System and method of estimating phase noise based on measurement of phase jitter at multiple sampling frequencies
US7292947B1 · kind B1 · utility
14Cited by
2References
50Claims
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Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Jun 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/31709
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method of estimating random and periodic phase noise components based on measurement of phase jitter in a given signal uses a difference filter to attenuate low frequency random noise components and a process of obtaining timing measurements at a plurality of sampling frequencies in order to de-alias identified noise spurs. Such technology is especially well-suited for devices capable of undersampling a jitter signal, such as continuous time interval analyzers (CTIAs).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.