The detection performance of the Moving Target Detection (MTD) method of the radar target descends badly in complex sea clutter background

Also

The Locally Optimum Detector only works well for the weak target in the low signal clutter ratio background

Therefore

a fractional lower order matched filter detection method is proposed

which is obtained based on the fractional lower order statistics.The proposed method suppresses the non-Gaussian clutter by the signed power and whitens the correlated clutter by decomposing the clutter fractional lower order covariance matrix

at last the matched filter is used to get higher signal clutter ratio.Simulations and real data results show that

the detection performance of the proposed method obviously outperforms the MTD and LOD method in non-Gaussian correlated clutter background.