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Dissertations / Theses on the topic 'OTDMA'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Kheder, Noha. "Experimental demonstration of OCDMA and OTDMA PONs with FEC and burst-mode reception." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19245.

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Passive optical networks (PONs) are a promising economic solution in delivering data to the end-user. We demonstrate experimentally the uplink of a spectral-amplitude-coded optical code division multiple access (SAC-OCDMA) and an optical time division multiple access (OTDMA) PON, with burst-mode reception. The receiver performs clock and data recovery (CDR), phase acquisition and forward-error-correction (FEC). Using FEC we demonstrate an error-free 7x622 Mbps uplink of an incoherent SAC-OCDMA PON, while operating at a rel
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2

Filho, Antonio Francisco Gomes Furtado. "Estudo do desempenho do Multiplexador/Demultiplexador add/dropbaseado na configuraÃÃo do InterferÃmetro de Michelson de fibras Ãpticas para aplicaÃÃes em sistemas OTDMA e OCDMA." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7784.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Neste trabalho, alÃm dos capÃtulos que envolvem a teoria e definiÃÃes, foi basicamente divido em trÃs estudos: Primeiro (capÃtulo 4), apresentamos uma investigaÃÃo numÃrica do desempenho de um filtro passa-banda totalmente Ãptico composto por um acoplador direcional duplo seguido de duas grades de Bragg simetricamente iguais gravadas nos seus braÃos de saÃda. Esta configuraÃÃo caracteriza um InterferÃmetro de Michelson com caracterÃsticas de um filtro add/drop. As car
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3

Furtado, Filho Antonio Francisco Gomes. "Estudo do desempenho do multiplexador/demultiplexador ADD/DROP baseado na configuração do interferômetro de Michelson de fibras ópticas para aplicações em sistemas OTDMA E OCDMA." reponame:Repositório Institucional da UFC, 2012. http://www.repositorio.ufc.br/handle/riufc/3820.

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FURTADO FILHO, A. F. G. Estudo do desempenho do multiplexador/demultiplexador ADD/DROP baseado na configuração do interferômetro de Michelson de fibras ópticas para aplicações em sistemas OTDMA E OCDMA. 2012. 109 f. Tese (Doutorado em Teleinformática) - Centro de Tecnologia, Universidade Federal do Ceará, Fortaleza, 2012.<br>Submitted by Marlene Sousa (mmarlene@ufc.br) on 2012-09-17T16:24:24Z No. of bitstreams: 1 2012_tese_afgfurtadofilho.pdf: 2441801 bytes, checksum: 1fb8b6d1533028de310b29a6ba1f70aa (MD5)<br>Approved for entry into archive by Marlene Sousa(mmarlene@ufc.br) on 2012-09-25T19:02
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Lima, Claudia Regina Oliveira de Paiva. "Predição linear não-tendenciosa otima." [s.n.], 1987. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307369.

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Orientador : Jose Ferreira Carvalho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Ciencia da Computação<br>Made available in DSpace on 2018-07-17T02:39:01Z (GMT). No. of bitstreams: 1 Lima_ClaudiaReginaOliveiradePaiva_M.pdf: 1779961 bytes, checksum: 17c87ee2e9de0e1f12f261755b16aa7a (MD5) Previous issue date: 1987<br>Resumo: Este trabalho tem por objetivo fazer uma revisão sobre as técnicas de prediço, sob o ângulo de visão de modelos lineares. Em uma primeira etapa, é mostrada a predição do vetor de parâmetros aleatórios nos modelos al
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Regis, Filho Luiz Augusto Vitoria. "Filtragem otima robusta em sistemas dinamicos." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261322.

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Orientador : Jose Claudio Geromel<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-03T22:17:16Z (GMT). No. of bitstreams: 1 RegisFilho_LuizAugustoVitoria_M.pdf: 492278 bytes, checksum: 283b8c233f75c4c78df376ae1ad45aee (MD5) Previous issue date: 2004<br>Mestrado
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6

Kupčiha, Lukáš. "Vzájemná konverze OTDM a WDM." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220326.

