Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of the errors caused by the finite-bit real-time implementation of DFT

실시간 응용을 위한 DFT구현시 계수 근사에 기인한 오차 해석에 관한 연구

  • Kim, Jae-Hwa (Chung-Ang University, Control & Instrumentation Engineering Department) ;
  • Kim, Byung-Ki (Chung-Ang University, Control & Instrumentation Engineering Department) ;
  • Chang, Tae-Gyu (Chung-Ang University, Control & Instrumentation Engineering Department)
  • 김재화 (중앙대학교 제어계측공학과) ;
  • 김병기 (중앙대학교 제어계측공학과) ;
  • 장태규 (중앙대학교 제어계측공학과)
  • Published : 1996.07.22
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Abstract

This paper proposes a real-time OFT implementation technique which is based on the finite-bit approximation of the DFT coefficients. The effect of the approximation is analytically investigated and its result is obtained in the form of an equation of noise to signal ratio. The analysis result is confirmed by comparing it with those of the computer simulation and the actual experiment for human sleep EEG data.

Keywords