Array transducer angular tracking system

Details Array transducer angular tracking system Array transducer angular tracking system

1972-01-12

1976-01-06

Farley, Richard A.

Communications: electrical

Selective

Having indication or alarm

G01S 380

Patent

active

039316076

ABSTRACT:
A system for measuring the angular displacement of a signal source relative o the center line of an array type transducer. The sum and difference signals of the array are applied to the system which phase shifts the incoming signals, provides a summation of selected phase shifted signals and applies the summed signals to a phase detector. A normalized signal is derived that is an amplitude measurement indicative of the angle between the signal source, and a line incident normal to the array, wherein the sum is a maximum and the difference is zero.

REFERENCES:
patent: 3064253 (1962-11-01), Kirkpatrick
patent: 3286224 (1966-11-01), Zefting

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