Beamforming/null-steering adaptive array

Details Beamforming/null-steering adaptive array Beamforming/null-steering adaptive array

1987-02-20

1988-09-13

Blum, Theodore M.

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

Directive

Utilizing correlation techniques

342378, G01S 342

Patent

active

047712899

ABSTRACT:
A beamforming adaptive control loop is simultaneously employed in combination with a null-steering adaptive control loop to enhance the signal/interference ratio resulting in an increase in the messasge quality. The loops may employ temporal processing in which case on-epoch sample/hold filters and off-epoch sample/hold filters form separate loops which enhance the desired signal and cancel the undesired signal, respectively. The correlated output from the beamforming loop is added to the correlated output of the null-steering loop and mixed with the incoming signal.

REFERENCES:
patent: 3763490 (1973-10-01), Hadley et al.
patent: 4017867 (1977-04-01), Claus
patent: 4156877 (1979-05-01), Piesinger
patent: 4173759 (1979-11-01), Bakhru
patent: 4217586 (1980-08-01), McGuffin
patent: 4357610 (1982-11-01), Kingston et al.
patent: 4528674 (1985-07-01), Sweeney et al.

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