摘要 :
The overall goal of the Streak Tube Imaging LIDAR (STIL) project is to develop a mine identification capability, specifically to use STIL technology to demonstrate the technical feasibility of providing a tactical mine identificat...
展开
The overall goal of the Streak Tube Imaging LIDAR (STIL) project is to develop a mine identification capability, specifically to use STIL technology to demonstrate the technical feasibility of providing a tactical mine identification capability to airborne mine countermeasures (AMCM) forces. The projected payoff is a decrease in mine clearance time, an increase in clearance effectiveness, and a reduction in the cost per mine cleared. The resulting system must be is compatible and interchangeable with the AN/AQS-20 volume search sonar (VSS) section.
收起
摘要 :
Chemical sensing of explosives may allow differentiation between mines and other mine-like objects, especially if close proximity to the targets can be achieved. Robotic crawlers are well suited to achieve the required proximity a...
展开
Chemical sensing of explosives may allow differentiation between mines and other mine-like objects, especially if close proximity to the targets can be achieved. Robotic crawlers are well suited to achieve the required proximity and have added advantages, including stability on the bottom and station-keeping. We have performed initial tests with an explosive sensor mounted on crawlers and two types of targets containing real explosives. In the tests, the robot successfully detected both targets at significant distances. For the initial test, the crawler approached the target from a direction upcurrent of the target so that any chemical signature emanating from the target would be transported away from the sensor. No sensor response was noted in this case. The robot was then repositioned by executing a number of turns placing the robot and sensor downcurrent from the target. Shortly after arriving in this position, intermittent sensor responses were observed. These responses were similar to what is observed in the laboratory. The response to the targets was rapid and reversible. In order to gain insight into how most effectively to sample the area around mine-like objects, we are also simulating chemical orientation using spatial modeling and analysis tools.
收起
摘要 :
Know Your Enemy presents VC mines and traps with the purpose of providing you with a knowledge of various types of VC mines. This will assist you in avoiding accidents which may be caused by these mines which you may often encount...
展开
Know Your Enemy presents VC mines and traps with the purpose of providing you with a knowledge of various types of VC mines. This will assist you in avoiding accidents which may be caused by these mines which you may often encounter during operations.
收起
摘要 :
The history of mine warfare is traced. Technological advances applied to mine development and use have demonstrated an increasing effectiveness at modest cost. The efficacy of mines, if fully exploited, should have an important de...
展开
The history of mine warfare is traced. Technological advances applied to mine development and use have demonstrated an increasing effectiveness at modest cost. The efficacy of mines, if fully exploited, should have an important deterrent effect on conventional wars.
收起
摘要 :
This report summarizes all relevant findings and conclusions regarding capability of high-energy projectile impact to operate effectively in an open pit mining environment and to successfully handle secondary breakage and bench sc...
展开
This report summarizes all relevant findings and conclusions regarding capability of high-energy projectile impact to operate effectively in an open pit mining environment and to successfully handle secondary breakage and bench scale problems. A silenced, aimable,mobile projectile launcher was designed and fabricated,using a Government-furnished smooth-bore, 90mm cannon. The silenced launcher was tested at the contractor's test site prior to shipment to ANAMAX Mining Co.'s Twin Buttes mine near Tucson,Ariz. Demonstration tests were conducted at an inactive waste dump in the mine on 39oversize boulders to determine the relationship between boulder size and projectile energy required for secondary breakage. The high energy projectile impact method was tested on an additional 23boulders in the working mine and on 31areas of potentially loose rock high on the pit walls. Most of the secondary breakage tests were successful and acceptable for open-pit mining purposes without producing large amounts of fly rock.
收起
摘要 :
Articles: High Frquency/Low Frequency Synthetic Aperture Sonar; AutomatedDetection Classification of Sea Mines in Sonar Imagery; Underwater Electro-Optical System for Mine Identification; and Advances in the Magnetic Detection and...
展开
Articles: High Frquency/Low Frequency Synthetic Aperture Sonar; AutomatedDetection Classification of Sea Mines in Sonar Imagery; Underwater Electro-Optical System for Mine Identification; and Advances in the Magnetic Detection and Classification of Sea Mines and Unexploded Ordnance.
收起
摘要 :
This brief will consider logistic and light armored vehicles since medium and heavy combat vehicles are more easily able to have mine protection due to heir massive structure. Mine protection is a minor but important part of their...
展开
This brief will consider logistic and light armored vehicles since medium and heavy combat vehicles are more easily able to have mine protection due to heir massive structure. Mine protection is a minor but important part of their original design. It is not particularly efficient or interesting, but it is there. This brief only considers protection of the occupant from mine effects. Protection of vehicle function or reparability is not a high priority.
收起
摘要 :
The principal uncertainties in clearing a minefield are about the number and type of mines that have not yet been removed. In this paper, we take the point of view that the number of mines should be thought of as a random variable...
展开
The principal uncertainties in clearing a minefield are about the number and type of mines that have not yet been removed. In this paper, we take the point of view that the number of mines should be thought of as a random variable M, and our main object is to show the advantages of a particular 'Katz' class of probability distributions for M. We assume throughout that the result of clearance effort is to remove every mine with a known 'clearance level' p, independently of all other mines. If p=1, we have the case of exhaustive clearance. A theory is hardly required when clearance is exhaustive, and the methods outlined below will be of no use, so we assume p.
收起
摘要 :
Transceiver and methods are included that are especially suitable for detecting metallic materials, such as metallic mines, within an environment. The transceiver includes a digital waveform generator used to transmit a signal int...
展开
Transceiver and methods are included that are especially suitable for detecting metallic materials, such as metallic mines, within an environment. The transceiver includes a digital waveform generator used to transmit a signal into the environment and a receiver that produces a digital received signal. A tracking module preferably compares an in-phase and quadrature transmitted signal with an in-phase and quadrature received signal to produce a spectral transfer function of the magnetic transceiver over a selected range of frequencies. The transceiver initially preferably creates a reference transfer function which is then stored in a memory. Subsequently measured transfer functions will vary depending on the presence of metal in the environment which was not in the environment when the reference transfer function was determined. The system may be utilized in the presence of other antennas, metal, and electronics which may comprise a plastic mine detector for detecting plastic mines. Despite the additional antennas and other metallic materials that may be in the environment due to the plastic mine detector, the magnetic transceiver remains highly sensitive to metallic material which may be located in various portions of the environment and which may be detected by sweeping the detector over ground that may contain metals or mines.
收起
摘要 :
Research over the last 9 years has resulted in an effective mine classification approach that involves the use of image-segmentation based screening methods followed by multilayer perceptron networks for mine classification. The p...
展开
Research over the last 9 years has resulted in an effective mine classification approach that involves the use of image-segmentation based screening methods followed by multilayer perceptron networks for mine classification. The present approach centers around a baseline 23 Feature set related to highlight, shadow, and highlight/shadow contrast statistic based segmentations, and the use of associated statistical and shape related factors. In the work described here we investigate the improvement of baseline performance by incorporating image texture related features such as Cooccurrence Matrix related factors.
收起
