Title :
An extensible complex fast Fourier transform processor chip for real-time spectrum analysis and measurement
Author :
Çetin, Ediz ; Morling, Richard C S ; Kale, Izzet
Author_Institution :
Dept. of Electron. Syst., Westminster Univ., London, UK
fDate :
2/1/1998 12:00:00 AM
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 real-time 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
Keywords :
CMOS digital integrated circuits; adders; application specific integrated circuits; digital signal processing chips; discrete Fourier transforms; hypercube networks; multiplying circuits; pipeline processing; spectral analysis; very high speed integrated circuits; 102.4 mus; CMOS custom FFT processor; DSP; FIFO RAM; VLSI; adders; address generation unit; butterfly processor; complex FFT processor chip; discrete Fourier transform; parallel-parallel multiplier; pipelined processor; radix-2 butterfly; real-time spectrum analysis; Adders; CMOS process; Digital signal processors; Discrete Fourier transforms; Fast Fourier transforms; Filtering; Instrumentation and measurement; Instruments; Semiconductor device measurement; Silicon;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
