Time-domain sensing of targets buried under a rough air-ground interface

T. Dogaru, L. Carin

Research output: Contribution to journalArticlepeer-review


We consider plane wave time-domain scattering from a fixed target in the presence of a rough (random) surface with application to ground penetrating radar. The time-domain scattering data are computed via a two-dimensional (2-D) finite-difference time-domain (FDTD) algorithm. In addition to examining the statistics of the time-domain fields scattered from such a surface, we investigate subsurface target detection by employing a (commonly used) matched-filter detector. The results of such a detector are characterized by their receiver operating characteristic (ROC), which quantifies the probability of detection and probability of false alarm. Such ROC studies allow us to investigate fundamental assumptions in the matched-filter detector: that the target response is deterministic and the clutter signal stochastic, with the two signals treated as additive and independent.
Original languageEnglish (US)
Article number662655
Pages (from-to)360-372
Number of pages13
JournalIEEE Transactions on Antennas and Propagation
Issue number3
StatePublished - Mar 1 1998
Externally publishedYes


  • Time domain analysis
  • Radar scattering
  • Detectors
  • Rough surfaces
  • Surface roughness
  • Finite difference methods
  • Radar detection
  • Probability
  • Surface waves
  • Ground penetrating radar


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