Input Matrices
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Damped Jacobi Methods Based on Two Different Matrices for Signal Detection in Massive MIMO Uplink
Abstract For massive multiple-input multiple-output (m-MIMO) uplink, the performances of the linear minimum mean-square error (MMSE) detector are considered near optimal, and they occupy benchmark place for most linear iterative detectors. However, the MMSE algorithm is known by its load computational complexity due to the implication of large-scale matrix i
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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2. Uma Nota Sobre Consumo Energético, Emissões, Renda e Emprego na Cadeia de Soja no Brasil
Resumo Este artigo, com base na desagregação das matrizes energéticas de 2000 a 2014, compatíveis com as matrizes insumo-produto do Brasil, aponta que a Cadeia Soja no agronegócio responde por 12,70% do PIB, 12,10% dos empregos, 9,80% do consumo de energia e 8,70% das emissões de CO2. Verificou-se, uma mudança estrutural pautada pela expansão do prod
Rev. Bras. Econ.. Publicado em: 25/11/2019
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3. Macrodinâmica à Keynesiana : uma travessia com consistência entre fluxos e estoques a partir do encadeamento de curtos períodos do multiplicador / Keynesian-style macrodinamics : a stock-flow consistent traverse throught the enchainment of short multiplier periods
This thesis is divided into three parts. The first one discusses the short period behind the traditional autonomous expenditure multiplier, in a way that exposes the major macroeconomic aggregates and their interconnections; at this point the separation between the autonomous and induced parcels with respect to income is crucial. A second chapter, compoundin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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4. Aplicación de herramientas computacionales al estudio morfotaxonómico del género Merremia (Convolvulaceae) en Venezuela
Abstract The implementation of software is an alternative to help with objective characterization of taxa. In a review of Merremia for Venezuela the language and software of the DELTA system were used. To define the table of characters/states, published descriptions of the taxa recorded in Venezuela were analyzed and compared with the observed variability in
Rodriguésia. Publicado em: 2010-12
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5. Seismic data inversion by cross-hole tomography using geometrically uniform spatial coverage
One of the inversion schemes most employed in seismic tomography processing is least squares and derived algorithms, using as input data the vector of first arrivals. A division of the whole space between sources and receivers is performed, constructing a pixel model with its elements of the same size. Spatial coverage is defined, then, as the sum of travele
Revista Brasileira de Geofísica. Publicado em: 2010-03
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6. Códigos LDPC quaternários aplicados à técnica de transmissão OFDM / Quaternary LDPC codes applied to OFDM transmission technique
This dissertation addresses the study of error correcting codes based on sparse non-binary matrices. The LDPC (Low Density Parity Check) codes constitute a efficient family of codes generated by sparse parity check matrices and it is considered as one of the classes of codes that presents the best performance in digital communications systems. LDPC codes ove
Publicado em: 2010
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7. Um estudo sobre métodos de Kernel para classificação e agrupamento de dados
The learning machines project involves modelling a set of samples based on the mapping performance of the input-output pairs. The group of samples submitted to training provides information for determining the parameters of the model. And the validation and/or test group evaluates the performance of the classifier on its generalization ability. However, the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2009
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8. Uma metodologia pra construção de matrizes regionais compatíveis o RAS modificado agregado: uma aplicação para as grandes regiões do Brasil em 2006.
Este trabalho apresenta uma metodologia para a estimação de Matrizes de Relações Intersetoriais (MRIs) Regionais compatíveis. O modelo proposto consiste em uma modificação no método biproporcional RAS, mediante aplicação de fatores de correção, de maneira que, além da compatibilidade, sejam preservados os critérios de consistência e coerência
Publicado em: 2009
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9. Comparison of different identification techniques of vertical structural dynamics of twin-wheeled telescopic landing gear.
The main purpose of this work is to model dynamically the latero-torsional response of the structure of a landing gear using identification techniques. The emphasis is placed on identifying this motion on aircraft twin-wheeled telescopic main landing gears. Between the many possible model structures, a linear polynomial ARX and ARMAX model structures and a s
Publicado em: 2009
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10. Exportação e consumo de energia elétrica: uma análise baseada na integração de modelos econométrico e de insumo-produto inter-regional para Minas Gerais e o restante do Brasil
The main aim of this research is to quantify sectorial, regional and global impacts upon electric energy consumption when variations at exports component of Minas Gerais and the rest of Brazil occurs. In order to reach this aim it will be used an integration of econometric time series and input-output models. To reach this objective is necessary to construct
Publicado em: 2008
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11. EstimaÃÃo SintÃtica de Matrizes Origem/Destino a partir de Contagens VolumÃtricas em Ãreas com Controle do TrÃfego em Tempo Real com o AuxÃlio do QueensOD / SYNTHETIC ESTIMATION OF ORIGIN/DESTINATION MATRICES BASED ON TRAFFIC COUNTS IN AREAS WITH REAL-TIME TRAFFIC CONTROL USINGQUEENSOD
Since 2000, Fortaleza has a modern urban traffic control system (CTAFOR) that, although efficiently reaching its operational objectives in controlling the urban traffic, does not solve all the congestion problems on the network. One way of improving the performance of such a system would be to gather precise information about the travel behavior within the a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/07/2007
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12. Análise estrutural do emprego formal e informal na economia brasileira / Structural analysis of the formal and informal jobs in the Brazilian economy
The reorganization of the Brazilian economy, in the globalization process, has brought out changes in its productive structure, and, consequently, changes in the job market. These changes had impact on the employment at the sectoral level, with great concerns related to the labor relations and to the growing unemployment rates. In the 1990s, the change in th
Publicado em: 2006