基于分维特征的舰船目标的检测

Radar ship targets detection based on fractal characteristics

在分析海上目标雷达回波与海杂波分维特性的基础上，提出了一种基于海面散射分维特性的检测方法．该方法以分数布朗运动作为数学模型，提取出海杂波与目标回波在分形模型拟合误差和分维尺度变化量这两方面的特征，并利用它们的固有差异进行检测．实验表明，该方法具有较高的可靠性和准确性．

The ability of a radar to detect the ship targets is mainly affected by the sea clutter. In this paper, a new method of detection based on fractal characteristics of sea surface scattering is proposed, in which the fractional Brownian motion is employed to model the sea background. The intrinsic difference in fractal characters between the sea clutter and the echoes from a target is used to identify ship targets. The experiments show that the method is reliable and can efficiently improve the accuracy of detection.