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108 results on '"Djeddou, Mustapha"'

3. Narrowband Sensor-Antenna Based on an Interdigital Capacitor

Author

Khelladi, Rafik, Djeddou, Mustapha, Ghanem, Farid, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Bououden, Sofiane, editor, Chadli, Mohammed, editor, Ziani, Salim, editor, and Zelinka, Ivan, editor

Published
2021
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12. Micro-Doppler Classification for Ground Surveillance Radar Using Speech Recognition Tools

Author

Yessad, Dalila, Amrouche, Abderrahmane, Debyeche, Mohamed, Djeddou, Mustapha, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, San Martin, César, editor, and Kim, Sang-Woon, editor

Published
2011
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20. Maximum likelihood angle-frequency estimation in partially known correlated noise for low-elevation targets

Author

Djeddou, Mustapha, Belouchrani, Adel, and Aouada, Said

Subjects
Electromagnetic noise -- Analysis, Doppler effect -- Analysis, Maximum likelihood estimates (Statistics) -- Analysis, Business, Computers, Electronics, Electronics and electrical industries
Abstract

The problem of joint direction of arrival and Doppler frequency estimation using an array in partially known additive noise is addressed. A specular reflection model with a radar cross-section fluctuating from one pulse repetition interval to another is considered.

Published
2005

37. Multi-Metric Based Face Identification with Multi Configuration LBP Descriptor

Author

Temmani Khadidja, Rabai Mohammed, and Djeddou Mustapha

Subjects
Normalization (statistics), business.industry, Computer science, Local binary patterns, Pattern recognition, computer.software_genre, Identification (information), Modal, Simple (abstract algebra), Face (geometry), Metric (mathematics), Artificial intelligence, Data mining, Performance improvement, business, computer
Abstract

This paper deals with the performance improvement of a mono modal face identification. A statistical study of various structures of the LBPs (Local Binary Patterns) features associated to two metrics is performed to find out those committing errors on different subjects. Then, during the identification stage, these optimal variants are used, and a simple score level fusion is adopted. The score fusion is done after min-max normalization. The main contribution of this paper consists in the association of multiple LBP schemes with different metrics using simple fusion operation. The overall identification rating up to 99% using AT&T database is achieved.

Published
2012

44. Dual-band sensor–antenna design for low energy consumption/cost wireless sensor nodes.

Author

Khelladi, Rafik, Ghanem, Farid, Djeddou, Mustapha, and Nedil, Mourad

Subjects
WIRELESS sensor networks, WIRELESS sensor nodes, ENERGY consumption, CAPACITIVE sensors, ANTENNA arrays
Abstract

Wireless sensor networks (WSNs) consist of nodes with a limited power source. Reducing the energy consumption is an effective way to extend the lifespan of the sensor node. In this contribution, a new approach of designing of a new class radio frequency sensor–antenna for low energy consumption and low-cost wireless sensor nodes is proposed. Unlike the architecture of a conventional wireless sensor node, the proposed approach does not require any processor device that consumes power. It consists of integrating a capacitive sensor in a narrowband antenna that can send raw information, through its operating frequency which can be tuned depending on the value of the physical parameter to measure. As a result, a corresponding table between the resonant frequency of the sensor–antenna and the measured physical parameter is obtained. Furthermore, by using a dual-band antenna, the proposed configuration is able to measure, simultaneously, two physical parameters. A prototype of the sensor–antenna has been simulated and its behaviour has been validated with measurements. From the obtained results, it can be noted that the use of the proposed sensor–antenna can be a good alternative to reduce considerably the complexity and hence the cost of wireless sensor nodes for WSN applications. [ABSTRACT FROM AUTHOR]

Published
2019
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49. Joint TOA Estimation and NLOS Identification for UWB Localization Systems

Author

Maali, Abdelmadjid, Mesloub, Ammar, Djeddou, Mustapha, Mimoun, Hassane, Baudoin, Geneviève, Ouldali, Abdelaziz, Communications Systems Laboratory, EMP-Algiers, Applied Mathematics Laboratory [EMP - Algiers], Ecole Militaire Polytechnique [Alger] (EMP), Ministère de l'Enseignement Supérieur et de la Recherche Scientifique [Algérie] (MESRS)-Ministère de la Défense Nationale [Algérie]-Ministère de l'Enseignement Supérieur et de la Recherche Scientifique [Algérie] (MESRS)-Ministère de la Défense Nationale [Algérie], Electronique, Systèmes de communication et Microsystèmes (ESYCOM), Conservatoire National des Arts et Métiers [CNAM] (CNAM), and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Université Paris-Est Marne-la-Vallée (UPEM)-ESIEE Paris

Subjects
Signal processing, Computer simulation, Computer science, Speech recognition, [SPI.TRON]Engineering Sciences [physics]/Electronics, Non-line-of-sight propagation, Identification (information), [SPI]Engineering Sciences [physics], Signal-to-noise ratio, Computer Science::Networking and Internet Architecture, Wireless sensor network, Algorithm, Energy (signal processing), Multipath propagation, ComputingMilieux_MISCELLANEOUS
Abstract

In this paper, we propose a new joint time-of-arrival estimation and non-line-of-sight identification approach for ultra-wideband wireless sensor network applications. We use an energy-based time-of-arrival estimation algorithm. The non-line-of-sight detection is based on the direct path to the strongest multipath components ratio of the received signal folded version of the energy-based time-of-arrival estimation algorithm. The non-line-of-sight information is used in the weighted least-squares localization algorithm. The channel models residential LOS and residential NLOS of the standard IEEE802.15.4a are used. Numerical simulations results show that the correct identification of channel models with the proposed approach is better than those based on joint likelihood ratio and the location accuracy obtained by weighted least-squares algorithm using non-line-of-sight information is higher than that obtained by least-square algorithm.

Published
2009

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