Estimating weak sinusoidal frequencies embedded in radar clutter using generalized chaos synchronization

In this paper, a novel approach for estimating sinusoidal frequencies embedded in radar clutter spectrum based on generalized chaos synchronization is proposed. The proposed method is shown to be able to extract the weak sinusoidal signal even when the target frequencies are located inside the clutter spectrum. The unbiasedness of proposed approach is also analyzed. Using real radar clutter data, it is shown that the proposed method is superior to the standard estimation methods.