Detection of low observable targets in sea clutter by statistical dithering

Detection of slowly moving low RCS targets in heavy sea clutter is difficult due to close Dopplers. If an artificial clutter-like signal is injected in IF stage or after the linear envelope detector, the statistics of the sea clutter can be altered adequately for a better detection. We have shown that this process, which may be called statistical dithering, can significantly improve the detection performance.