Jitter-corrected spectrum analyzer
US6651016B1 · kind B1 · utility
3Cited by
5References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Apr 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/167
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analog signal is digitized by an analog-to-digital (A/D) converter clocked by a periodically jittery clock signal. Elements of the digital data sequence (vector) output of the A/D converter are sorted into a set of smaller vectors according to clock signal jitter phase and each of the smaller vectors is then separately subjected to Fourier transform and time shift functions. The resulting vectors are then processed to produce an output vector representing the frequency spectrum of the analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.