Micro-motion modelling and analysis of extended ballistic targets based on inertial parameters

Mirco-motion analysis of ballistic targets is a useful tool for discriminating different targets in the aerospace. A micro-motion model combining inertial parameters with a target radar coss-section is presented. The relation between target micro-motion states and inertial parameters is deduced. By using the time-frequency transform method, the micro Doppler spectrogram is obtained. Simulation results show that the proposed method can be used for evaluation of ballistic targets recognition and discrimination.