Title :
An integrated 256-point complex FFT processor for real-time spectrum analysis and measurement
Author :
Çetin, Ediz ; Morling, Richard C S ; Kale, Lzzet
Author_Institution :
Div. of Electron. Syst., Westminster Univ., London, UK
Abstract :
This paper describes in detail the design of a custom CMOS Fast Fourier Transform (FFT) processor for computing 256-point complex FFT. The FFT is well suited for real-time spectrum analysis in instrumentation and measurement applications. The FFT butterfly processor consists of one parallel-parallel multiplier and two adders. It is capable of computing one butterfly computation every 100 ns thus it can compute 256-complex point FFT in 25.6 μs excluding data input and output processes
Keywords :
CMOS digital integrated circuits; application specific integrated circuits; computational complexity; digital signal processing chips; fast Fourier transforms; hypercube networks; parallel architectures; pipeline processing; real-time systems; 100 ns; 25.6 mus; 256-point complex FFT; FFT butterfly processor; Fast Fourier Transform processor; butterfly computation; custom CMOS processor; instrumentation; integrated 256-point complex FFT processor; measurement applications; parallel-parallel multiplier; real-time spectrum analysis; Application software; Circuit noise; Design optimization; Digital signal processing; Discrete Fourier transforms; Field programmable gate arrays; Instruments; Real time systems; Signal processing algorithms; Velocity measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.603923
