Receiver having a modulation amplifier for enhancing reception of a desired signal in the presence of interference
US4710723A · kind A · utility
10Cited by
5References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Apr 4, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D1/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To enhance the detection of a desired signal in the presence of interference, the degree of modulation of a received input signal is amplified. In the preferred embodiments, this is accomplished by amplifying the degree of amplitude modulation. This works especially well in situations where constant or substantially constant envelope jamming is employed. However, the arrangement is also effective in some cases where the jamming signal has a rapidly fluctuating envelope. The success of the technique in cases of rapidly fluctuating envelopes depends upon the probability distribution of the envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.