An extensible complex fast fourier transform processor chip for real-time spectrum analysis and measurement

Ediz Çetin*, Richard C S Morling, Izzet Kale

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper describes in detail the design of a CMOS custom fast Fourier transform (FFT) processor for computing a 256-point complex FFT. The FFT is well-suited for realtime spectrum analysis in instrumentation and measurement applications. The FFT butterfly processor reported here consists of one parallel-parallel multiplier and two adders. It is capable of computing one butterfly computation every 100 ns thus it can compute a 256-point complex FFT in 102.4 μs excluding data input and output processes.

Original languageEnglish
Pages (from-to)95-99
Number of pages5
JournalIEEE Transactions on Instrumentation and Measurement
Volume47
Issue number1
DOIs
Publication statusPublished - 1998

Keywords

  • Digital signal processors
  • Discrete fourier transform (DFT)
  • Fast fourier transform (FFT)
  • FFT butterfly
  • Integrated circuit
  • Silicon implementation
  • Spectrum analysis
  • Very large scale integration

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