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Etude Et Reconnaissance De Signaux A Modulations Numeriques Rapides A Partir De Transformations Temps Frequence
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Book Synopsis Étude et reconnaissance de signaux à modulations numériques rapides a partir de transformations temps-fréquence by : Sylvie Pinet
Download or read book Étude et reconnaissance de signaux à modulations numériques rapides a partir de transformations temps-fréquence written by Sylvie Pinet and published by . This book was released on 1995 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire présente un ensemble de résultats issus de l'analyse temps-fréquence par transformations de la classe de Cohen de signaux à modulations numériques d'amplitude, de fréquence et de phase (ask, fsk, psk). Dans une première phase l'intérêt des transformations temps-fréquence pour la description de la structure des signaux à modulations numériques est mis en évidence, en particulier dans la compréhension des déphasages, en recherchant une transformation simple d'utilisation et d'interprétation. Pour cela, les différentes composantes de la distribution de wigner-ville d'un modèle de signal sont interprétées. Puis, en se plaçant dans le plan des ambigüités, deux transformations visuellement claires, permettant de réduire efficacement les termes interférentiels sont dégagées: le spectrogramme et la transformation de zhao-atlas-marks. Leur choix résulte de la structure de leur fonction de pondération et de la fonction d'ambigüité des signaux. Dans une autre phase, une classification automatique des signaux à modulations numériques est proposée à partir du spectrogramme, de la façon suivante: extraction de caractéristiques discriminantes typiques des modulations, puis reconnaissance bayésienne utilisant un apprentissage préalable sur signaux simulés. L'extension à un corpus plus large de signaux modules s'est traduit par de bonnes performances dépassant les 90 pour cent de bien classés.
Book Synopsis Modelling the Wireless Propagation Channel by : Fernando P¿rez Font¿n
Download or read book Modelling the Wireless Propagation Channel written by Fernando P¿rez Font¿n and published by John Wiley & Sons. This book was released on 2008-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical tool for propagation channel modeling with MATLAB® simulations. Many books on wireless propagation channel provide a highly theoretical coverage, which for some interested readers, may be difficult to follow. This book takes a very practical approach by introducing the theory in each chapter first, and then carrying out simulations showing how exactly put the theory into practice. The resulting plots are analyzed and commented for clarity, and conclusions are drawn and explained from the obtained results. Key features include: A unique approach to propagation channel modeling with accompanying MATLAB® simulations to demonstrate the theory in practice Contains step by step commentary and analysis of the obtained simulation results in order to provide a comprehensive and structured learning tool Covers a wide range of topics including shadowing effects, coverage and interference, Multipath Narrowband channel, Multipath Wideband channel, propagation in micro and pico-cells, the land mobile satellite (LMS) channel, the directional Multipath channel and MIMO and propagation effects in fixed radio links (terrestrial and satellite) The book comes with an accompanying website that contains the MATLAB® simulations and allows readers to try them out themselves Well suited for lab-use, as reference and as a self-learning tool both for advanced students and professionals Modeling the Wireless Propagation Channel: A simulation approach with MATLAB® will be best suited for postgraduate (Masters and PhD) students and practicing engineers in telecommunications and electrical engineering fields, who are seeking to familiarise themselves with the topic without too many formulas. The book will also be of interest to network engineers, system engineers and researchers
Book Synopsis The Mediterranean region under climate change by : Collectif
Download or read book The Mediterranean region under climate change written by Collectif and published by IRD Éditions. This book was released on 2018-11-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines.
Book Synopsis Modern Electrocardiography by : Eugene Lepeschkin
Download or read book Modern Electrocardiography written by Eugene Lepeschkin and published by . This book was released on 1951 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Setting Course by : Sharon Anne Babaian
Download or read book Setting Course written by Sharon Anne Babaian and published by . This book was released on 2006 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "[A historical study that] breaks down the history of marine navigation in Canada into three broad categories of technology: shipboard navigation, charting, and shore-based navigational aids"--Page v.
Book Synopsis Principles of Radar and Sonar Signal Processing by : Chevalier François Le
Download or read book Principles of Radar and Sonar Signal Processing written by Chevalier François Le and published by Artech House. This book was released on 2002 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis UCRL. by : U.S. Atomic Energy Commission
Download or read book UCRL. written by U.S. Atomic Energy Commission and published by . This book was released on 19?? with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium Publisher : ISBN 13 : Total Pages :202 pages Book Rating :4.E/5 ( download)
Book Synopsis Space Systems as Contributors to the NATO Defence Mission by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium
Download or read book Space Systems as Contributors to the NATO Defence Mission written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel. Meeting Publisher : ISBN 13 :9789283600374 Total Pages :190 pages Book Rating :4.6/5 (3 download)
Book Synopsis Charges Et Les Spécifications Des Avions Militaires by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel. Meeting
Download or read book Charges Et Les Spécifications Des Avions Militaires written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel. Meeting and published by . This book was released on 1997 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strap-down Inertial Systems written by and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamique Non-linéaire Et Le Chaos by :
Download or read book Dynamique Non-linéaire Et Le Chaos written by and published by . This book was released on 1993 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities by : George E. Cooper
Download or read book The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities written by George E. Cooper and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantum Communications and Cryptography by : Alexander V. Sergienko
Download or read book Quantum Communications and Cryptography written by Alexander V. Sergienko and published by CRC Press. This book was released on 2018-10-03 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.
Book Synopsis Statistical Applications in the Earth Sciences by : F. P. Agterberg
Download or read book Statistical Applications in the Earth Sciences written by F. P. Agterberg and published by Energy, Mines and Resources Canada. This book was released on 1990 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of papers presented at the Colloquium, covering the broad subject areas of spatial data integration, statistical analysis of geoscience data, and quantitative stratigraphy. Working Group reports are included as well.
Book Synopsis Coasts Under Changing Climate: Observations and Modeling by : Rafael Almar
Download or read book Coasts Under Changing Climate: Observations and Modeling written by Rafael Almar and published by Frontiers Media SA. This book was released on 2022-01-04 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Stratigraphy by : E. A. Hailwood
Download or read book High Resolution Stratigraphy written by E. A. Hailwood and published by Geological Society Publishing House. This book was released on 1993 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NATO Glossary of Terms and Definitions by : North Atlantic Treaty Organization
Download or read book NATO Glossary of Terms and Definitions written by North Atlantic Treaty Organization and published by CreateSpace. This book was released on 2013-03-08 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: NATO Glossary of terms and definitions (English and French). Listing terms of military significance and their definitions for use in NATO.
