Ground Penetrating Radar (GPR) Articles

  • Using a Ground Penetrating Radar (Important terms)

    Air Low dielectric (~1), high velocity material i.e. EM waves travel almost at the speed of light. In air the emission pattern of GPR antennas is broader than in the ground. It is recommended to place the GPR as close to the ground as possible to direct emission energy further into a material. Some applications of GPR include emission exclusively in air.Ground / ...


    By Oerad Tech Ltd

  • Technology Array Enables Linked Surveys Above and Below the Surface

    CONSULTANTS at GEL Geophysics LLC, a geophysical and subsurface utility engineering consulting firm based in Charleston, South Carolina, in collaboration with the Ontario, California, office of David Evans and Associates Inc., a professional consulting firm, have combined existing surveying technology to create a system that is far more than a sum of its parts. The innovation is a multi-sensor ...


    By ImpulseRadar

  • Performing Bridge Deck Inspections with Ground Penetrating Radar

    Maintenance of the nation’s infrastructure is a growing concern. No one wants to be delayed by road closures due to emergency repair. Unfortunately, often the organizations responsible for repairing and maintaining our roads are unaware of areas in the roads that need repair until the road is so damaged that it requires emergency repair. In the case of sensitive road areas like ...


    By Encompass Inspections LLC

  • Meltwater flow through a rapidly deglaciating glacier and foreland catchment system: Virkisjökull, SE Iceland

    Virkisjökull is a rapidly retreating glacier in south-east Iceland. A proglacial lake has formed in the last ten years underlain by buried ice. In this study we estimate water velocities through the glacier, proglacial foreland and proglacial river using tracer tests and continuous meltwater flow measurements. Tracer testing from a glacial moulin to the glacier outlet in September 2013 ...


    By IWA Publishing

  • Searching for Archeological Anomalies in the Oluz Mound - Case Study

    The History Of The Oluz Mound The Oluz Mound near Amasya, Turkey, is a very important ancient Turkish settlement with a history stretching back to 4,500 B.C. For archaeologists, this site in Central Turkey is an exciting opportunity to discover not just the area’s history, but the history of the birthplace of civilizations. ...


    By Advanced Geosciences, Inc.

  • GPR to uncover Connecticut`s past

    Crouched beside one of the many stone walls that crisscross Pachaug State Forest in Voluntown, Brian Jones held one end of a rope threaded into a single-wheeled contraption that resembled a high-tech scooter attached to a computer screen. While Debbie Surabian, soil scientist with the Natural Resources Conservation Service, tracked grainy images of what lies underground on a computer screen ...


    By Geomorph Instruments

  • 3D model evolution of a leak based on GPR image interpretation

    This paper presents some aspects of the time propagation of underground water leakage in controlled laboratory conditions using a drilled polyvinyl chloride (PVC) pipe and interpreting ground penetrating radar (GPR) images. GPR pre-processed images are interpreted for easy identification and extraction of surfaces and volumes of water leakage. Finally, the temporal evolution of a water leak is ...


    By IWA Publishing

  • Archaeological survey 2

    The site of the Meadows’ Wesleyan Cemetery in the Adelaide is thought to contain more than 130 unmarked graves. This site initially had a chapel constructed on it in 1840 and the first burial in 1855.  The initial chapel was replaced by a more substantial stone building in 1856.  Burials continued in this cemetery sporadically until the 1940’s although the site became less ...

  • The VIY-2 Ground Penetrating Radar

    Abstract The VIY-2 ground penetrating radar (GPR) with unique sounding possibilities and use simplicity is presented at this paper. The VIY-2 GPR combines all units (synchronizer, transmitting and receiving modules, power supply and antenna system) into single case. The VIY-2 GPR communicates with computer via standard interface RS232 or USB 1.0. Utilized by the VIY-2 GPR technical solutions ...


    By Transient Technologies LLC

  • Ground Penetrating Radar Survey in Podil`lya Karst Area (Ternopil Region, Ukraine)

    Abstract - The paper describes ground penetrating radar (GPR) survey in karst area of PodilTya in Ternopil region, Ukraine that was fulfilled during 2005 year. The GPR examination was made in Ulashkovska and Mlynky caves. The GPR was applied in Ozernaya cave for unknown cavities location. Owing to the GPR survey new gallery was discovered. The research demonstrates an efficiency of the GPR ...


