Apparatus and method for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer
US7061977B2 · kind B2 · utility
6Cited by
5References
11Claims
0Family size
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Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jun 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03687
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is disclosed for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer. An adaptive algorithm comprises a selected value of a prior and a selected value of a cost function. The present invention comprises algorithms adapted for calculating adaptive equalizer coefficients for sparse transmission channels. The present invention provides sparse algorithms in the form of a Sparse Least Mean Squares (LMS) algorithm and a Sparse Constant Modulus Algorithm (CMA) and a Sparse Decision Directed (DD) algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.