Abstract
To implement ballistic multi-target resolution and micro-Doppler extraction with similar structures, in this paper, we propose a novel algorithm based on code selection. Based on the sliding scattering model, the nearest neighborhood of the points in the time-frequency spectrum is first disposed with multi-scale codes by analyzing the variations in the micro-Doppler rate of change, and multiple targets are then effectively distinguished by stratification processing. We obtain the azimuth-code sequences on the stratified region for advanced registration, and we obtain the micro-Doppler information based on the zero-point backtracking method. The simulation result indicates that the method is capable of anti-noise, and is suitable for a variety of micro-motion scattering models. However, above all, it can effectively overcome the interference of intersection regions for multi-target resolution and micro-Doppler curve separation in multi-point scattering models, thus implementing the multi-target resolution and micro-Doppler extraction well.
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