    By Transient Technologies LLC

  • An Impulse Generator for The Ground penetrating radar

    Abstract In last time ground penetrating radars (GPR) are widely used for search and analysis of varied underground objects of natural and artificial origins. Caves and cavities can also be found and investigated with the GPR's aid. Impulse generator is the key unit, which determine GPR's parameters: depth of penetrating, accuracy et al. Serial power drift diodes are used for ...


    By Transient Technologies LLC

  • Transmitter/Receiver Pulse-Driven Antenna Arrav with Near Field Beam-Forming for UWB Subsurface Imaging Radar

    Abstract: The paper is devoted to design of impulse or equivalent ultra-wide baud array antenna for subsurface radar system. Receiving elements of this autenna are arranged in array with small physical aperture and polarimetric features. Two transmitting element support two polarization states for radiating signals. The radar antenna provides down-looking scanning in subsurface medium for small ...


    By Transient Technologies LLC

  • Topographic Correction of GPR Profile Based on Odometer and Inclinometer Data

    Abstract— Usually, data obtained by ground penetrating radar (GPR) are displayed as a rectangular 2D picture (profile), vertical and horizontal axes of which are proportional to depth and traveled distance, respectively. Surface, generally, is not horizontal, that leads to distorted view of irregularities in the GPR profile. To eliminate these distortions a topographic correction is used. ...


    By Transient Technologies LLC

  • Inspection of Internal Structure of Walls by Subsurface Radar

    ABSTRACT This paper deals with the application of ultra-wide band time-domain subsurface radars, equipped with special signal processing techniques, to realize non-invasive image testing of the building walls' internal structure that are made with brick, stone, concrete, reinforced concrete and other construction materials. There are two normally associated problems, qualitative and ...


    By Transient Technologies LLC

  • Time-Domain Physical-Optics Simulation Technique for Electromagnetic Imaging by Subsurface Radar

    Abstract - This paper presents a 2-D scalar numerical time-domain (TD) model based on physical optics (PO) for simulation of electromagnetic phenomena. This TD-PO model should be applied for detection and location of objects hidden in opaque media by subsurface TD radar system. The proposed approach allows considering of basic physical principles, governing electromagnetic radiation and ...


    By Transient Technologies LLC

  • Drift Step Recovery Diode Transmitter for High Power GPR Design

    Some elements of the modern ground penetrating radar (GPR) determine its performance factor, resolution and depth of sounding. There are impulse transmitter, ultra-wide-band receiver as well as transmitting and receiver antennas. Improvement of the GPR's parameters is usually achieved by modernization of receiving circuits, antenna design, decreasing of input noises and using of complex ...


    By Transient Technologies LLC

  • Drift Step Recovery Devices Utilization for Electromagnetic Pulse Radiation

    Abstract—Utilization of drift step recovery devices for high power electromagnetic short pulse radiation is discussed here. Possibility of powerful impulse radiation is connected with decision of two problems: how to reach stable extremely powerful impulse of nanosecond and subnanosecond duration with repetition rate of dozens and hundreds of kHz; and how to bring to antenna and radiate ...


    By Transient Technologies LLC

  • Adaptive Kinetic Antenna

    Abstract - The paper describes a method of kinetic antenna development that can be adapted to environmental conditions. The kinetic antenna is a variety of integrated into impulse generator active antenna that is used for kinetic energy accumulation. Such antennas are attractive for ground penetrating radars owing to its possibility to change radiation spectrum in according with ground ...


    By Transient Technologies LLC

  • An Inertial Measurement Unit Application for a GPR Tracking and Positioning

    Abstract Abilities of an inertial measurement unit (IMU) for ground penetrating radar (GPR) tracking and positioning are presented at this paper. The IMU operation principle is based on calculating of the device's orientation in space via measurement of linear accelerations and angular velocities. Features of the IMU, GPS and wheel odometer are compared. Principal scheme of the IMU consisted ...


    By Transient Technologies LLC

  • Sinkhole investigation case study

    Proposed Landfill Site - Sumter County, Florida A geophysical site characterization study was performed by GeoView to assist in the placement of a planned Class 2 Landfill in Florida. The survey area was approximately 160 acres. GeoView performed a ground penetrating radar (GPR) study map the lateral boundaries and determine apparent severity of karst (sinkhole) features. Electrical ...


    By GeoView, Inc.

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