Efficient Spectral Analysis of TDX-Families PCM Signal Acquisition System with the QFT(<Special Issue>Special Section on Papers Selected from ITC-CSCC 2002)

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概要

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• In order to establish rapid diagnosing in TDX signaling service, it, has developed a PCM signal acquisition (PCMA) system which can analyze status of signals sent from/received to a signaling equipment, providing the fully electronic switching system. The system has a function of acquirement PCM signal of the preferred channel from the subhighway (SHW), connecting a universal signal transceiver unit (USTU) and time switch unit (TSU). and then it classifies the type of signal such as R2MFC/DTMF/CCT/VOICE, and finally discriminates the digit. This paper analyze the signal status of the PCMA system using the quick Fourier transform (QFT) based the symmetric properties, and discusses the algorithm of signal analysis and discrimination. In the experimental results, it shows the improved performance to the PCMA and reduce memory waste and process the real-time.

• 社団法人電子情報通信学会の論文
• 2003-06-01

著者

• YOON Dal

  Department of Electronic Engineering, Semyung University

• Yoon Dal

  Department Of Electronics Engineering Semyung University

• Lin Chi

  Department Of Computer Science Semyung University

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• Efficient Spectral Analysis of TDX-Families PCM Signal Acquisition System with the QFT(Special Section on Papers Selected from ITC-CSCC 2002)

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