Human micro-Doppler signature extraction in the foliage-penetration environment
It is a challenge to detect and identify the targets in the foliage-penetration environment. Radar is superior to other sensors in this poor visibility condition. The micro-Doppler signature is one of the most prominent information for target classification and identification in radar applications. In this paper, a complete procedure is proposed for human micro-Doppler signature extraction in the foliage-penetration environment. It consists of six steps, including clutter suppression, signal coherent accumulation, target tracking, trajectory interpolation, micro-Doppler calculation and signature extraction. The experimental results verified the effectiveness of the proposed procedure.