Null steering device

Details Null steering device Null steering device

1977-06-17

1993-10-12

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Receiver circuitry

367121, 114 201, H04B 106, F42B 1900

Patent

active

052532216

ABSTRACT:
A device for steering a null in a sonar beam pattern resolves first and snd beam signals into four quadrature components. These components are multiplied in multiplying digital to analog converters by binary number factors, derived in accordance with the desired null angle, to provide analog signals that are combined in a summing amplifier to provide analog output corresponding to acoustic energy received by a beam having a null at the desired angle.

REFERENCES:
patent: 2464258 (1949-03-01), Prichard
patent: 2524180 (1950-10-01), Schuck
patent: 2666192 (1954-01-01), Hunt et al.
patent: 4017867 (1977-04-01), Claus
patent: 4025894 (1977-05-01), Ziese

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