ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Molecular Diversity Preservation International  (4)
  • Berlin : Springer  (2)
  • Berlin, Heidelberg :Springer Berlin Heidelberg :  (1)
Collection
Keywords
Publisher
Language
Years
  • 1
    Keywords: Geography. ; Geography.
    Description / Table of Contents: Introduction -- Surveying the Earth through the ages -- Geodesy in the 21st century - Global reference systems and modern geodetic space observation techniques -- Our planet in focus - Phenomena of global change -- Social relevance of high-precision measurement of our planet from space.
    Abstract: How does your cell phone know where you are right now? How is our planet changing due to geodynamic processes and ongoing climate change? How can these changes be precisely measured from space in order to obtain reliable information about the melting of ice sheets or the threat to coastal regions from rising sea levels? This popular science book provides answers to these and many other socially relevant questions. It is aimed at interested non-professionals who want to learn more about our fascinating planet, but also at experts in natural sciences. You are taken on an exciting journey through time from the first surveys in ancient times to the satellite era, which is providing us with a global view of our home planet. Illustrative examples demonstrate how deeply global positioning and navigation with satellites pervade our daily life, and what fundamental contributions geodesy makes to understanding the Earth system and determining the effects of climate change. With interview contributions by Günter Hein, Harald Lesch and Stefan Rahmstorf. This book is a translation of the original German 1st edition Mission Erde by Detlef Angermann et al., published by Springer-Verlag GmbH Germany, part of Springer Nature in 2021. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). Content and language were subsequently revised by the authors. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors. The Authors Detlef Angermann holds a doctorate in geodesy and heads the Research Area Reference Systems at the Deutsches Geodätisches Forschungsinstitut of the Technical University of Munich. Roland Pail is Professor of Astronomical and Physical Geodesy at the Technical University of Munich. Florian Seitz is Professor of Geodetic Geodynamics and heads the Deutsches Geodätisches Forschungsinstitut of the Technical University of Munich. Urs Hugentobler is Professor of Satellite Geodesy and heads the Satellite Geodesy Research Facility of the Technical University of Munich.
    Type of Medium: Online Resource
    Pages: XII, 246 p. 74 illus., 68 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9783662641064
    DDC: 910
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Call number: M 22.94778
    Type of Medium: Monograph available for loan
    Pages: xii, 246 Seiten , Illustrationen, Diagramme , 23.5 cm x 15.5 cm
    ISBN: 9783662641057 , 3662641054
    Language: English
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Call number: M 21. 94487
    Description / Table of Contents: Einführung -- Die Vermessung der Erde im Wandel der Zeit -- Die Geodäsie im 21. Jahrhundert – Globale Referenzsysteme und moderne geodätische Raumbeobachtungsverfahren -- Unser Planet im Fokus – Phänomene des globalen Wandels -- Gesellschaftliche Relevanz der hochgenauen Vermessung unseres Planeten aus dem Weltraum.
    Description / Table of Contents: Woher weiß Ihr Handy, wo Sie gerade unterwegs sind? Wie verändert sich unser Planet aufgrund von geodynamischen Prozessen und dem fortschreitenden Klimawandel? Wie können diese Veränderungen präzise aus dem Weltraum vermessen werden, um verlässliche Aussagen etwa über das Abschmelzen der Eisschilde oder die Bedrohung von Küstenregionen durch den steigenden Meeresspiegel zu erhalten? Das vorliegende Sachbuch gibt Antworten auf diese gesellschaftlich relevanten Fragen. Es richtet sich an interessierte Laien, die mehr über unseren faszinierenden Planeten erfahren wollen, aber auch an Fachexperten naturwissenschaftlicher Disziplinen. Sie werden mitgenommen auf eine spannende Zeitreise von den ersten Vermessungen in der Antike bis in das Zeitalter der Satelliten, die uns die weltweite Bestimmung von extrem genauen Positionen und eine globale Sicht auf unseren Heimatplaneten ermöglichen. Anhand anschaulicher Beispiele wird vermittelt, wie tief die globale Positionierung und Navigation mit Satelliten unseren Alltag durchdrungen haben, und welche fundamentalen Beiträge die Geodäsie als die Wissenschaft von der Vermessung der Erde zum Verständnis des Erdsystems und zur Bestimmung der Auswirkungen des Klimawandels liefert. Mit Interviewbeiträgen von Günter Hein, Harald Lesch und Stefan Rahmstorf Die Autoren Detlef Angermann ist promovierter Geodät und leitet den Bereich Referenzsysteme am Deutschen Geodätischen Forschungsinstitut der TU München. Roland Pail ist Professor für Astronomische und Physikalische Geodäsie an der TU München. Florian Seitz ist Professor für Geodätische Geodynamik und leitet das Deutsche Geodätische Forschungsinstitut der TU München. Urs Hugentobler ist Professor für Satellitengeodäsie und leitet die Forschungseinrichtung Satellitengeodäsie der TU München.
    Pages: XVI, 275 Seiten , Illustrationen
    ISBN: 9783662623374
    URL: Cover
    Language: German
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2020-04-07
    Description: The time-difference-of-arrival (TDOA) self-calibration is an important topic for many applications, such as indoor navigation. One of the most common methods is to perform nonlinear optimization. Unfortunately, optimization often gets stuck in a local minimum. Here, we propose a method of dimension lifting by adding an additional variable into the l 2 norm of the objective function. Next to the usual numerical optimization, a partially-analytical method is suggested, which overdetermines the system of equations proportionally to the number of measurements. The effect of dimension lifting on the TDOA self-calibration is verified by experiments with synthetic and real measurements. In both cases, self-calibration is performed for two very common and often combined localization systems, the DecaWave Ultra-Wideband (UWB) and the Abatec Local Position Measurement (LPM) system. The results show that our approach significantly reduces the risk of becoming trapped in a local minimum.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2018-02-06
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2019-10-09
    Description: In this work we introduce a relative localization method that estimates the coordinate frame transformation between two devices based on distance measurements. We present a linear algorithm that calculates the relative pose in 2D or 3D with four degrees of freedom (4-DOF). This algorithm needs a minimum of five or six distance measurements, respectively, to estimate the relative pose uniquely. We use the linear algorithm in conjunction with outlier detection algorithms and as a good initial estimate for iterative least squares refinement. The proposed method outperforms other related linear methods in terms of distance measurements needed and in terms of accuracy. In comparison with a related linear algorithm in 2D, we can reduce 10% of the translation error. In contrast to the more general 6-DOF linear algorithm, our 4-DOF method reduces the minimum distances needed from ten to six and the rotation error by a factor of four at the standard deviation of our ultra-wideband (UWB) transponders. When using the same amount of measurements the orientation error and translation error are approximately reduced to a factor of ten. We validate our method with simulations and an experimental setup, where we integrate ultra-wideband (UWB) technology into simultaneous localization and mapping (SLAM)-based devices. The presented relative pose estimation method is intended for use in augmented reality applications for cooperative localization with head-mounted displays. We foresee practical use cases of this method in cooperative SLAM, where map merging is performed in the most proactive manner.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2019-07-04
    Description: The position accuracy based on Decawave Ultra-Wideband (UWB) is affected mainly by three factors: hardware delays, clock drift, and signal power. This article discusses the last two factors. The general approach to clock drift correction uses the phase-locked loop (PLL) integrator, which we show is subject to signal power variations, and therefore, is less suitable for clock drift correction. The general approach to the estimation of signal power correction curves requires additional measurement equipment. This article presents a new method for obtaining the curve without additional hardware and clock drift correction without the PLL integrator. Both correction methods were fused together to improve two-way ranging (TWR).
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...