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The aim of this thesis was introducing the options of conversion between OTDM and WDM technologies. Since this issue is rather extensive, first of all the principle of optical transmission system is described. One chapter presents the effects influencing the optical transmissions. Material absorption, linear and nonlinear scattering and bending losses are mentioned in terms of fiber losses, followed by description of waveguide, chromatic and polarization-mode dispersion of optical fibers. Last part of the chapter presents nonlinear effects, including self-phase modulation, cross-phase modulati
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Végh, Zoltán. "Vzájemná konverze OTDM a WDM systémů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220657.

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The aim of the diploma thesis is to analyze the WDM and OTDM optical telecommunication networks and the possibility of conversion between these two multiplexing methods. In the first chapter were mentioned the basics of optical communication. The next chapter describes the optical fiber. Specifically, their types, linear and nonlinear optical characteristics whitch are limiting transmission e.g. attenuation, dispersion, refraction, FWM, SPM and XPM. Followed by a general description of the multiplexing systems used in optics and individual elements used in various multiplexing systems. The las
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Olofsson, Ivar. "Enhancements in LTE OTDOA Positioning for Multipath Environments." Thesis, Linköpings universitet, Kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131821.

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By using existing radio network infrastructure, a user can be positioned even where GPS and other positioning technologies lack coverage. The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference (RSTD) reports based on the Time of Arrival (TOA) for a Positioning Reference Signal (PRS). In the current reporting format, only one RSTD for each base station is considered, but for indoor environments this is easily biased due to fading and multipath issues, resulting in a Non-Line of Sight (NLOS) bias. With a rich User Equipment (UE) feedback that can represent the multipat
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Castro, Suzana Lima de Campos. "Algoritmo genetico aplicado a determinação otima de parametros." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307606.

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Orientador: Lucio Tunes dos Santos<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Científica<br>Made available in DSpace on 2018-07-19T02:36:37Z (GMT). No. of bitstreams: 1 Castro_SuzanaLimadeCampos_M.pdf: 1382178 bytes, checksum: 716b1bad6fba3a4e8ed12867940ed411 (MD5) Previous issue date: 1994<br>Resumo: A subrotina computacional BOX-QUACAN, desenvolvida por Friedlander, Martinez e Santos (1992) para resolver problemas de minimização de funções com restrições de canalização, tem sido muito utilizada por ser robusta e indicada
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Carvalho, Marcelo H. "Decomposição otima em orelhas para grafos matching covered." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276045.

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Orientador: Claudio L. Lucchesi<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Computação<br>Made available in DSpace on 2018-07-22T14:37:46Z (GMT). No. of bitstreams: 1 Carvalho_MarceloH_D.pdf: 3472839 bytes, checksum: 604447ee0052ba3daa1a6900cea3c290 (MD5) Previous issue date: 1997<br>Resumo: O assunto do qual se trata este trabalho se insere na área de teoria dos grafos, e mais especificamente de grafos matching covered, que são grafos conexos em que toda aresta pertence a um emparelhamento perfeito. L. Lovász desenvolveu toda a base da teoria dos grafos matching co
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Paucar, Casas Walter Jesus. "Concepção otima de sistemas elasto-acusticos interiores acoplados." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265126.

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Orientador: Renato Pavanello<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-23T16:29:26Z (GMT). No. of bitstreams: 1 PaucarCasas_WalterJesus_D.pdf: 11209231 bytes, checksum: ed76027cff17f4a62e9dfcff2f0e03d2 (MD5) Previous issue date: 1998<br>Resumo: Neste trabalho desenvolveram-se metodologias para a obtenção de formas ótimas em sistemas vibroacústicos acoplados, via mudança de parâmetros geométricos, usando a análise de sensibilidade e ferramentas de programação não linear. As equações matriciais do problema s
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Zanfelice, Fabio Rogerio. "Estrategia de contratação otima na comercialização de energia eletrica." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263139.

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Orientador: Paulo Sergio Franco Barbosa<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-09T22:55:20Z (GMT). No. of bitstreams: 1 Zanfelice_FabioRogerio_M.pdf: 1622123 bytes, checksum: a97f37ded8557a9e73605dcce3e6b3ea (MD5) Previous issue date: 2007<br>Resumo: A evolução deste trabalho de pesquisa foi pautada pelo desenvolvimento de uma metodologia que represente a atividade de comercialização de empresas de distribuição e comercialização de energia e indique o posicionamento destes agentes frente às altern
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13

Börner, Christof. "Taktrückgewinnung aus hochratigen optischen RZ-Datensignalen mittels differentieller optischer Signalverarbeitung /." München : Verl. Dr. Hut, 2008. http://d-nb.info/992163137/04.

