Beam pattern equalization method for an adaptive array
US5274844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | May 11, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2605
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method is offered of automatically beamforming a radio frequency transmitter having an array antenna. The beamformed signal is transmitted for the benefit of a target communication unit based upon characteristics of a received signal. The method includes the steps of determining a transmit equalizer transfer function and receive equalizer transfer function for each array element of the antenna array based, at least in part, upon application of common input signals and comparison of outputs. The method further includes adaptively filtering a received signal, from a communication unit based, at least in part, upon the determined receive equalizer weights, to provide a receive beamform array. A beamformed signal may then be transmitted to the communication unit based upon the transmit equalizer weights and receive beamform array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.