基于噪声相关模型的二元水听器组左右舷分辨技术研究

文中针对拖曳线列阵声纳的左右舷模糊问题,提出了一种全新的线列阵基阵结构:二元水听器组,并采用噪声相关模型实现左右舷分辨.经过理论分析和仿真实验研究,证明了基于噪声相关模型的二元水听器组能够有效地解决单频、多频和宽带情况下的左右舷分辨问题.而且二元水听器组比三元水听器组结构简单、安装精度要求低、花费相对低廉、算法简单、易于实时实现,是一种具有实用价值的拖曳线列阵左右舷分辨新技术.

A STUDY ON THE PORT/STARBOARD DISCRIMINATION OF TOWED LINE ARRAY MADE UP OF HYDROPHONE DOUBLETS BASED ON MODEL OF NOISE CORRELATION

Aiming at the port/starboard blur problem of a towed line array sonar, the paper presents a new towed line array structure: towed line array made up of hydrophone doublets using the model of noise correlation to accomplish port/starboard discrimination. After a theoretical analysis and simulation, it is proved that a towed line array made up of hydrophone doublets based on the model of noise correlation can solve the port/starboard blur problem under single frequency, multi-frequency and wide band conditions. The structure of towed line array made up of hydrophone doublets is simpler than that made up of hydrophone triplets. A towed line array made up of hydrophone doublets has less requirements in its installation, is cheaper, has simpler algorithm, and is easily realized. It is an effective measure for practical towed line array port/starboard discrimination.