Download or read book La methode du recuit simule pour la conception des circuits electroniques adaptation et comparaison avec d autres methodes d optimisation written by Gérard Berthiau and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book La m thode du recuit simul pour la conception des circuits lectroniques written by Gérard Berthiau and published by . This book was released on 1994 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le problème de l'optimisation des performances d'un circuit consiste à déterminer des valeurs acceptables pour les paramètres du circuit (résistances, géométries de transistors) qui satisfassent au mieux des critères de fonctionnement imposés (temps de montée, largeur de bande fréquentielle). Cette tache se ramène à un problème d'optimisation multidimensionnelle non linéaire et/ou multicritère: on doit alors minimiser des fonctions objectifs à n variables dans un domaine hyper rectangulaire, avec éventuellement des contraintes d'égalité et/ou d'inégalité. Un problème équivalent est celui de la caractérisation de modèles de composants. Dans ce cas, les variables d'optimisation sont les paramètres du modèle et l'on cherche à minimiser une fonction construite sur l'erreur entre la réponse du modèle et les mesures expérimentales effectuées sur le composant. La méthode d'optimisation retenue pour résoudre ce type de problème est la méthode du recuit simule. Cette méthode, issue de l'optimisation combinatoire, a été adaptée et comparée à d'autres méthodes d'optimisation globale pour les problèmes à variables continues. Une stratégie efficace de discrétisation des variables a été proposée. Un ensemble de tests d'arrêt complémentaires ont été mis au point. Les différents paramètres de la méthode ont été réglés à l'aide de fonctions analytiques dont les minimums sont connus, classiquement utilisées dans la littérature. Le recuit simulé a, ensuite, été couplé à un simulateur électrique ouvert SPICE-PAC, dont la structure modulaire permet l'enchainement des simulations nécessaires pour l'optimisation de circuit. En outre, nous avons mis au point, pour les problèmes comportant un grand nombre de variables (jusqu'à 100), une technique de partitionnement qui permet de conserver une proportionnalité entre le temps de calcul et le nombre de variables. A des fins de comparaison, nous avons adapté, pour ces problèmes en variables continues, trois autres méthodes d'optimisation combinatoire la méthode du seuil, un algorithme génétique et la méthode de recherche tabou les essais ont été effectues sur les mêmes fonctions tests et les résultats permettent une première comparaison entre les méthodes pour les problèmes à variables continues. Enfin, notre programme de recuit simulé a été applique au traitement de signaux neutroniques associés à des capteurs fortement bruyants
Download or read book LA METHODE DU RECUIT SIMULE written by Patrick Siarry and published by . This book was released on 1986 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: PRESENTATION DES PRINCIPALES APPROCHES THEORIQUES DE L'ALGORITHME ET DE SES APPLICATIONS. APPLICATION DE LA METHODE DANS LE DOMAINE DE LA CONCEPTION ASSISTEE PAR ORDINATEUR DES CIRCUITS ELECTRONIQUES. LES RESULTATS PRESENTES POUR LE PLACEMENT DES CIRCUITS HYBRIDES DEMONTRENT QUE L'ALGORITHME EST PARTICULIEREMENT EFFICACE DANS TOUS LES CAS OU LA TECHNOLOGIE IMPOSE DES CONTRAINTES COMPLEXES ET EVOLUTIVES
Download or read book RECUIT SIMULE ET IMPLANTATION DES CIRCUITS ELECTRONIQUES written by BELHACHEMI.. OULDALI and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LE RECUIT SIMULE EST UNE METHODE D'OPTIMISATION QUI, POUR TROUVER DES SOLUTIONS OPTIMALES A UN SYSTEME COMPLEXE, L'ASSIMILE EN UN SYSTEME PHYSIQUE AYANT UN GRAND NOMBRE DE PARTICULES EN INTERACTION. CETTE ANALOGIE A PERMIS D'APPLIQUER CETTE METHODE DANS DES DOMAINES TRES DIVERS ET EN PARTICULIER POUR LA CONCEPTION DES CIRCUITS ELECTRONIQUES. CETTE ETUDE PORTE SUR L'APPLICATION DU RECUIT SIMULE POUR LE PLACEMENT ET LE ROUTAGE DES CIRCUITS HYBRIDES. NOUS EXPOSONS LA CONTRIBUTION QUE NOUS AVONS APPORTE DANS LA REALISATION D'UNE CHAINE COMPLETE DE CAO. L'ETUDE PORTE AUSSI SUR UN PROGRAMME GRAPHIQUE OU TABLEAU DE BORD DU RECUIT SIMULE QUI PERMET DE SUIVRE L'EVOLUTION, EN TEMPS REEL, LES DIFFERENTS PARAMETRES DE LA METHODE
