| Data Collection with Vehicular-Based Systems - Pole Mountain, WY |
Sep 2012 |
41 pages |
| Authors:
Stephen Billings; SKY RESEARCH INC ASHLAND OR
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 | This demonstration report describes the data collection, processing and analysis of cued-interrogation data collected with Sky Research's SKY3D vehicular platform at the Pole Mountain Target and Maneuver Area (PMTMA), near Laramie, WY. SKY3D integrates a MetalMapper sensor, real-time-kinematic global positioning system and inertial measurement unit (in the form of the Novatel SPAN) and a custom user interface on a Kubota all-terrain-vehicle. Cued interrogation data were collected by dwelling for 30 ... |
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| Demonstration of MPV Sensor at Yuma Proving Ground, AZ |
JUN 2011 |
72 pages |
| Authors:
Nicolas Lhomme; SKY RESEARCH INC ASHLAND OR
|
| The Man-Portable Vector electromagnetic induction sensor is a new-generation instrument designed to extend classification of unexploded ordnance (UXO) to sites where vegetation or terrain limit access to vehicle-based advanced geophysical platforms. The MPV was tested at Yuma Proving Ground, Arizona UXO Standardized Test Site in October 2010. Most demonstration objectives were attained. Detection objectives were exceeded with 100% target detection within 0.3-meter depth and 90% within 1 meter, zero false ... |
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| Exploiting EMI Signals During Active Transmission |
12 Aug 2010 |
144 pages |
| Authors:
Gregory Schultz; Jonathan Miller; Leonard Pasion; SKY RESEARCH INC ASHLAND OR
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| Theoretically, signals measured during the transmit period (the on-time) provide information about the instantaneous magnetization and current gathering in objects illuminated by a transmitter. In this SEED project, we examined the potential of on-time EMI data for improving the detection and discrimination of UXO and in rejecting clutter and noise. Through a combination of modeling and analysis of experimental data, we found that on-time data provide a number of theoretical ... |
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| Next Generation HeliMag UXO Mapping Technology |
Oct 2009 |
101 pages |
| Authors:
Stephen Billings; David Wright; SKY RESEARCH INC ASHLAND OR
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| Technical innovations were made to an existing helicopter magnetometry platform to improve performance in WAA. Wireless telemetry was implemented to remove the sensor operator from the helicopter. Based on a survey design study, the number of magnetometers was increased from 7 to 13, decreasing the across line sensor spacing from 1.5 to 0.75 m and allowing full sampling of the magnetic field at heights 1.5 m or greater, enabling the ... |
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| Advanced UXO Discrimination using Magnetometry: Understanding Remanent Magnetization |
Sep 2009 |
83 pages |
| Authors:
Stephen Billings; Yaoguo Li; Whitney Goodrich; SKY RESEARCH INC ASHLAND OR
|
| The use of apparent magnetic remanence to prioritize the digging order at sites contaminated by unexploded ordnance was investigated. A mobile device for measuring the magnetic remanence of field samples was constructed and deployed to two field sites and to make before firing and after impact measurements of 81 mm mortars at a test facility. Results from the field sites indicated that most, but not all, excavated ordnance items had ... |
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| Precision Geolocation of Active Electromagnetic Sensors Using Stationary Magnetic Sensors |
Sep 2009 |
138 pages |
| Authors:
Stephen Billings; Kyle Blay; Keith Leslie; David Tilbrook; SKY RESEARCH INC ASHLAND OR
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| The objective of this project was to conduct a proof-of-principle demonstration that a single, fixed gradiometer or vector magnetometer could track an active EM sensor at sub-centimeter position and sub-degree accuracy over short baselines. We have shown that the concept of locating a UXO cart via the measurement of its transmitter signal is sound. Further work is warranted to develop a more precise system. Some of the areas that we ... |
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