Digital channelizer having efficient architecture for discrete fourier transformation and operation thereof
US6351759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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 some 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.