A Low-Cost, Low-Complexity, and Memory-Free Architecture of Novel Recursive DFT and IDFT Algorithms for DTMF Application

A low-computational complexity and low-cost recursive discrete Fourier transform (RDFT) design using the Chinese remainder theorem is proposed in this brief. The proposed algorithm reduces multiplications by 74% and additions by 73% compared to the latest RDFT algorithms. For computing the 212- and...

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Veröffentlicht in:	IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2010-09, Vol.57 (9), p.711-715
Hauptverfasser:	Lai, Shin-Chi, Lei, Sheau-Fang, Juang, Wen-Ho, Luo, Ching-Hsing
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithm design and analysis Algorithms Architecture Circuits Computation Computer architecture Design engineering Discrete cosine transforms Discrete Fourier transform (DFT) Discrete Fourier transforms dual-tone multifrequency (DTMF) Fourier transforms Hardware Multiplication Recursive recursive filters Signal processing algorithms Signal to noise ratio
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