tailieunhanh - ULTRA-WIDEBAND RADIO TECHNOLOGIE FOR COMMUNICATIONS, LOCALIZATION AND SENSOR APPLICATIONS

Sometimes history seems to repeat. Even in the so-called ‘mature’ technological fields. When the radio pioneers such as Heinrich Hertz, Guglielmo Marconi, and Alexander Stepanovich Popov made their first experiments of wireless transmission more than a hundred years ago using spark-gap transmitters with simple coherer-detectors they did not care which ‘frequency band’ they were using, nor did they worry about their signals being ‘spectrally efficient’ or ‘band limited’. The world of radio frequency regulation was very simple then since regulations have not yet existed. Over the years this has dramatically changed. The frequency band was subdivided into small ‘boxes’ of. | ULTRA-WIDEBAND RADIO TECHNOLOGIES FOR COMMUNICATIONS LOCALIZATION AND SENSOR APPLICATIONS Edited by Reiner Thoma Reinhard H. Knochel Jurgen Sachs Ingolf Willms and Thomas Zwick Ultra-Wideband Radio Technologies for Communications Localization and Sensor Applications http 2648 Edited by Reiner Thoma Reinhard H. Knochel Jurgen Sachs Ingolf Willms and Thomas Zwick Contributors Rainer Moorfeld Adolf Finger Hanns-Ulrich Dehner Holger Jakel Martin Braun Friedrich K. Jondral María Dolores Pérez Guirao Josef A. Nossek Peter Russer Tobias Noll Amine Mezghani Michel T. Ivrlac Matthias Korb Farooq Mukhtar Hristomir Yordanov Johannes A. Russer Nuan Song Mike Wolf Martin Haardt Andreas Schenk Robert . Fischer Mohamed El-Hadidy Mohammed El-Absi Yoke Leen Sit Markus Kock Thomas Zwick Holger Blume Thomas Kaiser Markus Grimm Dirk Manteuffel Gholamreza Alirezaei Rudolf Mathar Daniel Bielefeld Rudolf Zetik Honghui Yan Elke Malz Snezhana Jovanoska Guowei Shen Reiner S. Thoma Rahmi Salman Thorsten Schultze Robert Tobera Hans-Ingolf Willms Lars Reichardt Malgorzata Janson Thomas Zwick Werner Wiesbeck Tobias DeiBler Jorn Thielecke Steffen Heuel Hermann Rohling Ingrid Hilger Katja Dahlke Gabriella Rimkus Christiane Geyer Frank Seifert Olaf Kosch Florian Thiel Matthias Hein Francesco Scotto di Clemente Ulrich Schwarz Marko Helbig Jurgen Sachs Henning Mextorf Frank Daschner Mike Kent Reinhard Knochel Alexander Esswein Robert Weigel Christian Carlowitz Martin Vossiek Stefan Heinen Ralf Wunderlich Markus Robens Martin Kmec Robert Weigel Thomas UBmuller Benjamin Sewiolo Mohamed Hamouda Rolf Kraemer Johann-Christoph Scheytt Yevgen Borokhovych Dayang Lin Michael Mirbach Thanawat Thiasiriphet Jurgen Lindner Wolfgang Menzel Hermann Schumacher Mario Leib Bernd Schleicher Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2013 InTech All chapters are Open Access distributed under the Creative Commons Attribution license which allows users to .