Analysis of track modulus estimation radar (GPR) data models using ground penetrating

Ram Mohan Narayanan, Raghu N. Machavaram, Dingqing Li, Samy E.G. Elias

Research output: Contribution to journalArticle

Abstract

The use of ground penetrating radar (GPR) as a non-destructive and non-invasive technology for imaging subsurface features and assessing the integrity of railroad track substructure is discussed. The method is based on the principles of electromagnetic wave reflection and transmission at interfaces between distinct layers of varying dielectric properties. Repetitive electromagnetic pulses of energy at an appropriate frequency are launched into ground, and reflections from various subsurface layers are recorded in the form of an image. Higher frequency signals can not penetrate deep into the subsurface, but can provide high-resolution image of the upper layers. Lower frequencies can penetrate better and provide useful information about deeper layers.

Original languageEnglish (US)
JournalRail International
Volume35
Issue numberOCT./DEC.
StatePublished - Oct 1 2004

Fingerprint

Electromagnetic wave reflection
Electromagnetic wave transmission
Electromagnetic pulse
Railroad tracks
Image resolution
railroad
Dielectric properties
Data structures
integrity
Radar
energy
Imaging techniques

All Science Journal Classification (ASJC) codes

  • Transportation
  • Mechanical Engineering

Cite this

Narayanan, Ram Mohan ; Machavaram, Raghu N. ; Li, Dingqing ; Elias, Samy E.G. / Analysis of track modulus estimation radar (GPR) data models using ground penetrating. In: Rail International. 2004 ; Vol. 35, No. OCT./DEC.
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Analysis of track modulus estimation radar (GPR) data models using ground penetrating. / Narayanan, Ram Mohan; Machavaram, Raghu N.; Li, Dingqing; Elias, Samy E.G.

In: Rail International, Vol. 35, No. OCT./DEC., 01.10.2004.

Research output: Contribution to journalArticle

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