舰载声纳波束稳定与俯仰的研究

Beam Steadying and Elevating with Shipborne Sonar

当船体发生摇摆或者需要将波束指向不同深度的水层时,需要对舰载声纳的波束进行稳定或俯仰控制。文章推导了甲板坐标系和大地坐标系之间的变换关系,并基于圆柱阵声纳,分析讨论了在不同的波束俯仰角下,圆柱阵换能器二维波束形成的性能。当俯仰角度较小时,在垂直方向上进行粗分层即可达到较好的性能;当俯仰角度较大时,则必须要对各阵元进行更精细的延迟控制。

It＇s necessary to steady or elevate the beam for shipborne sonar,when the ship is swayed or beam to different depth.The transformation between ground and deck coordinates is calculated.The performance of two-dimension beam forming method is discussed with different elevation based on cylinder transducer array.When the elevation is smaller,the method can achieve tolerable performance;while when the elevation is bigger,it＇s essential to classify the array sensors with a more refined scale in vertical dimension.