Title :
A framework for quality versus efficiency tradeoffs in STFT analysis
Author :
Nawab, Hamid ; Dorken, Erkan
Author_Institution :
Dept. of Electr. Comput. & Syst. Eng., Boston Univ., MA, USA
fDate :
4/1/1995 12:00:00 AM
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
Keywords :
adaptive signal processing; discrete Fourier transforms; sequences; DFT; SNR; STFT analysis; additions; computational efficiency; frame-adaptive vector summation; frequency coverage; frequency resolution; signal frame quality; Algorithm design and analysis; Arithmetic; Computational efficiency; Discrete Fourier transforms; Embedded computing; Frequency; Process design; Quantization; Signal analysis; Signal resolution;
Journal_Title :
Signal Processing, IEEE Transactions on
