Fractional fourier transform convolver arrangement
US7543009B2 · kind B2 · utility
2Cited by
4References
22Claims
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Key dates
| Filing date | Dec 24, 2003 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Mar 24, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2628
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An M-point Fractional Fourier is described using several 2M-points traditional Fourier transforms. The signal path is fed through a series of blocks including a first multiplier, a zero pad, an FFT, a second multiplier, an IFFT, a first half element, and a third multiplier. The first and third multipliers have as their other inputs a value exp(−jΠn2α) for n=0:M−1, derived from the clock offset signal represented by α.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.