Resonance-region target detection with wideband VHF radar

VHF radar shows great promise in detecting stealth targets, since it works in resonance regions. Wideband VHF radar, as a new radar system, has an enormous potential. In this paper, target detection with wideband VHF radar that compensates for the fluctuation of targets´ RCS between different frequencies in the resonance region is introduced. The Boeing 747-200 model and the Predator model were designed for the study, and the aircrafts were studied in the 40~80MHz frequency band. Results show that: (1) the wideband detection is better than the narrowband single frequency detection; and (2) for greatly fluctuating targets, the wideband detection is better than the multi-frequency detection.