Method for detecting navigation beacon signals using two...

Details Method for detecting navigation beacon signals using two... Method for detecting navigation beacon signals using two...

2008-04-04

2010-12-28

Phan, Dao L (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

C342S383000

Reexamination Certificate

active

07859461

ABSTRACT:
A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.

REFERENCES:
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patent: 4546355 (1985-10-01), Boles
patent: 4794395 (1988-12-01), Cindrich et al.
patent: 4978961 (1990-12-01), Williams et al.
patent: 7362268 (2008-04-01), Wengler et al.
patent: 7519395 (2009-04-01), Mesecher et al.
patent: 2005/0277442 (2005-12-01), Mesecher et al.

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