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Gomes, Marco Aurelio Cazarotto 1984. "Filtragem otima para melhorar o desempenho de estimadores DOA-ML." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261946.

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Orientador: Amauri Lopes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-14T21:35:53Z (GMT). No. of bitstreams: 1 Gomes_MarcoAurelioCazarotto_M.pdf: 1012758 bytes, checksum: 0c2ca6c09e4123b277735dca0f50a107 (MD5) Previous issue date: 2009<br>Resumo: Abordamos o problema de estimação de direção de chegada (DOA) de ondas planas usando um arranjo de sensores. Na literatura encontramos diversos estimadores para DOA, porém estamos considerando apenas os estimadores de Máxima Verossimilhança (ML)
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15

Kroh, Marcel. "Semiconductor mode locked laser for high-speed OTDM transmission." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979584817.

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16

Kligerman, Alberto Sergio. "Operação otima de subsistemas hidrotermicos interligados utilizando programação dinamica estocastica dual." [s.n.], 1992. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261632.

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Orientadores: Secundino Soares Filho, Mario Veiga Ferraz Pereira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-14T04:45:56Z (GMT). No. of bitstreams: 1 Kligerman_AlbertoSergio_M.pdf: 5596579 bytes, checksum: 4dd54a1623c0c756a3f51636247b449f (MD5) Previous issue date: 1992<br>Resumo: O problema do planejamento da operação energética de médio prazo é determinar estratégias ótimas de geração térmica e intercâmbio entre subsistemas hidrotérmicos. Por ser um problema estocástico e de grande porte, a solução ó
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Costa, Andrea Lucia. "Determinação otima do intervalo entre as manutenções preventivas de equipamentos eletricos." reponame:Repositório Institucional da UFSC, 1995. http://repositorio.ufsc.br/handle/123456789/101494.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico. Programa de Pós-Graduação em Engenharia Elétrica<br>Made available in DSpace on 2013-07-15T21:15:41Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-08T19:32:26Z : No. of bitstreams: 1 101719.pdf: 58447211 bytes, checksum: 918c8d981f409f5e0fc58cd5c5469975 (MD5)<br>Análise do comportamento de equipamentos elétricos de potência, visando o planejamento de sistemas ou a avaliação do desempenho dos mesmos. Os algoritmos desenvolvidos baseiam-se nos processos de Markov e calculam a periodicidade para as manute
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Yazdani, Arash. "Contributions to optimal detection in OTDM and OCDMA optical receivers." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/398408.

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Recent developments in optical communication systems have increased the performance of optical networks. Low attenuation fiber optics, high spectral purity lasers and optical amplifiers, among others, are systems that have allowed to transport terabits per second across thousands of kilometers, in a more reliable, secure and efficient manner, compared to radiofrequency (RF) systems. New optical access network technologies such as EPON and GPON are also providing Gbit/s connectivity to customers in both the enterprise and consumer markets. This transport capacity provides enough data for the gr
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Phillips, Ian D. "OTDM network processing using all-optical and electro-optical devices." Thesis, Aston University, 1998. http://publications.aston.ac.uk/15370/.

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The current optical communications network consists of point-to-point optical transmission paths interconnected with relatively low-speed electronic switching and routing devices. As the demand for capacity increases, then higher speed electronic devices will become necessary. It is however hard to realise electronic chip-sets above 10 Gbit/s, and therefore to increase the achievable performance of the network, electro-optic and all-optic switching and routing architectures are being investigated. This thesis aims to provide a detailed experimental analysis of high-speed optical processing wit
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Verçosa, Carlson Antonio Mendes. "Localização de falhas estruturais utilizando metodos de ajuste de modelos por matriz otima." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263242.

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Orientador: Jose Roberto de França Arruda<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-20T07:00:12Z (GMT). No. of bitstreams: 1 Vercosa_CarlsonAntonioMendes_D.pdf: 30086773 bytes, checksum: ebc3ffb0fcde8fb3351e8d3cf09a7661 (MD5) Previous issue date: 1995<br>Resumo: A vida útil de um elemento estrutural é, em geral, abreviada devido a uma redução da capacidade de carga para a qual o elemento é inicialmente projetado. Em dinâmica estrutural esta redução chama-se falha estrutural. Falhas estruturais promovem a d
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Pereira, Carlos Alberto Nogueira. "Alocação otima de reguladores de tensão em redes de distribuição de energia eletrica." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/262013.

