Group delay estimate system using least square fit to phase response ramp
US5399976A · kind A · utility
14Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Feb 5, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Feb 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The phase response of a network is measured at uniform frequency intervals. A linear regression analysis is performed on samples of the phase response measured at frequencies within an aperture centered on a group delay frequency to obtain an estimate of the group delay of the network at that frequency. The process is repeated for a sequence of group delay frequencies to determine a trace of the group delay of the network across a range of frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.