FOPEN Target Detection and Characterization

FOPEN Target Detection and Characterization

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This paper provides a summary of the major advances in the ability of RADAR to detect objects under foliage with sufficient characterization for scientific and tactical applications. Because of the spiky nature of foliage penetration clutter and the propagation losses through foliage, the concept of probability of detection and false alarm from microwave radars needs to be reexamined. Specific areas of RADAR research to improve foliage penetration (FOPEN) synthetic aperture RADAR (SAR) target detection include the uses of polarization diversity and change detection along with their impact on the image formation processing. Target characterization includes techniques to discriminate man-made from natural objects by using polarization and image morphological filtering. The paper starts with a short discussion of the image formation processing chain for efficient target detection. The details of image formation and a consideration of radio frequency interference (RFI) mitigation processing was given. However, it is instructive to look at the whole image formation, target detection, and feature characterization chain to understand the importance of polarimetry and change detection.

Chapter Contents:

  • 6.1 Target Detection Processing
  • 6.2 Polarimetric Scattering
  • 6.3 Target Characterization
  • 6.4 RADCON Processing Development
  • 6.5 Change Detection
  • 6.6 FOPEN ATD/C Summary
  • 6.7 References

Inspec keywords: interference suppression; radar detection; radar clutter; synthetic aperture radar; filtering theory; probability; radar imaging

Other keywords: image morphological filtering; polarization diversity; detection probability; image formation processing; FOPEN SAR target detection; microwave radars; false alarm probability; feature characterization chain; polarization morphological filtering; RFI mitigation processing; propagation loss; radiofrequency interference mitigation processing; polarimetry detection; radar research; foliage penetration clutter; foliage penetration synthetic aperture radar target detection; tactical applications; change detection

Subjects: Filtering methods in signal processing; Radar equipment, systems and applications; Other topics in statistics; Electromagnetic compatibility and interference; Optical, image and video signal processing; Signal detection

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