Download or read book Analyse et synth se statistiques des circuits lectroniques written by Ahmed Zebbache and published by . This book was released on 1996 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans la conception des circuits électroniques les variations statistiques des valeurs des paramètres des circuits doivent être prises en compte car elles ont un impact sur la qualité des circuits fabriques. Ces fluctuations statistiques essentiellement dues au processus de fabrication des tolérances, induisent des variations dans les réponses des circuits fabriqués. Le rendement de fabrication, qui est la proportion des circuits fabriqués répondant à un ensemble de contraintes d'acceptabilité spécifiées par le concepteur, est d'un intérêt considérable. Obtenir un rendement acceptable est l'un des principaux objectifs d'un concepteur de circuits électroniques. La méthode de Monte-Carlo a été utilisée pour simuler les variations dans les paramètres des composants ainsi que pour estimer le rendement de fabrication. Cette méthode est choisie a cause de sa généralité et de sa faible dépendance des variables stochastiques. Un programme fondée sur cette méthode a été élaboré et couplé au simulateur SPICE-PAC dont la structure modulaire se prête mieux aux exigences de l'analyse statistiques. Lorsque le rendement de fabrication est faible, il est nécessaire de l'améliorer. C’est la méthode des centres de gravite qui a été utilisée pour optimiser le rendement. L’échantillonnage statistique est amélioré grâce à la méthode des points communs. Malgré que la méthode des centres de gravite soit robuste et d'une utilisation aisée, elle peut être piégée dans optimum local du rendement. Pour résoudre ce problème, nous avons propose une approche d'optimisation du rendement de fabrication qui combine la méthode des centres de gravite et la méthode du recuit simulé
Download or read book Analyse et synthese statistiques des circuits electroniques mise en oeuvre du simulateur ouvert SPICE PAC et de la methode du recuit simule written by Ahmed Zebbache and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimisation des performances des circuits lectroniques complexes Mise en oeuvre conjugu e de la m thode du recuit simul et du simulateur lectrique SPICE PAC written by Gérard BERTHIAU and published by . This book was released on 1991 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RAIRO written by and published by . This book was released on 2001 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: International journal devoted to pure and applied research on the use of scientific methods and information processing in business and industry. Articles may be in English or French.
Download or read book Computer Systems Science and Engineering written by and published by . This book was released on 1988 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Modelling Simulation written by and published by . This book was released on 1990 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book La m thode du recuit simul en lectronique written by Patrick Siarry and published by . This book was released on 1994 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metaheuristics written by Patrick Siarry and published by Springer. This book was released on 2016-12-24 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metaheuristics exhibit desirable properties like simplicity, easy parallelizability, and ready applicability to different types of optimization problems. After a comprehensive introduction to the field, the contributed chapters in this book include explanations of the main metaheuristics techniques, including simulated annealing, tabu search, evolutionary algorithms, artificial ants, and particle swarms, followed by chapters that demonstrate their applications to problems such as multiobjective optimization, logistics, vehicle routing, and air traffic management. The authors are leading researchers in this domain, with considerable teaching and applications experience, and the book will be of value to industrial practitioners, graduate students, and research academics.
