H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 1/08 (2006.01) G06F 17/14 (2006.01) H04J 1/05 (2006.01)
Patent
CA 2299021
The invention is an apparatus and process for performing a discrete Fourier transform and a digital channelizer which divides an input bandwidth into at least same of N channels. An apparatus for performing a discrete Fourier transform in accordance with the invention includes at least one discrete Fourier transform computation stage (304, 305', 402, 410, 412, 414, 419), the at least one discrete Fourier transform computation stage having N inputs representing preselected frequency bands with each input containing an input signal containing real data and P actual outputs each containing an output signal, P being less than N, at least one of the P actual output signals containing a conjugate of one of the N input frequency bands; and a processing device (602, 702), coupled to at least one P actual output containing a signal which is a conjugate, which processes the conjugate as representative of one of the N input frequency bands.
Caso Gregory S.
Moretti Vincent C.
Gowling Lafleur Henderson Llp
Northrop Grumman Corporation
Trw Inc.
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