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Low-Power Galileo/GPS Single-Shot Receiver Architecture for Mobile Terminals
Der Inhalt dieses Buches gibt die Ergebnisse der Arbeit im Rahmen meiner Dissertation wieder. Zum ersten Mal wurde im Rahmen der vorliegenden Forschungsarbeit die Funktionalität eines GNSS-Empfängers mit der Information eines Zeitsignals kombiniert. Die vorliegende Arbeit verwendet dazu die Eigenheiten des DCF77-Signals um eine hocheffiziente kombinierte Signalverarbeitung zu ermöglichen. Die Kombination von Zeitsynchronisations- und Navigationssignalen eliminiert den größten Nachteil klassischer Assisted-Empfängerarchitekturen, den massiven Einsatz von Rechenleistung in der digitalen Signalverarbeitung. Trotzdem bleiben die Vorteile der bekannten Architekturen, eine kurze Time-to-Firs...
Millimeter-Wave Receiver Concepts for 77 GHz Automotive Radar in Silicon-Germanium Technology
The book presents the analysis and design of integrated automotive radar receivers in Silicon-Germanium technology, for use in complex multi-channel radar transceiver front-ends in the 77GHz frequency band. The main emphasis of the work is the realization of high-linearity and low-power modular receiver channels as well as the investigation of millimeter-wave integrated test concepts for the receiver front-end.
Feldstärkebasierte Präzisionslokalisierung von Mobilfunkendgeräten mithilfe von Jamming-Techniken
In dieser Arbeit wird ein neuartiges Verfahren zur hochpräzisen Ortung von Mobilfunkendgeräten für die Lokalisierung von Verschütteten nach Erdbebenszenarien vorgestellt. Im Rahmen dieser Dissertation werden die nötigen Grundlagen der beiden Mobilfunkstandards GSM und UMTS aufgezeigt, um die besonderen Anforderungen an eine Mobilfunkortung in diesen Systemen verständlich zu machen. Im Besonderen wird der Spreizgewinn eines CDMA-Systems im Hinblick auf eine erfolgreiche Störung mathematisch motiviert. Zudem wird der aktuelle Stand der Mobilfunkortung in diesem Zusammenhang beleuchtet und es wird aufgezeigt, dass derzeit kein Ansatz in der Lage ist, unter diesen Bedingungen eine gewüns...
Source-to-Sink Fluxes in Undisturbed Cold Environments
Provides the first quantitative overview of global source-to-sink fluxes in cold climate environments for graduate students and researchers.
Spine Surgery
This book covers the content of European postgraduate spine surgery courses, using a case-based approach. It describes a stepwise solution to a real-world clinical problem and compares this with the best available evidence. It then provides suggestions on how to bridge the gap (if there is one) between standard of care and evidence-based medicine. Spine Surgery: A Case-Based Approach is aimed at postgraduate students of spine surgery (both trainee neurosurgeons and trainee orthopedic surgeons), and is also of interest to medical students.
Advanced Concepts in Lumbar Degenerative Disk Disease
In this book, leading international specialists in the field join forces to discuss topics, issues and approaches that are of key importance in the optimal treatment of lumbar degenerative disk disease. The coverage is wide ranging, from current understanding of physiopathology and genetics and modern imaging techniques through to the diverse minimally invasive, non-fusion, and fusion surgical techniques. Detailed attention is drawn to the most important aspects to be considered when approaching the patient and making treatment decisions. The role of conservative management is appraised, and surgical techniques and their indications are carefully described. In the concluding section, some of the top specialists from across the world reflect on the lessons that they have learned during lifetimes in spinal surgery. Advanced Concepts in Lumbar Degenerative Disk Disease will be an instructive and fascinating source of information for all spine surgeons and other spine care providers.
Transitioning to Sustainable Life on Land
Sustainable Life on Land, the fifteenth UN Sustainable Development Goal (SDG 15), calls for the protection, restoration and promotion of the sustainable use of terrestrial ecosystems. Among others, it requires societies to sustainably manage forests, halt and reverse land degradation, combat desertification, and halt biodiversity loss. Despite the fact that protection of terrestrial ecosystems is on the rise worldwide and forest loss has slowed, the recent IPBES report concluded that “nature is declining globally at rates unprecedented in human history”. Consequently, the United Nations General Assembly recently declared 2021–2030 the UN Decade on Ecosystem Restoration. There is no dou...
