A continuous-flow, Variable-Length FFT SDF architecture

@article{Polychronakis2010ACV,
  title={A continuous-flow, Variable-Length FFT SDF architecture},
  author={Nikolaos Polychronakis and Dionysios I. Reisis and Emmanouil Tsilis},
  journal={2010 17th IEEE International Conference on Electronics, Circuits and Systems},
  year={2010},
  pages={730-733}
}
This paper presents a FFT architecture, which processes FFT frames of various size in a continuous-flow fashion. The organization is based on the Single-path Delay Feedback (SDF) scheme and it computes mixed radix FFT algorithms with radixes 2, 22, 23 and 24. The proposed SDF is able to execute FFT of size varying from 128 to 2048 in continuous-flow by exploiting the memory of each stage for efficiently storing the elements of any FFT frame-size. The design handles FFT size variation without… CONTINUE READING

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