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Orientador: Carlos Alberto de Castro Junior<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-13T12:20:41Z (GMT). No. of bitstreams: 1 Pereira_CarlosAlbertoNogueira_M.pdf: 1167781 bytes, checksum: 59548f165acd2e595bebd984ef043c53 (MD5) Previous issue date: 2009<br>Resumo: Neste trabalho apresenta-se o desenvolvimento de um método heurístico para o dimensionamento e alocação de reguladores de tensão ao longo dos alimentadores primários de sistemas radiais de distribuição de energia elétrica, o
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Carvalho, Andrea Neves de. "Regulação otima robusta de sistemas lineares incertos sujeitos a restrições no estado e controle." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261283.

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Orientador: Basilio Ernesto de Almeida Milani<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-19T08:02:15Z (GMT). No. of bitstreams: 1 Carvalho_AndreaNevesde_M.pdf: 4883620 bytes, checksum: 50474d19ea1bfb1b2d29ba6aa7097280 (MD5) Previous issue date: 1994<br>Resumo: Neste trabalho é estudado o problema de regulação ótima robusta de sistemas lineares (A, B) discretos no tempo, incertos, sujeitos a restrições lineares simétricas no estado e controle e domínio de parâmetros incertos, definido por intervalo de
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Araujo, Ana Maria Souza de. "Metodos estatisticos para localização otima de estações de mensuração de poluição em rede fixa." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306731.

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Orientador: Armando Mario Infante<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Ciencia da Computação<br>Made available in DSpace on 2018-07-21T03:56:20Z (GMT). No. of bitstreams: 1 Araujo_AnaMariaSouzade_M.pdf: 2160413 bytes, checksum: 4513d700c7af62a8b3977389d69b5f05 (MD5) Previous issue date: 1996<br>Resurno: Neste trabalho o Planejamento de Experimentos Otimais é utilizado como metodologia para definir a localização ótima de novas estações de mensuração da poluição em rede fixa que necessita ser expandida ou contraída. Primeiramente
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Krummenauer, Rafael. "Filtragem otima na estimação de direção de chegada de ondas planas usando arranjo de sensores." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261948.

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Orientador: Amauri Lopes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-09T06:28:20Z (GMT). No. of bitstreams: 1 Krummenauer_Rafael_M.pdf: 1711180 bytes, checksum: e9aa73aac9d705c24c2bec02b202f76e (MD5) Previous issue date: 2007<br>Resumo: Esta dissertação trata do problema de estimação de direção de chegada (DOA) de ondas planas usando um arranjo linear uniforme de sensores. Estamos interessados em situações nas quais a relação sinal-ruido 'e baixa e o espaçamento angular entre as fo
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Bacalhau, Eduardo Tadeu 1982. "Metodos heuristicos para alocação otima de recursos de manutenção em redes de distribuição de energia eletrica." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258865.

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Orientadores: Christiano Lyra Filho, Celso Cavellucci<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-13T17:12:20Z (GMT). No. of bitstreams: 1 Bacalhau_EduardoTadeu_M.pdf: 2312425 bytes, checksum: c300ba31a847eef9ba5343cfd6548c0f (MD5) Previous issue date: 2009<br>Resumo: O trabalho aborda a alocação ótima de recursos para manutenção de redes de distribuição de energia elétrica. O modelo matemático do problema procura representar os componentes das redes, suas inter-relações para operação d
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Tavares, Pedro Miguel Marques. "Recuperação óptica de relógio em redes de elevado débito." Master's thesis, Universidade de Aveiro, 1999. http://hdl.handle.net/10773/17440.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Com o esperado aumento do tráfego e a consequente procura de maiores ritmos de transmissão, as redes de telecomunicações baseadas em fibra óptica integram progressivamente novos sistemas operando exclusivamente no domínio óptico, evitando, assim, a conversão para o domínio eléctrico. Os módulos para extracção totalmente Óptica de relógio são de especial importância, porque o sinal por eles gerado contém a informação de sincrorusmo necessária ao correcto funcionamento de procedimentos fundamentais, tais como a desmultiplexagem e a r
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Münster, Petr. "Parametry sítí FTTx." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233644.

