Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1994-07-08
1997-04-29
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
342194, 342442, 342419, G01S 504, G01S 1300
Patent
active
056253648
ABSTRACT:
An apparatus and method are described for direction finding the source of emf emissions including a monotone signal by detecting the phase changes of the monotone signal during movement relative to the source. A software embodiment measures the amount of phase change.
REFERENCES:
patent: 3845487 (1974-10-01), Lammers
patent: 4106023 (1978-08-01), Baghdady
patent: 5099248 (1992-03-01), Brommer
Herrick David L.
Matthews, III William F.
Gomes David W.
Issing Gregory C.
Lockheed Sanders, Inc.
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