Iterative equalization with non-linear soft interference cancellation in non-linear satellite channels
US8804807B2 · kind B2 · utility
4Cited by
10References
20Claims
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Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Feb 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0328
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for removing distortions in a transmitted signal transmitted by a high power amplifier in a satellite communications system. The method characterizes the high power amplifier to define a series of Volterra coefficients and uses those coefficients in an equalizer in a receiver in the communications system to remove the distortions. The equalizer is a non-linear soft interference cancellation and minimum mean square error equalizer that employs three processing operations including parallel soft interference cancellation, minimum mean square error filtering and a priori log-likelihood ratio calculations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.