Title :
A new algorithm for DTMF detection
Author :
Shen, Li-Te ; Hwang, Shaw-Hwa
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei
Abstract :
In this paper, a new algorithm is proposed for the DTMF detection. The modified DFT algorithm is employed to detect the band-pass DTMF signal. The computation requirement is very low than the well-known Goertzel algorithm. Moreover, the detection-criterion and correction-rate is still same as DFT and Goertzel algorithm. Experimental results confirm the good performance of this new algorithm.
Keywords :
discrete Fourier transforms; signal detection; DFT; DTMF detection; Goertzel algorithm; band-pass signal detection; discrete Fourier transform; Band pass filters; Bandwidth; Digital filters; Discrete Fourier transforms; Equations; Frequency conversion; Frequency estimation; Matched filters; Signal detection; Switches; DFT; DTMF; Goertzel;
Conference_Titel :
Wireless and Optical Communications Networks, 2009. WOCN '09. IFIP International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-4704-6
Electronic_ISBN :
978-1-4244-3474-9
DOI :
10.1109/WOCN.2009.5010521
