Communications: directive radio wave systems and devices (e.g. – Return signal controls external device
Patent
1992-05-27
1993-04-27
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
102427, G01S 1300
Patent
active
052066533
ABSTRACT:
A sensor arrangement for the activation or starting of an active body, especially for a land mine which is deployed against ground and airborne targets. The arrangement includes a waking sensor which is responsive to the approach of a target, and incorporating circuit arrangements for the environmentally-adaptive setting of sensor-evaluating circuits in order to release the operating mechanism employed for combatting the target. Provided is at least one antenna for the radiating of a nondirectional electromagnetic ground or direct wave (which hugs the terrain), and possibly also for the receipt of reflections from the surroundings after the deployment of the active body, as well as after activation by the waking sensor, also for determining the relative movement of a target which has penetrated into the previously encompassed surroundings, due to the reflections thereon.
REFERENCES:
patent: 3509791 (1970-05-01), Pechamat et al.
patent: 3924233 (1975-12-01), Nastronero et al.
patent: 4196433 (1980-04-01), Brown
patent: 4712479 (1987-12-01), Babel
patent: 4761652 (1988-08-01), Pirolli et al.
Diehl GmbH & Co.
Hellner Mark
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