Coning target micro-motion feature extraction via scattering centre reconstruction

The issue of extracting micro-Doppler (mD) information of the coning target radar echoes with or without Doppler aliasing is considered using scattering centre reconstruction combined with the time-frequency analysis (TFA) method. The effectiveness of the presented method is investigated using real measured radar signal experiments. For radar echoes without Doppler aliasing, extraction of the mD information of the coning target using traditional TFA can be obtained. However, using the presented method the mD information is more precise. For radar echoes with Doppler aliasing, there are significant differences in precision between the traditional TFA and the presented methods, and the mD information is smeared using the traditional TFA. Nevertheless, the extraction of mD information can be achieved by the presented method.