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This thesis examines parameters of FTTx networks and possibilities for increases in limit values of some selected parameters. The first and second chapters describe the necessary theory for understanding the outcomes presented in the rest part of the work. In the practical part of this thesis, analysis of the condition of the optical fibers in the Czech Republic is provided. Based on the results, the impact of the polarization mode dispersion on optical access networks was assessed. The next part of this thesis is focused on the active optical networks design, depending on the cost of implemen
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Freitas, Ludmila de Souza. "Vida útil otima de projeto de edificações considerando consumo energético de construção e operação, sob a otica do ecodesign." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46145.

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Orientador: Prof. Dr. Aloísio Leoni Schmid<br>Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Artes, Comunicação e Design, Programa de Pós-Graduação em Design. Defesa: Curitiba, 21/02/2017<br>Inclui referências : f. 141-147<br>Área de concentração<br>Resumo: O crescente número de publicações e pesquisas sobre a sustentabilidade das edificações chama a atenção para o seu ciclo de vida e, nesse sentido, é necessária a determinação da durabilidade física dos componentes construtivos, a qual se pretende estender por toda a vida útil do projeto, evitando a necessidade de reposição
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Ellis, Andrew. "All optical networking beyond 10 Gbits/s OTDM networks based on electro-optic modulators and fibre ring lasers." Thesis, Aston University, 1997. http://publications.aston.ac.uk/7978/.

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This thesis examines options for high capacity all optical networks. Specifically optical time division multiplexed (OTDM) networks based on electro-optic modulators are investigated experimentally, whilst comparisons with alternative approaches are carried out. It is intended that the thesis will form the basis of comparison between optical time division multiplexed networks and the more mature approach of wavelength division multiplexed networks. Following an introduction to optical networking concepts, the required component technologies are discussed. In particular various optical pulse so
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Sosa, Blanca Rosa Maquera. "Codificação otima de padrões e rotulação de sinais via analise de correspondencia, e homeomorfismo entre subespaços de Hamming, Euclideano e Euclideano ponderado." [s.n.], 1993. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261085.

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Orientador: Reginaldo Palazzo Jr<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-18T19:37:18Z (GMT). No. of bitstreams: 1 Sosa_BlancaRosaMaquera_D.pdf: 7052283 bytes, checksum: 6b4ecc9d25d91f1051c1e50c21e84114 (MD5) Previous issue date: 1993<br>Resumo: Nesta tese desenvolvemos itens das áreas de Estatística, Matemática e Comunicações dentro da Engenharia Elétrica. Da área de Estatística, consideramos os itens da Análise de Correspondência, Reconhecimento de Padrões e Teoria de Decisão. Na área de Matemática, a T
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Kim, Jong-Kook. "Investigation of High-Nonlinearity Glass Fibers for Potential Applications in Ultrafast Nonlinear Fiber Devices." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28569.

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Nonlinear fiber devices have been attracting considerable attention in recent years, due to their inherent ultrafast response time and potential applications in optical communication systems. They usually require long fibers to generate sufficient nonlinear phase shifts, since nonlinearities of conventional silica-core silica-clad fibers are too low. These long devices, however, cause the serious problems of pulse walk-off, pulse broadening, and polarization fluctuation which are major limiting factors for response time, switching bandwidth, and maximum transmittable bit-rate. Therefore, short
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DANIELSSON, FILIP, and DANIEL STRÖMQVIST. "Working Proactive TowardsHigher OTDA case study at the operations department at ABB GA Products, investigating the possibility toenhance a more proactive way of work towardshigher OTD." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223976.

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33

Elias, Moacyr Jorge. "Determinação das condições de atividade otima, da estabilidade termica e da cinetica da hidrolise enzimatica de bromelina presente na casca e no talo do abacaxi (Ananas comosus L. Merril) variedade perola." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267036.

