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Imaging based on correlation function for buried objects identification

Gharamohammadi, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1109/JSEN.2018.2859170
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2018
  4. Abstract:
  5. Ground-penetrating radar is usually employed to detect such buried objects beneath the ground as pipes, cables, and mines. There exist several methods for monitoring the buried objects, some of which require a relatively long time and heavy computations to create an appropriate image. The signal sent to the environment is reflected due to the characteristic features of the environment, which eventually leads to detection of the buried objects. For detection of the near ground surface targets, there is a very poor distinguishability between the signal reflected from the buried objects and the one from the ground itself. Buried objects in this case are detectable using ultra-wide band signals in the frequency domain. Comparing the reflected signals from the ground with those from the objects in the aforementioned case, one can detect the buried objects. In this paper, the reflected signal from the ground is canceled using the time-gating method. To detect the buried objects, the signals reflected from different position zones are compared with each other based on the concept of correlation function which is suggested in this paper. The results of this paper are also compared with those of the reflected-power and back-projection methods. We demonstrate that by employing the proposed method, it is possible to detect all buried objects in these environmental conditions. © 2001-2012 IEEE
  6. Keywords:
  7. Back projection algorithm ; Ground penetrating radar ; Echo suppression ; Frequency domain analysis ; Geological surveys ; Geophysical prospecting ; Ground penetrating radar systems ; Object detection ; Tracking radar ; Backprojection algorithms ; Clutter cancellation ; Correlation function ; Discontinuity detection ; Ground Penetrating Radar ; Correlation detectors
  8. Source: IEEE Sensors Journal ; Volume 18, Issue 18 , 2018 , Pages 7407-7413 ; 1530437X (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8418358