A 2D-FFT algorithm on mesh connected multiprocessor systems

  • Kunieda, Hiroaki (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology) ;
  • Itoh, Kazuhito (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)
  • 발행 : 1987.10.01

초록

A direct computation algorithm of two dimensional fast Fourier transform (2D-FFT) is considered here for implementation in mesh connected multiprocessor array of both a 2D-toroidal and a rectangular type. Results are derived for a hardware algorithm including data allocation and interprocessor communications. A performance comparison is carried out between the proposed direct 2D-FFT computation and the conventional one to show that a new algorithm gives higher speedup under a reasonable assumption on the speeds of operations.

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