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Title: New passive helicopter detector

Abstract

Sandia has developed a new helicopter detector. The device relies on the correlation between the acoustic wave from the helicopter and the resulting coupled seismic wave. A significant feature of this approach is that the detector is completely passive; there is no radio frequency radiation. Intended for deployment as a perimeter sensor around a site, the unit offers a low nuisance/false alarm rate and a high probability of detection for a wide range of helicopters. Reliable detection occurs when the target is at high altitude and also very near the earth's surface. Detection ranges start at one kilometer for the small, four-place, civilian helicopter and approach five kilometers for heavier, military types. The system has two parts: a transducer package containing a microphone and a geophone and a digital processor. Development is underway for a model which will be AC powered and well suited to permanent facilities. A prototype unit using a lightweight, battery powered processor is being constructed for rapid-deployment applications. 6 figs.

Authors:
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
5458419
Report Number(s):
SAND-85-1670C; CONF-850765-9
ON: DE85015160
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 26. annual meeting of the Institute of Nuclear Materials Management, Albuquerque, NM, USA, 21 Jul 1985
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; HELICOPTERS; DETECTION; NUCLEAR FACILITIES; INTRUSION DETECTION SYSTEMS; CORRELATIONS; NUCLEAR MATERIALS MANAGEMENT; PHYSICAL PROTECTION; SEISMIC WAVES; SOUND WAVES; AIRCRAFT; ALARM SYSTEMS; MANAGEMENT; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects

Citation Formats

Elliott, G R. New passive helicopter detector. United States: N. p., 1985. Web.
Elliott, G R. New passive helicopter detector. United States.
Elliott, G R. 1985. "New passive helicopter detector". United States.
@article{osti_5458419,
title = {New passive helicopter detector},
author = {Elliott, G R},
abstractNote = {Sandia has developed a new helicopter detector. The device relies on the correlation between the acoustic wave from the helicopter and the resulting coupled seismic wave. A significant feature of this approach is that the detector is completely passive; there is no radio frequency radiation. Intended for deployment as a perimeter sensor around a site, the unit offers a low nuisance/false alarm rate and a high probability of detection for a wide range of helicopters. Reliable detection occurs when the target is at high altitude and also very near the earth's surface. Detection ranges start at one kilometer for the small, four-place, civilian helicopter and approach five kilometers for heavier, military types. The system has two parts: a transducer package containing a microphone and a geophone and a digital processor. Development is underway for a model which will be AC powered and well suited to permanent facilities. A prototype unit using a lightweight, battery powered processor is being constructed for rapid-deployment applications. 6 figs.},
doi = {},
url = {https://www.osti.gov/biblio/5458419}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}

Conference:
Other availability
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