Download or read book Glowworm Swarm Optimization written by Krishnanand N. Kaipa and published by Springer. This book was released on 2017-01-10 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive account of the glowworm swarm optimization (GSO) algorithm, including details of the underlying ideas, theoretical foundations, algorithm development, various applications, and MATLAB programs for the basic GSO algorithm. It also discusses several research problems at different levels of sophistication that can be attempted by interested researchers. The generality of the GSO algorithm is evident in its application to diverse problems ranging from optimization to robotics. Examples include computation of multiple optima, annual crop planning, cooperative exploration, distributed search, multiple source localization, contaminant boundary mapping, wireless sensor networks, clustering, knapsack, numerical integration, solving fixed point equations, solving systems of nonlinear equations, and engineering design optimization. The book is a valuable resource for researchers as well as graduate and undergraduate students in the area of swarm intelligence and computational intelligence and working on these topics.
Download or read book Programming for Electrical Engineers written by James C. Squire and published by Academic Press. This book was released on 2020-07-08 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Programming for Electrical Engineers: MATLAB and Spice introduces beginning engineering students to programming in Matlab and Spice through engaged, problem-based learning and dedicated electrical and computer engineering content. The book draws its problems and examples specifically from electrical and computer engineering, covering such topics as circuit analysis, signal processing, and filter design. It teaches relevant computational techniques in the context of solving common problems in electrical and computer engineering, including mesh and nodal analysis, Fourier transforms, and phasor analysis. Programming for Electrical Engineers: MATLAB and Spice is unique among MATLAB textbooks for its dual focus on introductory-level learning and discipline-specific content in electrical and computer engineering. No other textbook on the market currently targets this audience with the same attention to discipline-specific content and engaged learning practices. Although it is primarily an introduction to programming in MATLAB, the book also has a chapter on circuit simulation using Spice, and it includes materials required by ABET Accreditation reviews, such as information on ethics, professional development, and lifelong learning. - Discipline-specific: Introduces Electrical and Computer Engineering-specific topics, such as phasor analysis and complex exponentials, that are not covered in generic engineering Matlab texts - Accessible: Pedagogically appropriate for freshmen and sophomores with little or no prior programming experience - Scaffolded content: Addresses both script and functions but emphasizes the use of functions since scripts with non-scoped variables are less-commonly encountered after introductory courses - Problem-centric: Introduces MATLAB commands as needed to solve progressively more complex EE/ECE-specific problems, and includes over 100 embedded, in-chapter questions to check comprehension in stages and support active learning exercises in the classroom - Enrichment callouts: "Pro Tip" callouts cover common ABET topics, such as ethics and professional development, and "Digging Deeper" callouts provide optional, more detailed material for interested students
Download or read book Metaheuristics for Vehicle Routing Problems written by Nacima Labadie and published by John Wiley & Sons. This book was released on 2016-02-10 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to metaheuristics as applied to vehicle routing problems. Several implementations are given as illustrative examples, along with applications to several typical vehicle routing problems. As a first step, a general presentation intends to make the reader more familiar with the related field of logistics and combinatorial optimization. This preamble is completed with a description of significant heuristic methods classically used to provide feasible solutions quickly, and local improvement moves widely used to search for enhanced solutions. The overview of these fundamentals allows appreciating the core of the work devoted to an analysis of metaheuristic methods for vehicle routing problems. Those methods are exposed according to their feature of working either on a sequence of single solutions, or on a set of solutions, or even by hybridizing metaheuristic approaches with others kind of methods.
Download or read book Simulated Annealing written by Robert Azencott and published by Wiley-Interscience. This book was released on 1992 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited collection of papers, the result of an 18-month workshop held at France's Ecole Normale Superierure, covers the most current research on implementing the simulated algorithm on parallel computers. Professionals and students in mathematics, computer science, and electrical engineering will find theoretical results as well as actual simulations on existing parallel computers, sketching applications in discrete math, chip placement problems and spin glass models.
Download or read book ZnO Thin Films written by Paolo Mele and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films.
