An accurate Dual Tone Multiple Frequency Detector Based on the Low-Complexity Goertzel Algorithm.

Authors

  • Fotis E. Andritsopoulos
  • Newton Bomeisel Cardoso
  • Gregory Doumenis
  • Yannis M. Mitsos
  • Lambros E. Sarakis

Keywords:

TMF, detector, Goertzel, processamentos de sínais.

Abstract

This article presents a low complexity dual tone multiple frequency (DTMF) signal detectort hat meets they ternation a Telecommunication Union (ITU) Q.24 DTMF standard while implemented on a general purpose Digital Signal Processor(DSP). The proposed DTMF detectoris based on the Goertzel algorithms and is well suited for a multichannel implementation. Our solution offers increased accuracy and noise margins, while preserving the inherited advantages of the Goertzel algorithm (less memory requirements and computational complexity).

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How to Cite

Andritsopoulos, F. E., Cardoso, N. B., Doumenis, G., Mitsos, Y. M., & Sarakis, L. E. (2009). An accurate Dual Tone Multiple Frequency Detector Based on the Low-Complexity Goertzel Algorithm. Revista Tecnologia, 23(1). Retrieved from https://ojs.unifor.br/tec/article/view/184

Issue

Vol. 23 No. 1 (2002)

Section

Artigos

License

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