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 language | English |
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Pages (from-to) | 95-99 |
Number of pages | 5 |
Journal | IEEE Transactions on Instrumentation and Measurement |
Volume | 47 |
Issue number | 1 |
DOIs | |
Publication status | Published - 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