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ECWT: Linear Transmitter Architecture Using a 1-Bit (Sigma)(Delta)
Linear transmitter architecture using a 1-bit I.Hibon1,2, C.Berland1, D.Pache2, M.Villegas1, D.Belot2 , V.Le Goascoz2 1 ESYCOM-ESIEE, Cité Descartes, 2 bd Blaise Pascal, 93162 Noisy le grand, France 2 STMicroelectronics, 850 rue Jean Monnet, 38926 Crolles, France Abstract -- Linearity of transmitter is a difficult point to achieve with non constant envelope modulation. The simplest solution is t
ECWT: Design and Implementation of a Chaotic Codec
Design and implementation of a chaotic codec Safwan EL ASSAD, Chadi TARHINI Ecole polytechnique de l'université de Nantes, Rue Christian Pauc BP 50609 Nantes Cedex 3, France Tel: (33) 2 40 68 30 36 Fax: (33) 2 40 68 32 32 Email: safwan.elassad@univ-nantes.fr Abstract __ In this paper, we propose a secure spread spectrum communication systems, using chaotic spreading sequences. The main advantages
ECWT: A Gaussian Beam Antenna Based on an Open Resonator
A Gaussian Beam Antenna Based on an Open Resonator G. Di Massa,L. Boccia, G. Amendola Università della Calabria DEIS Via P. Bucci 87036 Rende (CS) Italy appropriate reactance [7] . The equivalent circuit of the cavity is shown in fig.2 where L0 l 0 / 4 is the cavity inductance, Furthermore, Abstract -- In the present work a novel Gaussian beam antenna is presented. The antenna is based on a hal
ECWT: High Gain Microstrip Antenna Element and Array on Low and High Permittivity Substrate
High Gain Microstrip Antenna Element and Array on Low and High Permittivity Substrate A. Abdel Rahman 1, A. K. Verma2 and A. S. Omar1 adel@iesk.et.uni-magdeburg.de, anand48@bol.net.in, a.omar@ieee.org 1 Microwave and Communication Engineering, University of Magdeburg, Magdeburg, Germany 2 Department of Electronic Science,University of Delhi South Campus, New Delhi-110021, India horn could be pyra
ECWT: Adaptive Equalization for Digital Channels RBF Neural Network
Adaptive Equalization For Digital Channels RBF Neural Network Rima ASSAF1, Safwan EL ASSAD2, and Youssef HARKOUSS1 2 Ecole polytechnique de l'université de Nantes, Rue Christian Pauc BP 50609 Nantes Cedex 3, France Tel:(33) 2 40 68 30 36 Fax:(33) 2 40 68 32 32 E-mail: safwan.elassad@polytech.univ-nantes.fr 1 Université Libanaise, Faculté de Génie-Branche III, Rue de l'aéroport, Beyrouth, Liban. e
ECWT: Joint TOA/DOA Measurements for Spatio-Temporal Characteristics of 2.4 GHz Indoor Propagation Channel
Joint TOA/DOA Measurements for Spatio-Temporal Characteristics of 2.4 GHz Indoor Propagation Channel Van Yem VU, A. Judson BRAGA, Bernard HUYART and Xavier BEGAUD GET-Telecom Paris CNRS UMR 5141, 46 rue Barrault 75634 Paris cedex 13 Tel: ++ 33 (0) 1 45 817 222, Fax: ++ 33 (0) 1 45 890 020 E-mails: vanvu@enst.fr, judson@enst.fr, huyart@enst.fr, and begaud@enst.fr Abstract - The aim of this paper i
ECWT: A New UWB Antenna with Excellent Time Domain Characteristics
A new UWB antenna with excellent time domain characteristics. Lye-Whatt Chua Thales Research and Technology (UK) Limited, Worton Drive, Reading, Berkshire, United Kingdom, RG2 0SB, Tel. +44 (0)118 923 8331, Fax +44 (0)118 923 8399, email. lye-whatt.chua@thalesgroup.com Abstract - Description and performance of a novel physically small UWB omnidirectional antenna are presented. Greater than an oct
ECWT: Reconfigurable Mixed-Signal Single-Chip Transmitter for Multistandard-Terminals
Reconfigurable Mixed-Signal Single-Chip Transmitter for Multistandard-Terminals Georg Strasser1 , Gernot Hueber2 , Linus Maurer3 , Thomas Bauernfeind2 , Simon Martin4 , and Andreas Springer1 1 LCM GmbH, Altenbergerstrasse 69, 4040 Linz, Austria, 0043/70/757 868-170, georg.strasser@lcm.at 2 Research Institute for Integrated Circuits (RIIC), University of Linz, Austria 3 Dice - Danube Integrated Ci
ECWT: System Concepts Dedicated to UWB Transmitter
System Concepts dedicated to UWB Transmitter David Marchaland , Martine Villegas , Genevi` ve Baudoin , Carlo Tinella and Didier Belot e ESIEE ESYCOM Cit´ Descartes, 2 Bd Blaise Pascal, F93162 Noisy-le-Grand Cedex e STMicroelectronics 850 rue Jean Monnet, F38926 Crolles Cedex Email: d.marchaland@esiee.fr, carlo.tinella@st.com Abstract-- This paper introduces new system concepts for an UW
ECWT: A Direct Wireless Signals Receivers Architecture with Noise Sources Modeling
A Direct Wireless Signals Receivers Architecture with Noise Sources Modeling M. Capodiferro, G. Avitabile, N. Lofù Politecnico di Bari, DEE, via E. Orabona 4, 70125 Bari, Italy, tel.+390805963854 Furthermore an alternative equation can be developed, relating the sampling frequency, fs, to the RF signal carrier frequency, fc: fs = 4 fc 1 + 2m Abstract -- The paper focuses on the modeling of the no