Fast Fourier Transform (FFT) inter frequency loss mitigation and Global Positioning System (GPS) receiver including it
US7643542B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Aug 12, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/29
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Acquisition method for a localization receiver, in particular for a Global Positioning System (GPS) receiver. It involves the calculation of an interpolated Fast Fourier Transform (FFT) spectrum (S′) of correlated signals in which the frequency lines corresponding to half-integer values of the frequency resolution defined by the FFT are obtained by a combination of both amplitude and phase values of the FFT spectrum (S).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.