Sliced bandwidth distortion prediction
US6389068B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | May 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, and apparatus for performing the method, the method consists of the steps of: estimating a time when a dominant channel distortion occurs for each of a plurality of received test signals, wherein each of the plurality of received test signals occupies a different position in frequency in a communications medium having a given bandwidth; determining a differential group delay for the times estimated for each of the plurality of received test signals; and approximating a phase distortion of the communications medium as the differential group delay. In a variation, the method further consists of the steps of: estimating a power of each of the plurality of received test signals; determining an amplitude ripple by evaluating the power of each of the plurality of received test signals; and approximating an amplitude distortion of the communications medium as the amplitude ripple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.