Non-coherent detection of radar target in heavy-tailed sea clutter using bi-window non-linear shrinkage map

A novel non-coherent detection scheme for range-spread targets in the sea clutter is developed in this study. The detector utilises the bi-window non-linear shrinkage map (BNSM) to reduce sea clutter while preserving target echoes before energy integration (EI). The EI detector based on BNSM (EI-BNSM) is compared with the conventional non-coherent constant false alarm ratio detectors based on measured data, and the good performance of EI-BNSM detector is reported.