Beamforming/null-steering adaptive array

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

1982-05-28

1987-03-17

Blum, Theodore M.

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

Directive

Utilizing correlation techniques

375102, 455306, H04B 1500

Patent

active

046511555

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 message quality. The loops employ spectral processing in which case bandpass filters and notch filters form separate loops which enhance the desired signals and cancel the undesired signals, 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: 4032922 (1977-06-01), Provencher
patent: 4079381 (1978-03-01), Piesinger
patent: 4225870 (1980-09-01), Marner et al.

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