Apparatus and method for correlation operation

摘要

A data input means has a data storing unit, transfer control unit, and exclusive wiring. The data input means divides a plurality of data strings into a plurality of groups on a frequency axis. Each of the plurality of data strings includes frequency components which is Fourier-transformed. The data input means inputs the data strings to a correlation operation unit which is a computing element every divided groups which correspond with each other. The correlation operation unit performs the correlation operation every divided groups which correspond with each other in a plurality of data strings.