Device for digital processing with frequency filtering and...

Details Device for digital processing with frequency filtering and... Device for digital processing with frequency filtering and...

2005-11-22

2005-11-22

Ngo, Chuong D (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S315000

Reexamination Certificate

active

06968352

ABSTRACT:
A device for processing digital data. A module (M2, M3) produces on a data vector of the frequency domain Z(k), wherein K varies from 0 to N−1, a convolution with a function U, convolution which corresponds to a cancellation in the time domain of the samples of the inverse transform of Z(k). The function U is in the form: U(k)=sin c(k−k0/2.e)−jπ(α(k−k0/2.P(k)), wherein K0is a constant integer and P(k) a weighting window symmetrical about k0.

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