Efficient dual-tone multifrequency detection using the nonuniform discrete fourier transform

IEEE Signal Processing Letters

Volumn 5, Issue 7, 1998, Pages 160-163

  Felder, Matthew D ^a,b   Mason, James C ^a,c   Evans, Brian L ^a  

^a The University of Texas at Austin   (United States)

^b MOTOROLA INC   (United States)

^c Wireless Subscriber Division   (United States)

Author keywords

Modified Goertzel algorithm; Multichannel DTMF detection; Sliding window; Spectral estimation; Touchtone dialing

Indexed keywords

ALGORITHMS; COMMUNICATION CHANNELS (INFORMATION THEORY); DIGITAL SIGNAL PROCESSING; FOURIER TRANSFORMS; SIGNAL FILTERING AND PREDICTION; SPECTRUM ANALYSIS; TELEPHONE SYSTEMS; TIME DIVISION MULTIPLEXING;

DISCRETE FOURIER TRANSFORM (DFT); DUAL TONE MULTIFREQUENCY (DTMF) SIGNALS; MODIFIED GOERTZEL ALGORITHM;

SIGNAL DETECTION;

EID: 0032123075     PISSN: 10709908     EISSN: None     Source Type: Journal    
DOI: 10.1109/97.700916     Document Type: Article

References (8)

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