A Many-Core Overlay for High-Performance Embedded Computing on FPGAs

In this work, we propose a configurable many-core overlay for high-performance embedded computing. The size of internal memory, supported operations and number of ports can be configured independently for each core of the overlay. The overlay was evaluated with matrix multiplication, LU decomposition and Fast-Fourier Transform (FFT) on a ZYNQ-7020 FPGA platform. The results show that using a system-level many-core overlay avoids complex hardware design and still provides good performance results.Comment: Presented at First International Workshop on FPGAs for Software Programmers (FSP 2014) (arXiv:1408.4423

Design of a Multiband Full-Rate Ultra-Wideband Receiver in FPGA

MultiBand OFDM (MB-OFDM) UWB [1] is a short-range promising wireless technology for high data rate communications up to 480 Mbps. In this paper, we have designed and implemented in an Virtex-6 FPGA an MB-OFDM UWB receiver for the highest data rate of 480 Mbps. To test the system, we have also implemented an MB-OFDM transmitter and an AWGN generator in VHDL and determined the bit error rates at the receiver running in an FPGA

METODOLOGIAS ATIVAS NOS CURSOS DE DIREITO: NOTAS ACERCA DA UTILIZAÇÃO DO MÉTODO DO CASO

O objeto do trabalho é tratar das possibilidades de aplicação do método do caso no ensino do Direito, de maneira compatível com a dogmática jurídica, por meio de abordagem qualitativa e procedimento bibliográfico. A pesquisa busca apresentar uma alternativa viável, já testada, como forma de resolver o problema identificado, qual seja o distanciamento entre a realidade e a educação jurídica teórico-conceitual atualmente praticada. Estabelecer metodologias ativas, com a participação dos alunos no processo de aprendizagem, é o caminho já identificado no campo da pedagogia. E na área do Direito, o método do caso é uma alternativa, dessa espécie, já devidamente corroborada. A aplicação desse método deve trazer significativos resultados na aprendizagem e na compreensão do Direito, se adequadamente utilizada

XtokaxtikoX: a stochastic computing-based autonomous cyber-physical system

This paper presents XtokaxtikoX, a fully autonomous cyber-physical system employing only stochastic arithmetic to perform computations on its data-path. Traditional implementations of stochastic computing systems benefit from fast and compact implementation of arithmetic operators, and high tolerance to errors, but depend heavily on the conversion between stochastic bitstreams and binary to implement many parts of the system. Furthermore, if a system requires any interaction with analog electronic components it must have additional ADC/DAC conversion circuitry, which further increases the complexity of the system. Conversely, the proposed work is able to directly translate analog signals into stochastic bitstreams, process the stochastic bitstreams and finally control analog actuators relying only on the information on the stochastic bitstreams. Details on the architectures to accomplish such functionality are presented as well as other stochastic arithmetic units. This paper also presents a small stochastic computing-based autonomous cyber-physical system implemented on a Cyclone IV FPGA to carry out a proof-of-concept.info:eu-repo/semantics/publishedVersio

A review of synthetic-aperture radar image formation algorithms and implementations: a computational perspective

Designing synthetic-aperture radar image formation systems can be challenging due to the numerous options of algorithms and devices that can be used. There are many SAR image formation algorithms, such as backprojection, matched-filter, polar format, Range–Doppler and chirp scaling algorithms. Each algorithm presents its own advantages and disadvantages considering efficiency and image quality; thus, we aim to introduce some of the most common SAR image formation algorithms and compare them based on these two aspects. Depending on the requisites of each individual system and implementation, there are many device options to choose from, for in stance, FPGAs, GPUs, CPUs, many-core CPUs, and microcontrollers. We present a review of the state of the art of SAR imaging systems implementations. We also compare such implementations in terms of power consumption, execution time, and image quality for the different algorithms used.info:eu-repo/semantics/publishedVersio

Energy-efficient and real-time wearable for wellbeing-monitoring IoT system based on SoC-FPGA

Wearable devices used for personal monitoring applications have been improved over the last decades. However, these devices are limited in terms of size, processing capability and power consumption. This paper proposes an efficient hardware/software embedded system for monitoring bio-signals in real time, including a heart rate calculator using PPG and an emotion classifier from EEG. The system is suitable for outpatient clinic applications requiring data transfers to external medical staff. The proposed solution contributes with an effective alternative to the traditional approach of processing bio-signals offline by proposing a SoC-FPGA based system that is able to fully process the signals locally at the node. Two sub-systems were developed targeting a Zynq 7010 device and integrating custom hardware IP cores that accelerate the processing of the most complex tasks. The PPG sub-system implements an autocorrelation peak detection algorithm to calculate heart rate values. The EEG sub-system consists of a KNN emotion classifier of preprocessed EEG features. This work overcomes the processing limitations of microcontrollers and general-purpose units, presenting a scalable and autonomous wearable solution with high processing capability and real-time response.info:eu-repo/semantics/publishedVersio

A RECOMENDAÇÃO Nº56 DO CONSELHO NACIONAL DA MAGISTRATURA: UMA ANÁLISE DA RECUPERAÇÃO EMPRESARIAL E DA FUNÇÃO SOCIAL DA EMPRESA

RESUMOO presente artigo faz uma abordagem sistêmica sobre a Resolução nº 56 do Conselho Nacional da Magistratura, a qual inicialmente irá analisar a crise de efetividade processual decorrente do fato de que a mesma recomenda a todos os magistrados responsáveis pelo processamento e julgamento dos processos de recuperação empresarial e falências, de varas especializadas ou não, que promovam, sempre que possível, nos termos da Lei nº 13.105/2015 e da Lei nº 13.140/2015, o uso da mediação, de forma a auxiliar a resolução de todo e qualquer conflito entre o empresário/sociedade, em recuperação ou falidos, e seus credores, fornecedores, sócios, acionistas e terceiros interessados no processo. Assim, por meio da mediação, o vínculo entre as partes pode ser restabelecido ou criado e elas mesmas poderão chegar a um acordo com benefícios mútuos. PALAVRAS-CHAVE: Mediação; Crise no judiciário; Teoria do conflito; Métodos adequados de resolução de conflitos; Negociação distributiva. ABSTRACTThis article takes a systemic approach to Resolution No. 56 of the National Council of the Judiciary, which will initially analyze the crisis of procedural effectiveness arising from the fact that it recommends to all magistrates responsible for processing and prosecuting court cases. corporate recovery and bankruptcies, whether specialized or not, that promote, whenever possible, under Law No. 13.105 / 2015 and Law No. 13.140 / 2015, the use of mediation to assist in the resolution of any and all conflicts. between the recovering or bankrupt businessman / society, and their creditors, suppliers, partners, shareholders and third parties interested in the process. Thus, through mediation, the bond between the parties can be restored or created and they themselves can come to an agreement with mutual benefits. KEYWORDS: Mediation, Judicial crisis, Conflict theory, Appropriate methods of conflict resolution, Distributive negotiatio