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Orientador: Elias Basile Tambourgi<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-15T00:12:34Z (GMT). No. of bitstreams: 1 Elias_MoacyrJorge_D.pdf: 3281919 bytes, checksum: a06d734eab8439e1da9e683c7b3eb667 (MD5) Previous issue date: 2010<br>Resumo: A bromelina, enzima presente no abacaxi, hidrolisa ligações peptídicas das proteínas; tem aplicação em diversas áreas envolvendo alimentos, medicina e nutrição animal. No abacaxi a bromelina está presente no talo, na polpa e na casca do fruto. Visando avaliar a bromel
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Yeh, Xin-Hong, and 葉信宏. "Study of 32GHz OTDM RZ Transmission." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/19672031280691307316.

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碩士<br>國立交通大學<br>光電工程所<br>91<br>Research of Optical time-division multiplexer (OTDM)become indispensable, since the demands for high bit rate in fiber transmission system. In this paper we demonstrate how to achieve a high-bit rate using OTDM. To generating basic pulse train we do simulation and experiment using DFB laser , and compression method are applied to get shorter pulse. Linear and nonlinear compression are utilized. First, linear compression accomplish by a high dispersion compensation fiber (DCF) to reduce the value of linear carrier frequency shift made by DFB laser called chirp. Fu
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Yeh, Hung-Ting, and 葉泓廷. "Hybrid OTDOA/AOA Location Estimation with IEEE802.11 WLAN Systems." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/42235934678126800065.

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碩士<br>國立交通大學<br>電機學院電信學程<br>104<br>Location estimation finds many applications in wireless networks. Many methods have been proposed to solve the problem. The observed-time-difference-of-arrival (OTDOA) method has been defined in long-time-evolution (LTE) systems for location service. In this thesis, we extend the use of the OTDOA method to IEEE 802.11 wireless local networks. Since many access points (APs) possess multiple antennas, allowing the estimation of signal angle-of-arrivals (AOAs), we then propose using a hybrid OTDOA/AOA localization scheme. Conventional hybrid OTDOA/AOA method use
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Chang, Rong, and 張鎔. "High-precision Localization with OTDOA, AOA/AOD, and DC-phase." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/t9kx2j.

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碩士<br>國立交通大學<br>電信工程研究所<br>105<br>Recently, a high-precision localization method has been proposed using the DC-phase in OFDM systems. Although this method is effective, it only considers the line-of-sight (LOS) scenario. Also, its computational complexity will be very high when used in outdoor environments. This thesis is aimed to solve these problems. First, a hybrid OTDOA and AOA/AOD method is used to obtain an initial estimate of the location. Then, the extended DC-phase method is proposed such that it can be used to refine the estimation in NLOS channel environments. Finally, a low comple
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GUO, YING-LIN, and 郭映麟. "Positioning and Tracking of Mobile Devices Based on OTDOA in Closed Space." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/tc8c68.

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碩士<br>國立高雄科技大學<br>電腦與通訊工程系<br>107<br>With the advancement of communication networks, the development of 4G networks is becoming more and more mature, and the applications of small-cell base stations are becoming more and more extensive. This thesis will explore the applications of the LTE-A (Long Term Evolution Advanced) network architecture in locating and tracking mobile devices in closed space. In own work, the Observation Time Difference of Arrival (OTDOA) method is used. To achieve the purpose of locating the mobile device, position estimate of the mobile device using the least square po-
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Shih-Yung, Tsai. "Study and fabrication of optical Splitter for Applying to OTDM system." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0021-2304200714392912.

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Tsai, Shih-Yung, and 蔡世雍. "Study and fabrication of optical Splitter for Applying to OTDM system." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/55485735322702279598.

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碩士<br>國立臺灣師範大學<br>光電科技研究所<br>95<br>In this thesis, we apply multimode interference integrated optical power splitter to the optical time division multiplexer system. And we try to fabricate the 1x(2N+1) optical splitter by sol-gel method. The multimode interference optical splitter is designed according to self-image phenomenon. And we apply delay line technique to OTDM system to obtain the generation of combining pulse train. Finally we fabricate glass waveguide on quartz by using sol-gel method.
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Yao, Yen-Ju, and 姚彥如. "NB-IoT Uplink Vector Signal Generator and Analyzer Design and NPRS Based OTDOA Positioning." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/33meqy.

