Bootstrapping cross-polarization canceler with a noise-blanking limiter
US4637067A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Jun 27, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a bootstrapping cross-polarization canceler which includes a noise-blanking limiter in the path before a correlation detector, and a processor which uses the output from the correlation detector to provide cross-polarization cancellation continuously or just during an outage condition where orthogonally received signals from a communication path include error rates which exceed a predetermined threshold. Alternatively, the processor can use the output of a pseudo error detection, which detects the error rate of the orthogonally received signals, when the error rates in the received signals are below the predetermined threshold in order to achieve convergence and cross-polarization cancellation in the canceler during a non-outage period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.