Wave-oriented signal processing of dispersive time-domain scattering data

Lawrence Carin, Leopold B. Felsen, David R. Kralj, H. S. Oh, W. C. Lee, S. Unnikrishna Pillai

Research output: Contribution to journalArticlepeer-review


Phase-space data processing is receiving increased attention because of its potential for furnishing new discriminants relating to classification and identification of targets and other scattering environments. Primary emphasis has been on time-frequency processing because of its impact on transient, especially wideband, short-pulse excitations. Here, we investigate the windowed Fourier transform, the wavelet transform, and model-based superresolution algorithms within the context of a fully quantified and calibrated test problem investigated by us previously: two-dimensional (2-D) short-pulse plane wave scattering by a finite periodic array of perfectly conducting coplanar flat strips. Because the forward problem has been fully calibrated and parametrized, some quantitative measures can be assigned with respect to the tradeoffs of these time-frequency algorithms, yielding tentative performance assessments of the tested processing algorithms.

Original languageEnglish (US)
Pages (from-to)592-600
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number4
StatePublished - 1997


  • Scattering
  • Signal processing
  • Time-domain analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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