High speed fourier transform engine

Details High speed fourier transform engine High speed fourier transform engine

1991-05-28

1993-01-12

Mai, Tan V.

Boots, shoes, and leggings

G06F 15332

Patent

active

051795299

ABSTRACT:
Fast fourier transforms are performed in digital signal processing using number theoretic transforms. Incoming pulse descriptor words are mapped into a matrix. The first convolution does forward and inverse number transforms on the rows. The second convolution does forward and inverse number transforms on the columns.

REFERENCES:
patent: 4048485 (1977-09-01), Nussbaumer
patent: 4062060 (1977-12-01), Nussbaumer
patent: 4063082 (1977-12-01), Nussbaumer
patent: 4788654 (1988-11-01), Duhamel et al.
Nussbaumer, "Discrete Transforms Filter", IBM Tech. Discl. Bull., vol. 18, No. 12, May 1976, pp. 4048-4053.
Nussbaumer, "Digital Filtering by Complex Polynomial Transforms", IBM Tech. Discl. Bull., vol. 20, No. 9, Feb. 1978, pp. 3521-3522.

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