic needle. Furthermore, is there an awareness of the Earth’s physical mechanism behind the changes in time and space of the direction indicated by the compass? The magnetic declination is at the center of this book and it helps the reader to understand how to navigate in time and space. The book provides the history of the compass and magnetic declination leading the reader to the understanding of our magnetic planet. This book is designed for those who are fascinated by the long history of geomagnetism. This book relies on reader’s knowledge of elementary scientific concepts, and introduces the geomagnetism concepts as they evaluated in time. The focus is on some basic concepts and physical processes in order to understand the evolution of a specific element of the geomagnetic field, the declination. The primary audience may have just started an interest in the geomagnetism and history of science, as students and researchers. Some readers may have an interest that only touches the geomagnetism, as navigators, geophysicists, historians.
Exploratory Causal Analysis with Time Series Data
Author: James M. McCrackenPublisher: Springer Nature
ISBN: 3031019091
Category : Computers
Languages : en
Pages : 133
Book Description
Many scientific disciplines rely on observational data of systems for which it is difficult (or impossible) to implement controlled experiments. Data analysis techniques are required for identifying causal information and relationships directly from such observational data. This need has led to the development of many different time series causality approaches and tools including transfer entropy, convergent cross-mapping (CCM), and Granger causality statistics. A practicing analyst can explore the literature to find many proposals for identifying drivers and causal connections in time series data sets. Exploratory causal analysis (ECA) provides a framework for exploring potential causal structures in time series data sets and is characterized by a myopic goal to determine which data series from a given set of series might be seen as the primary driver. In this work, ECA is used on several synthetic and empirical data sets, and it is found that all of the tested time series causality tools agree with each other (and intuitive notions of causality) for many simple systems but can provide conflicting causal inferences for more complicated systems. It is proposed that such disagreements between different time series causality tools during ECA might provide deeper insight into the data than could be found otherwise.
Modern Spacecraft Guidance, Navigation, and Control
Author: Vincenzo PescePublisher: Elsevier
ISBN: 0323909175
Category : Technology & Engineering
Languages : en
Pages : 1074
Book Description
Modern Spacecraft Guidance, Navigation, and Control: From System Modeling to AI and Innovative Applications provides a comprehensive foundation of theory and applications of spacecraft GNC, from fundamentals to advanced concepts, including modern AI-based architectures with focus on hardware and software practical applications. Divided into four parts, this book begins with an introduction to spacecraft GNC, before discussing the basic tools for GNC applications. These include an overview of the main reference systems and planetary models, a description of the space environment, an introduction to orbital and attitude dynamics, and a survey on spacecraft sensors and actuators, with details of their modeling principles. Part 2 covers guidance, navigation, and control, including both on-board and ground-based methods. It also discusses classical and novel control techniques, failure detection isolation and recovery (FDIR) methodologies, GNC verification, validation, and on-board implementation. The final part 3 discusses AI and modern applications featuring different applicative scenarios, with particular attention on artificial intelligence and the possible benefits when applied to spacecraft GNC. In this part, GNC for small satellites and CubeSats is also discussed. Modern Spacecraft Guidance, Navigation, and Control: From System Modeling to AI and Innovative Applications is a valuable resource for aerospace engineers, GNC/AOCS engineers, avionic developers, and AIV/AIT technicians. Provides an overview of classical and modern GNC techniques, covering practical system modeling aspects and applicative cases Presents the most important artificial intelligence algorithms applied to present and future spacecraft GNC Describes classical and advanced techniques for GNC hardware and software verification and validation and GNC failure detection isolation and recovery (FDIR)