Profiling the rough surface by migration

Xuan Feng, Motoyuki Sato, Cai Liu, Yan Zhang

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


It is often advantageous to estimate the ground surface topography from radar returns. However, the popular method, searching for the brightest pixel in the ground-penetrating radar profile, cannot achieve accurate surface topography in the sharp variable surface case because of the effects of diffraction waves. In this letter, we propose a method to solve the problem and improve the accuracy of surface topography. A migration technique is introduced to refocus the diffraction waves before searching for the brightest pixel. Experimental data have been used to display the effects of diffraction waves and test the method. The result shows that the method can dramatically estimate accurate surface topography even in the sharp variable surface area.

Original languageEnglish
Article number4768707
Pages (from-to)258-262
Number of pages5
JournalIEEE Geoscience and Remote Sensing Letters
Issue number2
Publication statusPublished - 2009 Apr


  • Ground-penetrating radar (GPR)
  • Migration
  • Rough surfaces
  • Topography

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Geotechnical Engineering and Engineering Geology


Dive into the research topics of 'Profiling the rough surface by migration'. Together they form a unique fingerprint.

Cite this