Hybrid adaptive sidelobe canceling system
US4313116A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1980 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Jan 30, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for adjusting the sidelobe response of a main antenna is disclosed. This iterative process results permits the sidelobe canceling in sequential step reduction in interference thereby greatly reducing the time required to respond to changes in the characteristics of the interference. The response of the phased array is adjusted by combining the composite signal from the main antenna with signals from auxiliary channels which have an adjustable phase and amplitude. The desired amplitude and phase of the auxiliary channels is determined using an iterative mathematical process which emphasizes the most recent data. Emphasizing the most recent data permits the system to be used in the scanning mode or to reduce interference from moving sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.