Phase stabilization in adaptive arrays
US6366239B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2611
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase-stabilized adaptive array system with a moving antenna array and a plurality of signal channels coupled to the antenna array, each for producing a channel signal. Each channel has adaptive signal weighting apparatus for weighting the channel signal by a channel weight. The system includes combining apparatus for combining the weighted channel signals to form a beam signal, and phase compensation apparatus for applying phase compensation weights to the array signals or the beam signal which vary in dependence on the array position such that the response to a signal at a known direction is held substantially constant while the antenna is moved, or as the weights are updated. A method for operating an adaptive array includes rotating the antenna array with respect to a target, providing a plurality of signal channels coupled to the antenna array, each for producing a channel signal, adaptively weighting each channel signal by a channel weight, and combining the weighted channel signals to form a beam signal. The method further includes, for phase stabilizing the response to a target at a given angular position, applying phase compensation weights to the array signals or the be…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.