대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

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

Signal Analysis and Performance Evaluation of the PCMA System based on the QFT

  • Kim, Jeng-Sik (Dept. of Electronics Engineering, SeMyung University) ;
  • Min, Seung-Gi (Dept. of Electronics Engineering, SeMyung University) ;
  • Jang, Jun-Hwan (Dept. of Electronics Engineering, SeMyung University) ;
  • Jeng, Hae-Young (Dept. of Electronics Engineering, SeMyung University) ;
  • Yoon, Dal-Hwan (Dept. of Electronics Engineering, SeMyung University)
  • 발행 : 2000.07.01
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초록

The system has a function of acquirement PCM signal of the preferred channel from the subhighway (SHW), connecting a universal signal transceiver unit and time switch unit, and then it classifies the type of signal such as R2MFC/ DTMF/ CCT/ VOICE, and finally discriminates the digit. This paper describes the spectral analysis of the PCM acquisition system usng the quick Fourier transform(QFT), and discusses the algorithm of signal analysis and discrimination.

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