System for determining the phase and magnitude of an incident signal relative to a cyclical reference signal
US6525522B1 · kind B1 · utility
8Cited by
7References
68Claims
0Family size
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Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Jun 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining the phase and magnitude of an incident signal relative to a cyclical reference signal, includes a sampler for sampling the incident signal. Autoranging circuitry is responsive to the reference signal and determines the frequency f of the reference signal and sets the sampling rate sr of the sampler. A processor, responsive to the sampler, computes a single point DFT v of the sampled incident signal responsive to the frequency of the reference signal and determines the phase &thgr; and magnitude |v| of the incident signal relative to the reference signal in response to the single point DFT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.