Applying fractional Fourier transform to radar imaging of moving targets

A fractional Fourier transform based method for radar imaging of moving targets is presented in this paper. Compared with the traditional joint time-frequency approaches, it can achieve a better result of clutter cancellation by using optimal filtering in the fractional Fourier domain due to linear and rotational properties of this transform. By using this method, we can carry out moving targets detection, LFM signal parameters estimation as well as clutter cancellation at the same time under the time-frequency analysis. The effectiveness of this method has been tested through simulation.