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.