RADIATION CHARACTERISTICS OF MILITARY CLOTHING OBSERVED WITH A PASSIVE DETECTION SYSTEM
Abstract
Among the various modern detection systems is a class of devices that are sensitive to the longwave radiation commonly emitted by an object when it is at or near body temperature. This report discusses one such commercial image- forming instrument from the perspective of its ability to detect individual soldiers. Analysis of the characteristics of this instrument suggests that its maximum useful range is about 400 meters. In practice, it is possible to produce thermograms at ranges of up to 250 meters. Thermograms of a simulated human figure in various states of dress were made at controlled ambient temperatures. The instrument is shown to be capable of producing images even when the figure is covered with a great amound of insulation. This suggests that efforts to reduce the radiation from a clothing assembly by reducing the temperature of its surface is not feasible. The alternative approach to reducing the probability of detection by passive infrared detection systems requires that the emittance of the surface of the garments be reduced.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1966
- Accession Number
- AD0481656
Entities
People
- Alfred P. Merola
- Alvin O. Ramsley
Organizations
- United States Army Soldier Systems Center