舰船尾流后向散射光信号特征的判识方法

为了自适应获得舰船尾流的有无信息以及距探测器的距离信息,基于海上采用激光探测目标船尾流所获得后向散射光信号的曲线特征,运用极小值筛选法对去噪平滑后的舰船尾流后向散射光信号进行了处理,准确获得了舰船尾流的有无信息以及距探测器的距离信息。同时,研究讨论了海上所测得的信号去噪后,与水体后向散射光信号按照最小均方误差准则进行拟合相减获得的纯尾流后向散射光信号,构造了纯尾流后向散射光信号的简单模型,并通过对其进一步的处理获得了尾流厚度相关信息。这一结果对尾流信息的判识是有帮助的。

The backscattering optical signal of ship wake character

Based on the characteristic information of the backscattering optical wake signal, used the minimum screening method to conduct those smoothed signal. The result shows that the existence and the distance between the detection and the target ship can be self-adaptation obtained perfectly by using this method. After anti-ground noise, used the wake flow backscattering optical signal to subtract the water backscattering optical signal based on the criterion of least mean-squared error can obtain pure wake signal ,and established the simple model of the pure wake signal, the relevant information of the wake thickness can be self-adaptation obtained by the further conduction.