Narrowband interference suppression system
US4613978A · kind A · utility
30Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Jun 14, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Strong narrowband signals interfering with the reception of a desired broadband signal in systems such as spread spectrum systems are continuously suppressed by converting the received signal to a frequency-domain representation thereof wherein strong narrowband interference components appear as strong impulse components. These impulsive components are blanked or clipped at a level that is a function of the average magnitude of the input signal. Resulting suppressed frequency-domain signals are reconverted to time-domain signals that are then available for further processing by conventional broadband signal receivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.