USAGE OF RADAR SIGNAL PHASE STRUCTURE ENTROPY FOR DETECTION OF GROUND OBJECTS WEAK MOVEMENT BEHIND FOLIAGE OF SHRUBS AND TREES

Abstract

The article presents the results of research on opportunities of revealing a weak target movement in foliage-penetration environment with the use of Stepped Frequency Continuous Wave Radar in the frequency range of 1 200…1 800 MHz. The entropy weighed coherent integration (EWCI) algorithm is adopted to phase fluctuations of radar returns and it allows the multipath effects to be mitigated and the detectability and visibility of targets behind foliage brushes and trees to become significantly better.

Keywords

• entropy
• phase spectrum
• radar system
• target detection in the foliage environments