Estimation of impedances in a transmission medium
US9923600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jun 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to wireline communication systems, and in particular to aspects of a method and a line estimation device for estimating a characteristic impedance of a section of a transmission medium. The method comprises determining, by a test equipment having a test port with known impedance Zref, an S11 scattering parameter vector S11ref[f] of the transmission medium, indexed by frequency f. The method also comprises generating, based on Zref and S11ref[f], a model of reflection in the transmission medium corresponding to an observation of the transmission medium via a test port having a test impedance ZT, and also estimating the characteristic impedance of the section as a value of ZT which minimizes a difference between a reflection value of the model of reflection and a respective target reflection value of the section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.