Communications: directive radio wave systems and devices (e.g. – Presence detection only
Patent
1987-04-17
1989-06-06
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Presence detection only
367 93, 342 94, G01S 1304, G01S 1504
Patent
active
048375748
ABSTRACT:
The invention comprises a plurality of monostatic devices for radiating and receiving signals. The monostatic devices are disposed in a vertical spaced relationship such that signals from each device follow a direct path to an object to be detected and a reflected path to the object to be detected. The reflected path includes a path to a surface below the object and a path from the surface to the object. The signals are then reflected from the object and return through both the direct and reflected path. The monostatic devices may be radar antennas or acoustic transmitters.
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Barron Jr. Gilberto
Tarcza Thomas H.
The Boeing Company
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