Digital Signal Processing and Applications with the TMS320C6713 and TMS320C6416 DSK

Chassaing, Rulph; Reay, D.S.

doi:10.1002/9780470238141

Cited by 50 publications

(35 citation statements)

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“…Derivado da DFT, é utilizado em situações nas quais existe a necessidade de identificar harmônicos presentes em sinais (CHASSAING & REAY, 2008). Entretanto, quando comparado com a DFT e até mesmo com a FFT, apresenta maior simplicidade de implementação e requer menor capacidade computacional, tornando--se uma excelente alternativa quando se deseja produzir um hardware dispondo de poucos recursos.…”

Section: O Algoritmo De Goertzelunclassified

Análise Da Aplicabilidade Do Filtro Digital De Goertzel Na Medição De Desequilíbrios De Tensão

Lima

2017

HOLOS

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Este artigo apresenta a utilização de um algoritmo simples de detecção de frequências no cálculo do Fator de Desequilíbrio de Tensão. O algoritmo de Goertzel permite que sejam encontradas, em um sinal distorcido, a amplitude e a fase de uma harmônica específica, sem requerer grande capacidade de armazenamento ou de processamento. Dessa forma, é possível implementar o método das componentes simétricas para o cálculo do fator de desequilíbrio de tensão, utilizando o algoritmo de Goertzel para obter o ângulo de fase e a amplitude da componente fundamental das tensões. A simulação é feita através da ferramenta Scilab. São gerados sinais que correspondem às tensões desequilibradas, tanto por módulo como por ângulo. O programa principal é implementado de forma a fornecer o valor do fator de desequilíbrio para diversas situações. Em seguida são plotados gráficos com as formas de onda das tensões e com os respectivos fasores. A análise dos resultados mostra a simplicidade, utilidade e viabilidade do uso do filtro de Goertzel em aplicações relacionadas com a qualidade da energia elétrica, permitindo que, com menor investimento em hardware, seja possível projetar equipamentos capazes de detectar e mensurar desequilíbrios de forma mais confiável e generalista. PALAVRAS--CHAVE:Qualidade de energia, Desequilíbrio de tensão, Algoritmo de Goertzel, Instalações elétricas. ANALYSIS OF APPLICABILITY OF GOERTZEL DIGITAL FILTER IN MEASUREMENT OF VOLTAGE UNBALANCES ABSTRACTThis paper presents the use of a simple frequency detection algorithm in the calculation the Voltage Unbalance Factor. The Goertzel's algorithm allows the amplitude and phase of a specific harmonic can be found in a distorted signal without requiring large storage or processing capacity. Thus, it is possible to implement the symmetric components method to calculate the voltage unbalance factor using the Goertzel algorithm to obtain the phase angle and amplitude of the fundamental component of the voltages. The simulation is done through the Scilab tool. Signals are generated that correspond to the unbalanced voltages, both by module and by angle. The main program is implemented in order to provide the value of the unbalance factor for several situations. Then graphs are plotted with the waveforms of the voltages and their phasors. The analysis of the results shows the simplicity, usefulness and feasibility of the use of the Goertzel filter in applications related to the quality of electric energy, allowing, with less investment in hardware, it is possible to design equipment capable of detecting and measuring imbalances in a more reliable way And generalist.

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Section: O Algoritmo De Goertzelunclassified

Análise Da Aplicabilidade Do Filtro Digital De Goertzel Na Medição De Desequilíbrios De Tensão

Lima

2017

HOLOS

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“…They also provide students with the necessary theoretical background on a wide range of real-time DSP applications [18], [19]. The organization and the time schedule of the lectures are presented in Fig.1.…”

Section: Laboratory Sessions In System Design With Dspsmentioning

confidence: 99%

“…The design process begins by understanding the basic principles of the DTMF encoder/decoder in the classroom using the appropriate textbooks [18], [19]. According to the demands of this laboratory session, the specifications of the DTMF encoder/decoder as they defined by the ITU (International Telecommunication Union) in [22] should be fulfilled.…”

Section: Design Implementation and Verification Of A Real-time Dmentioning

confidence: 99%

Online Laboratory Sessions in System Design with DSPs using the R-DSP Lab

Kalantzopoulos

Zigouris

2014

Int. J. Onl. Eng.

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Abstract-This paper presents the online conduction of the System Design with DSPs laboratory sessions through the R-DSP Lab (Remote Digital Signal Processor Laboratory). This interactive RL (Remote Laboratory) supports the verification of DSP applications which are written offline by the students in C and/or assembly programming language, through an internet accessible and user friendly control environment. The latest and most important feature of the R-DSP Lab which is also proposed in this paper, is the remote control of student's DSP applications through GUIs (Graphical User Interfaces) developed by them. In order to demonstrate the above feature, the implementation and verification processes of one laboratory session are presented. The assessment and evaluation results of both the System Design with DSPs laboratory sessions and the R-DSP Lab, are also discussed.

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“…In [19], the C6713 board, like a personal computer, needs to load software to establish its behavior and function. This software's can be designed in a variety of approaches.…”

Section: Dsp Software Implementationmentioning

confidence: 99%

DSP-based Synchronization Algorithm Implementation for OFDM

Abdulsattar¹,

Jebur²

2014

IJCA

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Synchronization has been one of the most important research topics in Orthogonal Frequency Division Multiplexing (OFDM) system because of its great sensitivity towards timing and frequency offset errors. This paper describes a real-time implementation of a timing and frequency synchronization for OFDM system using MATLAB software Simulink, DSP processor TMS320C6713 and Code Composer Studio (CCS). The hardware interface converts the baseband signal from the PC to the DSP Processor. Basic transmission and reception performances are evaluated in real time using Real Time data Transfer (RTDX). The practical results and performance evaluation of the synchronization algorithms in OFDM system is presented and discussed. The results are plotted for different offsets of CFO and STO with different values of signal to noise ratio. Also the bit error rate (BER) and the mean square error (MSE) of the system is analyzed.

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Digital Signal Processing and Applications with the TMS320C6713 and TMS320C6416 DSK

Cited by 50 publications

References 0 publications

Análise Da Aplicabilidade Do Filtro Digital De Goertzel Na Medição De Desequilíbrios De Tensão

Análise Da Aplicabilidade Do Filtro Digital De Goertzel Na Medição De Desequilíbrios De Tensão

Online Laboratory Sessions in System Design with DSPs using the R-DSP Lab

DSP-based Synchronization Algorithm Implementation for OFDM

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