Title :
A FPGA architecture for real-time processing of variable-length FFTS
Author :
Langemeyer, Stefan ; Pirsch, Peter ; Blume, Holger
Author_Institution :
Inst. of Microelectron. Syst., Leibniz Univ., Hannover, Germany
Abstract :
A new FFT architecture for real-time implementation of large FFTs is presented. The architecture supports both, high throughput and variable-length processing capabilities. The implementation is configurable at run-time, in order to compute power-of-two length ranging from 16 to 2n. It supports efficient integration of data scaling techniques. A radix-23 DIT FFT algorithm is derived, which minimizes the number of multipliers and supports simple reordering.
Keywords :
fast Fourier transforms; multiplying circuits; pipeline arithmetic; scaling circuits; FFT architecture; FPGA architecture; data scaling technique; high-throughput variable-length processing; multipliers; radix-23 DIT FFT algorithm; real-time processing; variable-length FFT; Clocks; Computer architecture; Field programmable gate arrays; Pipelines; Random access memory; Real time systems; Throughput; FFT; high-throughput; variable-length;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5946829
