Enhanced digital communications receiver using channel impulse estimates
US5471501A · kind A · utility
138Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides for a receiver that employs integrated symbol timing adjustment and carrier tracking algorithms based on channel impulse response estimates. It uses variable coefficient least mean square tracking during estimation of the transmission channel's impulse response. Maximum likelihood sequence estimation equalization can also be integrated into the system using a non-real time operation that permits and exploits "time-reversed" equalization to significantly enhance bit-error rate performance and permits implementation of all the functions in a reasonably simple receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.