Adaptive direction of arrival antennae system

Details Adaptive direction of arrival antennae system Adaptive direction of arrival antennae system

1976-04-08

1977-11-08

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343100SA, 343117A, G01S 348, H01Q 326

Patent

active

040578038

ABSTRACT:
A system for adaptively determining the direction of arrival (DOA) of a larly polarized RF signal. Three antennae are positioned at fixed distances from one another in a right triangle configuration to receive the RF signal. The antennae are alternatingly switched into two orthogonally aligned pairs and each pair exhibits an antenna pattern null which is adaptively steered toward the RF signal by a computer program operatively connected to a variable phase shifter which selectively alters the phase of the received signal. An algorithm within the program calculates the direction of arrival of the signal relative to a selected one of the antenna pair axes.

REFERENCES:
patent: 2996712 (1961-08-01), Richman
patent: 3005200 (1961-10-01), O'Meara
patent: 3510871 (1970-05-01), Watanabe et al.
patent: 3964065 (1976-06-01), Roberts et al.

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