Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

Spectral Analysis of Multichannel DTMF Signal Detection Algorithm with the QFT

  • Kim, Duck-Gi (Dept . of Electronics Engineering, Semyung University) ;
  • Min, Seung-Gi (Dept . of Electronics Engineering, Semyung University) ;
  • Kim, Jeng-Sik (Dept . of Electronics Engineering, Semyung University) ;
  • Yoon, Dal-Hwan (Dept . of Electronics Engineering, Semyung University)
  • Published : 2000.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

The economical detection of dual-tone multifrequency(DTMF) signals is an important factor when developing cost-effective telecommunication equipment. Each channel has independently a DTMF receiver, and it informs the detected signal to processors. This paper analyze the power spectra and evaluate the performance of DTMF receiver by using the quick Fourier transform(QFT) algorithm. As experimental results, it show the improved performance to the DTMF receivers and reduce memory waste and process the real-time.

Keywords