Communications: directive radio wave systems and devices (e.g. – Radar ew
Patent
1983-09-26
1987-03-17
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
342 27, G01S 1366
Patent
active
046511520
ABSTRACT:
A method of detecting an object that may be coated with material for preventing or attenuating reflections of incident electromagnetic waves is disclosed in which pulses of electromagnetic wave energy are generated with a large relative bandwidth in the band from about 0.1 GHz to about 12.0 GHz. Preferably, the generated pulses have a pulse duration in the range from 0.1 nanosecond to 1 nanosecond. Those pulses of electromagnetic wave energy are directed toward the object and reflections of those pulses of electromagnetic wave energy which are incident on the object are detected by receiving apparatus. The method enables coated objects to be differentiated from uncoated objects.
REFERENCES:
patent: 3311914 (1967-05-01), Barringer
patent: 3500395 (1970-03-01), Foster et al.
patent: 4415898 (1983-11-01), Gaunaurd et al.
Barron Jr. Gilberto
Geophysical Survey Systems, Inc.
Orenbuch Louis
Tubbesing T. H.
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