Signal identification method
US7623790B2 · kind B2 · utility
2Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | May 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/0795
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A signal identification method for efficiently identifying Dense Wavelength Division Multiplexing (DWDM) channel modulation formats, signal powers, and center frequency detuning of signals that may be used in conjunction with telecom-grade monitoring equipment. The method utilizes least-square curve fitting estimates applied to a set of curves, each curve is characteristic of a modulation format and rate. For each least-square estimate an error value is calculated, and a curve fit with the least error is selected as the identified signal format for a signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.