22 Articles found
Transient Technologies LLC Articles
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GPR archaeological investigation of Wanda Mound in Krakow (Poland)
Last December 2016 GPR24.COM.PL Company (Poland) participated in an archaeological investigation on the legendary Wanda Mound in Krakow city. This hill was built supposedly in VII—VIII centuries and it is assumed to be the resting ...
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Choosing the correct Data Acquisition step for GPR
efore GPR surveying we have to set step of acquisition in Synchro program settings: We got different GPR profiles with different values of Step of acquisition. See the results below: Pipe3.sgpr GPR profile: ...
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Locating pipes and cables case study
GPR can be used to determine the location and depth of metallic, non-metallic, plastic, concrete and asbestos-concrete utilities, and cables (power, signal, etc.) Locating of City Utilities The VIY3-300 GPR was used for locating of city ...
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Geotech and construction case study
Pre-Construction Surveys The VIY2-300 GPR was used to survey Korolenko Square and contiguous area in Rivne town from 5 to 6 December 2006. Surveys were carried out both on the lawns and reinforced paving slabs. Large building structures, ...
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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 ...
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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 ...
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Simulation of Subsurface Electromagnetic Wave Propagation and Scattering.
A subsurface radar technique is used for a microwave non-invasive probing in opaque regions in soils, rocks, fresh water, brick, concrete etc. There is an inherent complexity of a subsurface radar survey some. Unavoidable features of a radar ...
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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 ...
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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 ...
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Target Visualization Approach Based on Phased-Array Effect in Antennas with Transient Excitation
Introduction Target visualisation is main goal of the practical radargram recovering procedure. There are a lot of visualisation algorithms (2D-filtering. migration. FFT etc.) that is mainly based on final images processing. Existent methods are not ...
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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 ...
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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 ...
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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) ...
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On Radiation Efficiency and Radiating Capability of Impulse Antennas
Abstract Electromagnetic radiation efficiency and radiating capability of impulse antenna are discussed at this paper. A term of impulse antenna is referred to an electromagnetic pulse radiation system with short pulse response. Relation between ...
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Electromagnetic Impulse Radiator
Abstract A novel method of short electromagnetic pulse producing by electrical dipole antenna is a topic of this paper. This method assumes the antenna current interruption instead of voltage pulse excitation. In this case antenna-generator matching ...
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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 ...
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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 ...
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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 ...
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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 ...
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UWB Subsurface Radar With Antenna Array for Imaging Of Internal Structure Of Concrete Structural Elements
Introduction The basic design principals implemented in the advanced UWB radar with time-domain operation and with the 100 - 900 MHz effective band are considered including real synthetic array and full-polarimetric schema. The radar is installing ...