Analysis of orthogonal matching pursuit based subsurface imaging for compressive ground penetrating radars

Authors

MEHMET ALİ ÇAĞRI TUNCER
ALİ CAFER GÜRBÜZ

DOI

10.3906/elk-1104-3

Abstract

It is shown that compressive sensing (CS) theory can be used for subsurface imaging in stepped frequency ground penetrating radars (GPR), resulting in robust sparse images, using fewer measurements. Although the data acquisition time is decreased by CS, the computational complexity of the minimization based imaging algorithm is too costly, which makes the algorithm useless, especially for extensive discretization or 3D imaging. In this paper, a greedy alternative, orthogonal matching pursuit (OMP) is used for imaging subsurface and its performance under various conditions is compared to CS imaging method. Results show that OMP could reconstruct sparse signals robustly as well as CS imaging. It is faster and easier to implement so it can be said that OMP is a fascinating alternative to CS imaging method for subsurface GPR imaging.

Keywords

Ground Penetrating Radar (GPR), Radar, Subsurface Imaging, Compressive Sensing (CS), \ell_1 minimization, Orthogonal Matching Pursuit (OMP)

First Page

979

Last Page

989

Recommended Citation

TUNCER, MEHMET ALİ ÇAĞRI and GÜRBÜZ, ALİ CAFER (2012) "Analysis of orthogonal matching pursuit based subsurface imaging for compressive ground penetrating radars," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 20: No. 6, Article 11. https://doi.org/10.3906/elk-1104-3
Available at: https://journals.tubitak.gov.tr/elektrik/vol20/iss6/11