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碩士<br>元智大學<br>通訊工程學系<br>106<br>3GPP completed the NB-IoT R14 standard in June 2017. The IoT service of telecom operators has been officially transferred, and NB-IoT has begun to flourish. Since both R&D and mass production require expensive equipment to verify their products. Therefore, in this thesis we have designed the uplink vector signal generator (VSG) and analyzer (VSA) algorithms according to NB-IoT R14 physical layer (PHY) specification. Then combined with the software-defined radio (SDR) platform, our testing platform can even achieve a performance close to commercial instruments, ma
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Kroh, Marcel [Verfasser]. "Semiconductor mode locked laser for high-speed OTDM transmission / vorgelegt von Marcel Kroh." 2006. http://d-nb.info/979584817/34.

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"All-optical devices for wavelength-division multiplexing (WDM) and optical time-division multiplexing (OTDM)." 2002. http://library.cuhk.edu.hk/record=b6073501.

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Wong Chi Sang.<br>"August 2002."<br>Thesis (Ph.D.)--Chinese University of Hong Kong, 2002.<br>Includes bibliographical references.<br>Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.<br>Mode of access: World Wide Web.<br>Abstracts in English and Chinese.
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Chang, Li Yun, and 張力允. "Delay-of-Transmission Aware Dynamic Traffic Grooming in OTDM/OFDM-based Sliceable Elastic Optical Networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/hzn5h3.

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Wang, Tao Yuan, and 王道元. "Quality-of-Transmission Aware Dynamic Traffic Grooming in OTDM/OFDM-based Sliceable Elastic Optical Networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/w5b4x2.

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"Channel-tunable mode-locked laser transmitter for OTDM networks and modeling of mode-locked semiconductor laser." 2000. http://library.cuhk.edu.hk/record=b5890375.

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by Hung Wai.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2000.<br>Includes bibliographical references (leaves 69-[73]).<br>Abstracts in English and Chinese.<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- All Optical Multi-Access Network --- p.1<br>Chapter 1.2 --- Multi-access Techniques --- p.2<br>Chapter 1.2.1 --- Wavelength-Division Multi-access (WDMA) --- p.2<br>Chapter 1.2.2 --- Subcarrier Multi-Access (SCMA) --- p.3<br>Chapter 1.2.3 --- Time-Division Multi-Access(TDMA) --- p.3<br>Chapter 1.3 --- Numerical Modelling of Semiconductor Mode-locked laser --- p.4<br>C
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46

YANEZ, MAURICIO. "Components and Techniques for High-Speed Optical Communications." Thesis, 2011. http://hdl.handle.net/1974/6592.

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Electroabsorption modulators (EAMs) are fundamental components in optical communication systems. Their response is governed by a set of parameters inherent to their internal structure and by the external electrical components used to drive them. The first part of this thesis discusses a new method for the extraction of values for these parameters. The use of EAMs as both optical modulators and photodetectors is exploited for the purpose of parameter extraction. The proposed method allows the estimation of the parameters which govern the internal frequency response of EAMs without any knowledge
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Owsiak, Mark. "A Comparison and Outline of Tolerances in Performing Optical Time Division Multiplexing using Electro-Absorption Modulators." Thesis, 2010. http://hdl.handle.net/1974/5679.

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As high bandwidth applications continue to emerge, investigation in technologies that will increase transmission capacity become necessary. Of these technologies, Optical Time Division Multiplexing (OTDM) has been presented as a possible solution, supporting a next generation bit rate of 160 Gbit/s. To perform the demultiplexing task, the use of tandem electro-absorption modulators (EAMs) has been widely studied, and due to its benefits was chosen as the topology of this thesis. To create an effective model of an OTDM system, the vector based mathematical simulation tool MatLab is used. Care w
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Lobo, Clara Isabel Alves Campos. "Janelas plug-in para o estimador do núcleo da densidade baseadas nas funções de Hermite." Master's thesis, 2019. http://hdl.handle.net/10316/87889.

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Dissertação de Mestrado em Matemática apresentada à Faculdade de Ciências e Tecnologia<br>A estimação da função densidade é um assunto muito estudado na estatística. Nesta dissertação, iremos recorrer ao estimador do núcleo, que depende do núcleo, K, e da janela h, para a estimação de uma função densidade f, porém, uma vez que a escolha da janela é mais relevante do que a escolha K, iremos desenvolver esta escolha ao longo da dissertação. Sob certas condições, provaremos a existência de uma janela ótima que consiste no minimizante do erro quadrático médio integrado, MISE, do estimador do núcle
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