Title :
Applications-specific microcoded architectures for efficient fixed-rate FFT
Author :
Catthoor, Francky ; Lanneer, D. ; De Man, H.
Author_Institution :
IMEC Lab., Leuven, Belgium
Abstract :
Many Fourier transform applications have to operate at fixed sample rates in the low to medium range, especially in signal processing systems. Hence, in order to arrive at efficient implementations, hardware sharing is required as in microcoded architectures. Very efficient application-specific realizations spanning a wide throughput range are proposed for FFT algorithms. Novel single-cycle address computations are presented to obtain these results. Tradeoffs between the architectural alternatives are provided. The designs have been used as test vehicles for the architectural strategy in an automated synthesis tool box geared toward digital signal processing applications
Keywords :
computer architecture; computerised signal processing; fast Fourier transforms; architectural strategy; automated synthesis tool box; digital signal processing; efficient fixed-rate FFT; fixed sample rates; hardware sharing; microcoded architectures; signal processing systems; single-cycle address computations; throughput range; Automatic testing; Computer architecture; Digital signal processing; Fourier transforms; Hardware; Signal design; Signal processing algorithms; Signal synthesis; Throughput; Vehicles;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100745