Digital equalizing method and radio communication receiver implementing said method
US6850562B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1999 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Sep 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03203
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For processing samples of a signal received via a channel represented by an impulse response of W−1 coefficients, the method comprises: determining the W roots of the Z-transform of the channel impulse response; producing an intermediate signal by equalizing the received signal by a zero-forcing method or the like based on an impulse response whose Z-transform is a Z−1 polynomial of degree W-p having as roots those of the W roots which are furthest from the unit circle of the complex plane; and then obtaining estimations of the transmitted signal symbols by applying a Viterbi-type equalization method or the like based on an impulse response whose Z-transform is a Z−1 polynomial of degree p having as roots those of the W roots which are nearest to the unit circle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.