Analysis of OTH Radar Detection Ability in Sea Clutter

The atmospheric duct over sea could realize over-the-horizon detection of the microwave radar,and also due to intensifying the echo signal of sea clutter,reduce radar detection ability.The echo powers of sea clutter and target in the typical duct conditions and with radar in different frequencies,elevation angles,and antenna heights are simulated and computed by using radar ability evaluation mode.The analysis results show that through proper choice of radar system parameters,the disturbance of sea clutter could be effectively reduced,and no far-distance target easily missed.