Apparatus for the generation of a two-dimensional

专利名称：Apparatus for the generation of a two-dimensional discrete fourier transform

发明人：Jeffrey M. Speiser,Harper John Whitehouse申请号：US05/548300申请日：19750210公开号：US03952186A公开日：19760420

摘要：An apparatus for the generation of a two-dimensional discrete Fouriertransform of an input signal developed from data within a data block, or field, having asize of N.sub.1 by N.sub.2 data points, N.sub.1 and N.sub. 2 being relatively prime withrespect to each other, the transforms being in a form suitable for subsequent electronicprocessing. The apparatus comprises an input scan apparatus connectable to the N.sub. 1by N.sub.2 two-dimensional data field comprising the input signal, such as a televisionviewing field. The apparatus receives and scans in proper order, or sequence, the N.sub.1by N.sub.2 input data so that the subsequently generated one-dimensional Fouriertransform of the length N. sub.1 N.sub.2 serial data string is identical to an N.sub.1 byN.sub.2 two-dimensional discrete Fourier transform of the N.sub.1 by N.sub.2 input datasamples. A serial-access one-dimensional discrete Fourier transform (DFT) device,connected to the input scan generator, generates a one-dimensional discrete Fouriertransform of the length N.sub.1 N.sub. 2 serial data string.

申请人：THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OFTHE NAVY

代理人：Richard S. Sciascia,Ervin F. Johnston,John Stan

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