A framework for quality versus efficiency tradeoffs in STFTanalysis

  • Authors:

  • S.H. Nawab;E. Dorken

  • Affiliations:

  • Dept. of Electr. Comput. & Syst. Eng., Boston Univ., MA;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 1995

  • Approximate Signal Processing

    Journal of VLSI Signal Processing Systems - Special issue on the rapid prototyping of application specific signal processors (RASSP) program

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Abstract

A framework is presented for increasing the computational efficiency of STFT analysis by sacrificing the quality of each signal frame's DFT in terms of SNR, frequency resolution, and frequency coverage. The resulting algorithms are dominated by a frame-adaptive vector summation process designed to ensure that the number of additions per frame does not exceed any desired limit