Issue No.11 - November (1970 vol.19)
H.L. Groginsky , IEEE
This paper describes a novel structure for a hardwired fast Fourier transform (FFT) signal processor that promises to permit digital spectrum analysis to achieve throughput rates consistent with extremely wide-band radars. The technique is based on the use of serial storage for data and intermediate results and multiple arithmetic units each of which carries out a sparse Fourier transform. Details of the system are described for data sample sizes that are binary multiples, but the technique is applicable to any composite number.
Cascade Fourier transform, digital signal processor, Doppler radar, fast Fourier transform, radar-sonar signal processor, radix-two fast Fourier transform, real-time signal processor.
H.L. Groginsky, G.A. Works, "A Pipeline Fast Fourier Transform", IEEE Transactions on Computers, vol.19, no. 11, pp. 1015-1019, November 1970, doi:10.1109/T-C.1970.222826