Ground Penetrating Radar (GPR) has been approved as very successful sensing device for various kinds of investigations & detection of buried targets like pipe, (Water, Gas, Electric) cable, archaeological objects, voids, unexploded ordinances (UXO) etc. Such GPR using electromagnetic pulse is required to reduce pulse-width for high resolution and increase transmitting power for signal enhanceme...

Chemical vapors originating from the explosive charge within landmines and unexploded ordnance (UXO) form a chemical “signature” unique to these devices. The fact that canines can detect this signature was a primary motivation for the Defense Advanced Research Projects Agency’s (DARPA) Dog’s Nose Program. One goal of this program was to develop electronic chemical sensors that mimic the canine’...

In many sensing problems one has limited labelled data with which to learn a classifier. The acquisition of labels may be expensive, and therefore it is desirable to develop a criterion that defines which labels would be most informative to classifier design if they could be acquired. In addition, it is desirable to determine in advance all examples for which labels are desirable, so one may pl...

Ž . The detection of buried objects, particularly hazardous waste containers and unexploded ordnance UXO , has gained significant interest in the Unites States in the late 1990s. The desire to remediate the thousands of sites worldwide has become an increasing concern and the application of radar to this problem has received renewed attention. The US Ž . Department of Energy’s Special Technolog...

Laos is a small country about the size of Utah. A Lao physician jokingly told me with a sad smile that "Americans thought Laos was a part of Vietnam during the war." The war in Laos was, however, an intentional secret war. The number of bombs dropped during the Vietnam War was greater than the bombs dropped in Europe during World War II. This bombing, which left an enormous number ofUXOs (unexp...

Although different biological approaches for detection of anti-personnel mines and other unexploded ordnance (UXO) have been entertained, none of them has been rigorously documented thus far in the scientific literature. The industrial 2,4,6 trinitrotoluene (TNT) habitually employed in the manufacturing of mines is at all times tainted with a small but significant proportion of the more volatil...

Pedemis (PortablE Decoupled Electromagnetic Induction Sensor) is a time-domain handheld electromagnetic induction (EMI) instrument with the intended purpose of improving the detection and classification of UneXploded Ordnance (UXO). Pedemis sports nine coplanar transmitters (the Tx assembly) and nine triaxial receivers held in a fixed geometry with respect to each other (the Rx assembly) but wi...