Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Patent
1959-11-03
1988-01-26
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
342459, 342453, 342 22, G01S 302
Patent
active
047219610
ABSTRACT:
This invention relates to a system for detecting submerged objects by receiving an incident indication of electromagnetic energy and also the reflection of said energy caused by the presence of a submerged object and to comapre the field strength of the incident radiation with the field strength of the reflected radiation to determine the relation therebetween, the relation being a measure of the object location.
REFERENCES:
patent: 1828531 (1931-10-01), Gage
patent: 2422107 (1947-06-01), Luck
Busignies Henri G.
deRosa Louis A.
Blum Theodore M.
ITT Avionics
Twomey Thomas N.
Walsh Robert A.
Werner Mary C.
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