Micro-Doppler analysis and parameter estimation of the rotating linear rigid target

摘要

Micro-Doppler signature produced by micro-motion contains movement and structure information which is useful for radar classification and recognition. Aimed to classification and recognition of the target with the blades, the motion dynamics and echo models of the rotating linear rigid body in single frequency are set up. The micro-Doppler modulations of the rotating single point and whole linear rigid body are quantitatively analyzed. Furthermore, the methods by Smoothed Pseudo Wigner-Ville distribution and image processing are proposed for micro-Doppler modulation extraction and parameter estimation. Finally, simulation results are covered to demonstrate the correctness of theoretical analysis and the validity of the parameter estimation.