Method and device for estimating channel properties of a transmission channel
US7561639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Aug 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To estimate physical properties of a wired or wireless transmission channel it is proposed to sample a signal, received via the transmission channel, for example a system response of the corresponding transmission system, in order, on the basis of the sampled values thus obtained, to ascertain the moments of the order 0 . . . n of the received signal. Using these moments of the order 0 . . . n, n parameters of a transmission function of the transmission channel can be determined, wherein the parameters can be polynomial coefficients, zero points or coefficients of a residual notation of the transmission function. Using this transmission function the physical properties of the transmission channel, such as the attenuation and dispersion properties, can be determined exactly or at least approximately assessed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.