FORMAS EFICIENTES DE REALIZAR UM SISTEMA MULTI-TAXA / EFFICIENT MULTI-RATE SYSTEM IMPLEMENTATION FORMS
AUTOR(ES)
ROGERIO GUEDES ALVES
DATA DE PUBLICAÇÃO
1993
RESUMO
Firstly, a multi-rate system structure is presented, a theorical review is made and its behavior is described. Afterwards, many forms of its implementation are presented: in time domain, mixed time domain and frequency domain; and in the frequency domain only. In those implementation some factors are taken into account, such as the use of the overlap-save and overlap- add techniques for the convolution, and the utilization of IIR or FIR structures as reconstruction filters. In the system implemented, the delay and complexity are analised, by the comparing to the theorical results. Some interesting results are show, such as the implementation of the frequency domain interpolation and the use of an inverse FFT dedicated to decimation and interpolation. Finally, pratical results of the implemented system are presented. These are evaluated, compared to the theorical ones and commented upon.
ASSUNTO(S)
estrutura domain frequency dominio da frequencia structure
ACESSO AO ARTIGO
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