Adaptive steerable null antenna processor

Details Adaptive steerable null antenna processor Adaptive steerable null antenna processor

1980-03-24

1981-07-21

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343854, G01S 306

Patent

active

042801281

ABSTRACT:
An adaptive signal processing system for enhancing the signal-to-interfere characteristics on both receive and transmit using an in phase-quadrature correlator to control phase and amplitude adjust circuits located in the antenna signal paths. The amplitude adjustment provides amplitude balance control with variable delay lines between a quadrature hybrid and a sum-difference hybrid. The analog outputs of the correlator are digitized to control incrementally adjustable delay lines of the phase and amplitude circuits in binary steps.

REFERENCES:
patent: 4225870 (1980-09-01), Marner et al.

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