Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Statutory Invention Registration
2005-10-14
2008-10-07
Pihulic, Dan (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
C342S442000, C342S444000
Statutory Invention Registration
active
H0002224
ABSTRACT:
A method to passively locate an emitter using two aircraft to form a large baseline interferometer. The basic two element (two aircraft or helicopters) large baseline interferometer includes self-calibration and allows for various configurations for geo-location of ground-based emitters. The two aircraft large baseline interferometer can measure phase difference of arrival (PDOA) to very precisely locate the emitter in angle. Moving emitters can also be located and tracked using the method of the invention with greater accuracy than can be achieved from a single platform.
REFERENCES:
patent: 5914687 (1999-06-01), Rose
patent: 5999129 (1999-12-01), Rose
patent: 6255992 (2001-07-01), Madden
patent: 6407703 (2002-06-01), Minter et al.
patent: 6577272 (2003-06-01), Madden
AFMCLO/JAZ
Pihulic Dan
The United States of America as represented by the Secretary of
Tollefson Gina S.
LandOfFree
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