基于分布式垂直线列阵的目标运动分析

A target moving analysis based on distributed vertical linear arrays

为对水下运动目标进行有效定位,提出了一种基于分布式垂直线列阵的目标运动分析方法。基于垂直线列阵已具备目标测距能力的前提,首先分析了单垂直线列阵对目标的测速问题,利用最小二乘法实现了对目标的稳健测速;进一步给出了双垂直线列阵对目标航迹情况的估计,当有三个及以上的垂直线列阵先后探测到目标时可基本实现对目标运动方向的确定。利用数值仿真和海上航船实际航迹验证了该算法的可行性。结果表明,本文提出的算法可有效获得水下目标的运动状态。

A target moving analysis based on distributed vertical linear arrays(VLA)is proposed in this article.Assuming that VLA has the ability of ranging,velocity measurement of target is analyzed firstly,then a least square method is used to calculate target′s velocity in robustness.The article analyzes target′s track with second VLA further.Finally,article indicates that target′s heading can be predicted using third VLA in most cases.Simulation and a real track of a vessel verify the feasibility of this method which means that it has engineering significance.