The arrival angle performances for signals scattered by the targets and sea surface and their usage for detection efficiency improvement

The target angular noise is used for detection reliability improvement or as a criterion for pattern recognition. The experimental research of angular fluctuations is conducted using the impulse 8 millimeter-wave radar. Results have shown that the small surface target signals are characterised by a much smaller range of azimuth fluctuations in comparision to that of from the sea surface. While the average value of the surface target bearing coincides with right direction and has a rather small variance of fluctuations, the marine surface is characterised by arrival angle roaming in the limits of the whole highlighted area. Application of the angular noise for target detection is based on its statistical performance modification, when the compact reflector (surface target) appears on the background of spatially distributed sea surface reflections.