RF imaging of low observable coatings using a wire-over-ground-p

Details RF imaging of low observable coatings using a wire-over-ground-p RF imaging of low observable coatings using a wire-over-ground-p

1994-07-30

1996-01-09

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324533, 324642, G01R 3111

Patent

active

054831695

ABSTRACT:
A non-destructive test system that displays time domain amplitude returns from multi-frequency, multi-phase, constant magnitude RF signals, that are reflected by differences in characteristic impedance of a wire over ground plane transmission line. The reflections are used to detect RF discontinuities or faults in conductive areas that form the ground plane which preferably are resolved using a generalized pencil-of-points algorithm. The nondestructive testing system so constructed is especially useful in testing field repairs of radar absorbing material (RAM) and other features of a conductive object or vehicle whose radar return is to be minimized.

REFERENCES:
patent: 3970927 (1976-07-01), Ladbrook et al.
patent: 4471294 (1984-09-01), Nielsen
patent: 4634963 (1987-01-01), Lunden
patent: 4970467 (1990-11-01), Burnett
patent: 5185579 (1993-02-01), Mertens et al.

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