基于离散平面阵波束形成的双线列阵左右舷分辨技术研究

The research on the twin-line arrays port/starboard distinguishing technology based on the beam forming of the discreet plane array

针对双线列阵左右舷分辨问题 ,提出了一种基于离散平面阵波束形成的左右舷分辨技术 ,将双线列阵看作是由无指向性水听器构成的平面阵 ,依照平面阵进行波束形成 ,从而在波束形成的同时实时分辨出目标所处的左右舷。运用该方法 ,最佳的双线阵间距是接收信号中心频率波长的 1/ 4 ,得到的结果等同于由具有心形指向性水听器组成的单根线列阵。该方法经过理论分析、仿真实验和湖试实验验证 ,证明其是简单的、有效的、可行的 ,有望应用于实际系统。

To be aimed at twin-line arrays port/starboard distinguishing problem,this paper raised out a technology based on the beam forming of the discreet plane array.It treats the twin-line array as the plane array consists of the non-directional hydrophones,form the beams according to the plane array,thus can distinguish the port/starboard of the target while forming of the beams.Use this technology,the optimum space between two single lines is the one fourth of the wavelength of the center frequency of the receiving signal,the result equals to the single line array consists of the cardioid directed hydrophones.After analysis,simulation and lake authenticaˉtion,this method proves to be simple,effective and practical,which can be used in the future.