To solve the effect of the range imaging broadening, the speed estimation of high-speed non-cooperative target of inverse synthetic aperture lidar translated for the estimation of the frequency modulation slope. A parameter estimation method of fractional Fourier transform (FRFT) was presented. This method could effectively estimate the frequency modulation slope. Under low SNR, the error of the estimate was less than 0.03. The research laid the foundation for velocity compensation and 2-D range-Doppler imaging of the follow-up.

Based on Radar mosaic 3D data, automatic weather stations and disaster wind data, twenty cases of thunderstorm gale from 2008 to 2012 in North China are analyzed to develop a automated detection of thunderstorm gale with fuzzy logical based algorithm. The capability of the algorithm was examined.