Avian Detection and Monitoring Using Frequency-stepped Chirp Signal Radar

The bird aircraft strike hazard (BASH) is a worldwide problem to aviation, which deprives lots of properties and lives every year. Avian radar systems are necessary to be developed for avian surveillance and early warning. In this paper, the frequency-stepped chirp signal radar is utilized to obtain high range resolution for micro-Doppler features extraction by means of synthetic bandwidth. The micro-Doppler features provide important information for avian detection and monitoring. The micro-Doppler effect in frequency-stepped chirp radar is analyzed in the paper and some micro-Doppler feature extraction methods are introduced.