Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Patent
1996-05-20
1998-10-27
Johnson, Stephen M.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
342192, G01S 1112
Patent
active
058283340
ABSTRACT:
This invention offers the capability to passively detect and classify missiles, aircraft, and units with gas turbine engines and rocket motors. It does so by measuring the electromagnetic radiation from ions in the exhaust gas. These emissions are low in frequency and propagate beyond the visual horizon with little attenuation other than through wavefront spreading in the earth-ionosphere waveguide. Acoustic and mechanical processes in combustion chambers and turbines modulate the ion signals in a deterministic manner that makes the engine type classifiable. The proposed passive detection and classification device can sense and identify aircraft, missiles, and potentially ground vehicles and gunfire. This capability will reduce vulnerability of forces to threats and reduce fratricide among friendly units.
REFERENCES:
patent: 4606067 (1986-08-01), Ernst
patent: 4876551 (1989-10-01), Climent et al.
patent: 4992797 (1991-02-01), Gjessing et al.
patent: 5012252 (1991-04-01), Faulkner
patent: 5124709 (1992-06-01), Baron et al.
patent: 5430448 (1995-07-01), Bushman
Klass; New Navy Radar Holds Promise of Long-Range Missile Detection; Aviation Week Aug. 17, 1959; p. 33; 342/460.
Doherty Robert J.
Johnson Stephen M.
LandOfFree
Passive aircraft and missile detection device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Passive aircraft and missile detection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive aircraft and missile detection device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1616912